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1.
J Neurotrauma ; 38(11): 1572-1584, 2021 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-33779289

RESUMEN

Traumatic brain injury (TBI) causes long-lasting neurodegeneration and cognitive impairments; however, the underlying mechanisms of these processes are not fully understood. Acid-sensing ion channels 1a (ASIC1a) are voltage-gated Na+- and Ca2+-channels shown to be involved in neuronal cell death; however, their role for chronic post-traumatic brain damage is largely unknown. To address this issue, we used ASIC1a-deficient mice and investigated their outcome up to 6 months after TBI. ASIC1a-deficient mice and their wild-type (WT) littermates were subjected to controlled cortical impact (CCI) or sham surgery. Brain water content was analyzed 24 h and behavioral outcome up to 6 months after CCI. Lesion volume was assessed longitudinally by magnetic resonance imaging and 6 months after injury by histology. Brain water content was significantly reduced in ASIC1a-/- animals compared to WT controls. Over time, ASIC1a-/- mice showed significantly reduced lesion volume and reduced hippocampal damage. This translated into improved cognitive function and reduced depression-like behavior. Microglial activation was significantly reduced in ASIC1a-/- mice. In conclusion, ASIC1a deficiency resulted in reduced edema formation acutely after TBI and less brain damage, functional impairments, and neuroinflammation up to 6 months after injury. Hence, ASIC1a seems to be involved in chronic neurodegeneration after TBI.


Asunto(s)
Canales Iónicos Sensibles al Ácido/deficiencia , Daño Encefálico Crónico/etiología , Daño Encefálico Crónico/patología , Lesiones Traumáticas del Encéfalo/complicaciones , Lesiones Traumáticas del Encéfalo/patología , Animales , Daño Encefálico Crónico/psicología , Lesiones Traumáticas del Encéfalo/psicología , Modelos Animales de Enfermedad , Masculino , Ratones , Ratones Transgénicos , Actividad Motora
2.
Neuropsychology ; 34(4): 479-492, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32134282

RESUMEN

OBJECTIVE: It was suggested that the bimanual coupling effect might be linked to motor intentionality and planning, which are the top-down components of motor execution. However, previous results in pathological and healthy individuals have also underlined the pivotal role of bottom-up sensorimotor information. METHOD: In this single-case study, the Circles-Lines Coupling Task was administered to a left-parietal-brain-damaged individual. The cerebral lesion caused a central proprioceptive loss, relative to the impaired right hand, when out of the visual control. For the 1st time in literature, we sought to investigate whether the movement of the unaffected hand induced an efficient coupling effect on the movement of the affected one. The bimanual task was performed in the presence and absence of visual input. The patient's performance was compared with that of healthy controls. RESULTS: We observed the traditional bimanual coupling effect in healthy controls. Moreover, we also replicated the effect when they performed the task blindfolded. In the case of the patient, both hands showed the typical ovalization of the line trajectory when the task was performed in visual modality. It is interesting that when the patient performed the task blindfolded, the trajectories of the impaired right hand seemed to be not influenced by the concomitant circular movement of the spared left hand. CONCLUSIONS: The movement of the unaffected hand induced a bimanual coupling effect on the movement of the affected one only when the visual input was available. In absence of a visual feedback, the aberrant proprioceptive information might preclude the emerging of bimanual coupling, even in the case of a preserved motor intentionality and planning. (PsycInfo Database Record (c) 2020 APA, all rights reserved).


Asunto(s)
Daño Encefálico Crónico/etiología , Daño Encefálico Crónico/psicología , Propiocepción , Adulto , Daño Encefálico Crónico/diagnóstico por imagen , Neoplasias Encefálicas/complicaciones , Neoplasias Encefálicas/psicología , Retroalimentación Sensorial , Femenino , Lateralidad Funcional , Mano/fisiopatología , Humanos , Imagen por Resonancia Magnética , Masculino , Meningioma/complicaciones , Meningioma/psicología , Persona de Mediana Edad , Lóbulo Parietal/diagnóstico por imagen , Desempeño Psicomotor
3.
Sci Rep ; 9(1): 16158, 2019 11 06.
Artículo en Inglés | MEDLINE | ID: mdl-31695095

RESUMEN

For those surviving encephalitis, the influence on daily life of patients and their relatives may be substantial. In contrast, the prognosis after aseptic meningitis (ASM) is considered good. In this prospective study in patients with encephalitis (n = 20) and ASM (n = 46), we show that both groups experienced reduced Health Related Quality of Life (HRQoL) at two months after discharge, and that workability was reduced in 37% of the patients with ASM. However, 12 months after discharge no neuropsychological deficits were detected in the ASM group, whereas patients with encephalitis had lower scores on tests of fine motor and psychomotor skills as well as on learning and memory. We also found that for patients with encephalitis, neopterin, as a marker of Th1 cell induced macrophage activation, and a putatively neurotoxic ratio of the kynurenine pathway (KP) measured during the acute phase was associated with lower HRQoL. Our data show that not only encephalitis, but also ASM has substantial short-term influence on HRQoL and workability. For patients with encephalitis we suggest a link between immune activation and activation of the KP during the acute phase with impaired HRQoL.


Asunto(s)
Encefalitis/psicología , Meningitis Aséptica/psicología , Calidad de Vida , Sobrevivientes/psicología , Adulto , Anciano , Biomarcadores , Daño Encefálico Crónico/etiología , Daño Encefálico Crónico/psicología , Encefalitis/complicaciones , Encefalitis/inmunología , Encefalitis/terapia , Femenino , Estudios de Seguimiento , Humanos , Quinurenina/metabolismo , Discapacidades para el Aprendizaje/etiología , Discapacidades para el Aprendizaje/psicología , Activación de Macrófagos , Masculino , Trastornos de la Memoria/etiología , Trastornos de la Memoria/psicología , Meningitis Aséptica/complicaciones , Meningitis Aséptica/inmunología , Meningitis Aséptica/terapia , Persona de Mediana Edad , Neopterin/sangre , Pruebas Neuropsicológicas , Pronóstico , Estudios Prospectivos , Desempeño Psicomotor , Células TH1/inmunología , Resultado del Tratamiento
4.
Pediatr Blood Cancer ; 66(11): e27947, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31418996

RESUMEN

BACKGROUND: Survivors of childhood brain tumors are prone to sleep and neurocognitive problems. Effective interventions to improve neurocognitive functioning are largely lacking. In general, sleep problems are negatively related to neurocognitive functioning, but this relationship is unclear in survivors of childhood brain tumors. Therefore, the occurrence of sleep problems, potential risk factors, and the relation between sleep and executive functioning were evaluated. PROCEDURE: Baseline data of a randomized controlled trial on the effectiveness of neurofeedback were used. Childhood brain tumor survivors 8-18 years of age with parent-reported neurocognitive complaints ≥2 years after treatment were eligible. Parents completed the Sleep Disturbance Scale for Children. Executive functioning was assessed by parents and teachers (Behavior Rating Inventory of Executive Functioning). Multiple linear regression analyses were used to examine sociodemographic and medical characteristics and emotional difficulties and hyperactivity/inattention (Strength and Difficulties Questionnaire) as potential risk factors for sleep problems, and to assess the association between sleep and executive functioning. RESULTS: Forty-eight percent of survivors (n = 82, 7.0 ± 3.6 years post diagnosis, age 13.8 ± 3.2 years) had sleep problems and scored significantly worse than the norm on the subscales Initiating and Maintaining Sleep, Excessive Somnolence, and the total scale (effect sizes 0.58-0.92). Emotional problems and/or hyperactivity/inattention were independent potential risk factors. Sleep problems were associated with worse parent-reported executive functioning. CONCLUSIONS: Sleep problems occur among half of childhood brain tumor survivors with neurocognitive problems, and are associated with worse executive functioning. Future studies should focus on the development of sleep interventions for this population, to improve sleep as well as executive functioning.


Asunto(s)
Daño Encefálico Crónico/etiología , Neoplasias Encefálicas/psicología , Supervivientes de Cáncer/psicología , Trastornos de la Conducta Infantil/etiología , Trastornos del Conocimiento/etiología , Trastornos del Sueño-Vigilia/etiología , Adolescente , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Trastorno por Déficit de Atención con Hiperactividad/etiología , Trastorno por Déficit de Atención con Hiperactividad/psicología , Daño Encefálico Crónico/psicología , Neoplasias Encefálicas/terapia , Niño , Trastornos de la Conducta Infantil/epidemiología , Trastornos de la Conducta Infantil/psicología , Trastornos del Conocimiento/epidemiología , Irradiación Craneana/efectos adversos , Craneotomía/efectos adversos , Emociones , Función Ejecutiva , Humanos , Pruebas Neuropsicológicas , Prevalencia , Psicología , Índice de Severidad de la Enfermedad , Trastornos del Sueño-Vigilia/epidemiología
5.
Top Stroke Rehabil ; 26(7): 523-527, 2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31287384

RESUMEN

Objective: To assess swallowing progression and its association with the extension of brain damage and cognitive impairment during the acute phase of ischemic stroke. Methods: Cross-sectional, observational study with 50 patients, who were admitted to a Stroke Unit with cerebral ischemia, with a maximum stroke time of 24 h. The following clinical tools were used: National Institutes of Health Stroke Scale, Mini-Mental State Examination, Frontal Battery Assessment, and the Alberta Stroke Program Early CT Score for neuroimaging. The Gugging Swallowing Screen and the Functional Oral Intake Scale were used to assess swallowing. The patients were assessed at three different time-points: at hospital admission, after 72 h of hospitalization, and at hospital discharge. Results: The mean age of patients was 65.5 years. The frequency of dysphagic patients was 50.0%, 18.0%, and 12.0% at admission, after 72 h of hospitalization, and at discharge, respectively. Scores on the Frontal Battery Assessment and the Alberta Stroke Program Early CT Score were associated with dysphagia progression. Conclusion: Dysphagia is a common complication in the acute phase of stroke, and is associated with the extension of brain damage and cognitive impairment.


Asunto(s)
Daño Encefálico Crónico/etiología , Daño Encefálico Crónico/psicología , Isquemia Encefálica/complicaciones , Corteza Cerebral , Disfunción Cognitiva/etiología , Disfunción Cognitiva/psicología , Trastornos de Deglución/etiología , Accidente Cerebrovascular/complicaciones , Adulto , Anciano , Anciano de 80 o más Años , Daño Encefálico Crónico/diagnóstico por imagen , Isquemia Encefálica/diagnóstico por imagen , Isquemia Encefálica/psicología , Disfunción Cognitiva/diagnóstico por imagen , Estudios Transversales , Trastornos de Deglución/diagnóstico por imagen , Trastornos de Deglución/psicología , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Pruebas de Estado Mental y Demencia , Persona de Mediana Edad , Factores Socioeconómicos , Accidente Cerebrovascular/diagnóstico por imagen , Accidente Cerebrovascular/psicología , Tomografía Computarizada por Rayos X
6.
Exp Neurol ; 317: 22-33, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30790555

RESUMEN

Intracerebral hemorrhage (ICH) is a devastating stroke subtype and the presence of extracorpuscular hemoglobin (Hb) exacerbates brain damage. Haptoglobin (Hp) binds Hb, which prevents its oxidation and participation in neurotoxic reactions. Multiple studies have investigated the role of Hp under conditions of intravascular hemolysis, but little is known about its role in the brain and following ICH where extravascular hemolysis is rampant. Young and aged wildtype and Hp-/- mice underwent the autologous blood or collagenase ICH model. Early after ICH, Hp-/- mice display 58.0 ±â€¯5.6% and 36.7 ±â€¯6.9% less brain damage in the autologous blood and collagenase ICH models, respectively. In line with these findings, Hp-/- mice display less neurological deficits on several neurobehavioral tests. Hp-/- mice have less Perl's iron content, HO1 expression, and blood brain barrier dysfunction, but no difference in brain Hb content, astrogliosis and angiogenesis/neovascularization. At the later endpoint, the young cohort displays 27.8 ±â€¯9.3% less brain damage, while no difference is seen with the aged cohort. For both cohorts, no differences are seen in HO1 levels or iron accumulation, but young Hp-/- mice display less thalamic astrogliosis and striatal microgliosis. This study reveals that the presence or absence of Hp exerts important time- and age-dependent influences on ICH outcomes.


Asunto(s)
Envejecimiento/patología , Conducta Animal , Daño Encefálico Crónico/patología , Hemorragia Cerebral/patología , Haptoglobinas/genética , Enfermedades del Sistema Nervioso/patología , Animales , Transfusión Sanguínea , Barrera Hematoencefálica/patología , Daño Encefálico Crónico/psicología , Hemorragia Cerebral/psicología , Colagenasas , Femenino , Hemo-Oxigenasa 1/biosíntesis , Hemopexina/biosíntesis , Hierro/metabolismo , Proteínas de la Membrana/biosíntesis , Ratones , Ratones Endogámicos C57BL , Ratones Noqueados , Enfermedades del Sistema Nervioso/etiología , Enfermedades del Sistema Nervioso/psicología , Desempeño Psicomotor
7.
J Neuropsychol ; 13(3): 564-588, 2019 09.
Artículo en Inglés | MEDLINE | ID: mdl-29663656

RESUMEN

Despite the apparent sociability of human kind, immoral behaviour is ever present in society. The term 'immoral behaviour' represents a complex array of conduct, ranging from insensitivity to topics of conversation through to violent assault and murder. To better understand the neuroscience of immoral behaviour, this review investigates two clinical populations that commonly present with changes in moral behaviour - behavioural-variant frontotemporal dementia and acquired brain injuries. Based on evidence from these groups, it is argued that rather than a single underlying cause, immoral behaviour can result from three distinct types of cognitive failure: (1) problems understanding others; (2) difficulties controlling behaviour; or (3) deficits in the capacity to make appropriate emotional contributions. Each of these failures is associated with damage to different brain regions. A more nuanced approach to the neuroscience of immoral behaviour has important implications for our understanding of immoral behaviour in a wide range of clinical groups, as well as human society more broadly.


Asunto(s)
Daño Encefálico Crónico/psicología , Principios Morales , Lesiones Traumáticas del Encéfalo/psicología , Demencia Frontotemporal/psicología , Humanos , Inhibición Psicológica
8.
J Neuropsychol ; 13(1): 46-66, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-28568707

RESUMEN

This study investigated whether functional transcranial Doppler ultrasound (fTCD) is a suitable tool for studying hemispheric lateralization of language in patients with pre-perinatal left hemisphere (LH) lesions and right hemiparesis. Eighteen left-hemisphere-damaged children and young adults and 18 healthy controls were assessed by fTCD and fMRI to evaluate hemispheric activation during two language tasks: a fTCD animation description task and a fMRI covert rhyme generation task. Lateralization indices (LIs), measured by the two methods, differed significantly between the two groups, for a clear LH dominance in healthy participants and a prevalent activation of right hemisphere in more than 80% of brain-damaged patients. Distribution of participants in terms of left, right, and bilateral lateralization was highly concordant between fTCD and fMRI values. Moreover, right hemisphere language dominance in patients with left hemispheric lesions was significantly associated with severity of cortical and subcortical damage in LH. This study suggests that fTCD is an easily applicable tool that might be a valid alternative to fMRI for large-scale studies of patients with congenital brain lesions.


Asunto(s)
Daño Encefálico Crónico/congénito , Daño Encefálico Crónico/diagnóstico por imagen , Lenguaje , Adolescente , Adulto , Daño Encefálico Crónico/psicología , Mapeo Encefálico , Niño , Femenino , Lateralidad Funcional , Humanos , Imagen por Resonancia Magnética , Masculino , Ultrasonografía Doppler Transcraneal , Adulto Joven
9.
J Neuropsychol ; 13(2): 198-213, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-29266757

RESUMEN

In the literature on apraxia of tool use, it is now accepted that using familiar tools requires semantic and mechanical knowledge. However, mechanical knowledge is nearly always assessed with production tasks, so one may assume that mechanical knowledge and familiar tool use are associated only because of their common motor mechanisms. This notion may be challenged by demonstrating that familiar tool use depends on an alternative tool selection task assessing mechanical knowledge, where alternative uses of tools are assumed according to their physical properties but where actual use of tools is not needed. We tested 21 left brain-damaged patients and 21 matched controls with familiar tool use tasks (pantomime and single tool use), semantic tasks and an alternative tool selection task. The alternative tool selection task accounted for a large amount of variance in the single tool use task and was the best predictor among all the semantic tasks. Concerning the pantomime of tool use task, group and individual results suggested that the integrity of the semantic system and preserved mechanical knowledge are neither necessary nor sufficient to produce pantomimes. These results corroborate the idea that mechanical knowledge is essential when we use tools, even when tasks assessing mechanical knowledge do not require the production of any motor action. Our results also confirm the value of pantomime of tool use, which can be considered as a complex activity involving several cognitive abilities (e.g., communicative skills) rather than the activation of gesture engrams.


Asunto(s)
Daño Encefálico Crónico/psicología , Conocimiento , Comportamiento del Uso de la Herramienta , Anciano , Daño Encefálico Crónico/diagnóstico por imagen , Escolaridad , Femenino , Lateralidad Funcional , Gestos , Humanos , Imagen por Resonancia Magnética , Masculino , Fenómenos Mecánicos , Persona de Mediana Edad , Desempeño Psicomotor , Semántica , Tomografía Computarizada por Rayos X
10.
Neuropsychologia ; 130: 78-91, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30098328

RESUMEN

Neuroimaging studies have identified the superior parietal lobules bilaterally as the neural substrates of reduced visual attention (VA) span in developmental dyslexia. It remains however unclear whether the VA span deficit and the deficits in temporal and spatial attention shifting also reported in dyslexic children reflect a unitary spatio-temporal deficit of attention - probably linked to general posterior parietal dysfunction- or the dysfunction of distinct attentional systems that relate to different neural substrates. We explored this issue by testing an adult patient, IG, with a specific damage of the bilateral superior parietal lobules after stroke, on tasks assessing the VA span as well as temporal and spatial attention shifting. IG demonstrated a very severe VA span deficit, but preserved temporal attention shifting. Exogenous spatial orientation shifting was spared but her performance was impaired in endogenous attention. The overall findings show that distinct sub-systems of visual attention can be dissociated within the parietal lobe, suggesting that different attentional systems associated with specific neural networks can be selectively impaired in developmental dyslexia.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad/diagnóstico por imagen , Trastorno por Déficit de Atención con Hiperactividad/psicología , Dislexia/diagnóstico por imagen , Dislexia/psicología , Lóbulo Parietal/diagnóstico por imagen , Lóbulo Parietal/lesiones , Adulto , Atención , Parpadeo , Daño Encefálico Crónico/diagnóstico por imagen , Daño Encefálico Crónico/psicología , Isquemia Encefálica/diagnóstico por imagen , Isquemia Encefálica/psicología , Femenino , Humanos , Pruebas de Inteligencia , Masculino , Neuroimagen , Pruebas Neuropsicológicas , Estimulación Luminosa , Lectura , Accidente Cerebrovascular/diagnóstico por imagen , Accidente Cerebrovascular/psicología
11.
Int Arch Occup Environ Health ; 91(7): 843-858, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-29943196

RESUMEN

PURPOSE: Working in conditions with daily exposure to organic solvents for many years can result in a disease known as chronic solvent-induced encephalopathy (CSE). The aims for this study were to describe the neuropsychological course of CSE after first diagnosis and to detect prognostic factors for neuropsychological impairment after diagnosis. METHODS: This prospective study follows a Dutch cohort of CSE patients who were first diagnosed between 2001 and 2011 and underwent a second neuropsychological assessment 1.5-2 years later. Cognitive subdomains were assessed and an overall cognitive impairment score was calculated. Paired t tests and multivariate linear regression analyses were performed to describe the neuropsychological course and to obtain prognostic factors for the neuropsychological functioning at follow-up. RESULTS: There was a significant improvement on neuropsychological subdomains at follow-up, with effect sizes between small and medium (Cohen's d 0.27-0.54) and a significant overall improvement of neuropsychological impairment with a medium effect size (Cohen's d 0.56). Prognostic variables for more neuropsychological impairment at follow-up were a higher level of neuropsychological impairment at diagnosis and having a comorbid diagnosis of a psychiatric disorder at diagnosis. CONCLUSIONS: Results are in line with previous research on the course of CSE, stating that CSE is a non-progressive disease after cessation of exposure. However, during follow-up the percentage patients with permanent work disability pension increased from 14 to 37%. Preventive action is needed in countries where exposure to organic solvents is still high to prevent new cases of CSE.


Asunto(s)
Daño Encefálico Crónico/psicología , Disfunción Cognitiva/psicología , Enfermedades Profesionales/psicología , Exposición Profesional/efectos adversos , Solventes/toxicidad , Adulto , Atención , Daño Encefálico Crónico/inducido químicamente , Daño Encefálico Crónico/fisiopatología , Disfunción Cognitiva/inducido químicamente , Disfunción Cognitiva/fisiopatología , Femenino , Estudios de Seguimiento , Humanos , Modelos Lineales , Masculino , Memoria , Análisis Multivariante , Países Bajos , Enfermedades Profesionales/inducido químicamente , Enfermedades Profesionales/fisiopatología , Pronóstico , Estudios Prospectivos
12.
Ann Phys Rehabil Med ; 61(6): 386-394, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-29803002

RESUMEN

BACKGROUND: The key symptoms of auditory neglect include left extinction on tasks of dichotic and/or diotic listening and rightward shift in locating sounds. The anatomical correlates of the latter are relatively well understood, but no systematic studies have examined auditory extinction. Here, we performed a systematic study of anatomo-clinical correlates of extinction by using dichotic and/or diotic listening tasks. METHODS: In total, 20 patients with right hemispheric damage (RHD) and 19 with left hemispheric damage (LHD) performed dichotic and diotic listening tasks. Either task consists of the simultaneous presentation of word pairs; in the dichotic task, 1 word is presented to each ear, and in the diotic task, each word is lateralized by means of interaural time differences and presented to one side. RESULTS AND CONCLUSION: RHD was associated with exclusively contralesional extinction in dichotic or diotic listening, whereas in selected cases, LHD led to contra- or ipsilesional extinction. Bilateral symmetrical extinction occurred in RHD or LHD, with dichotic or diotic listening. The anatomical correlates of these extinction profiles offer an insight into the organisation of the auditory and attentional systems. First, left extinction in dichotic versus diotic listening involves different parts of the right hemisphere, which explains the double dissociation between these 2 neglect symptoms. Second, contralesional extinction in the dichotic task relies on homologous regions in either hemisphere. Third, ipsilesional extinction in dichotic listening after LHD was associated with lesions of the intrahemispheric white matter, interrupting callosal fibres outside their midsagittal or periventricular trajectory. Fourth, bilateral symmetrical extinction was associated with large parieto-fronto-temporal LHD or smaller parieto-temporal RHD, which suggests that divided attention, supported by the right hemisphere, and auditory streaming, supported by the left, likely play a critical role.


Asunto(s)
Percepción Auditiva , Daño Encefálico Crónico/psicología , Cerebro/fisiopatología , Extinción Psicológica , Trastornos de la Percepción/psicología , Adulto , Anciano , Atención , Pruebas de Audición Dicótica , Femenino , Lateralidad Funcional , Humanos , Masculino , Persona de Mediana Edad
13.
Brain Lang ; 177-178: 37-43, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29421270

RESUMEN

In this study we investigated the event-related potentials (ERPs) during the semantic judgment task (deciding if the two Chinese characters were semantically related or unrelated) to identify the timing of neural activation in children with early left brain damage (ELBD). The results demonstrated that compared with the controls, children with ELBD had (1) competitive accuracy and reaction time in the semantic judgment task, (2) weak operation of the N400, (3) stronger, earlier and later compensational positivities (referred to the enhanced P200, P250, and P600 amplitudes) in the central and right region of the brain to successfully engage in semantic judgment. Our preliminary findings indicate that temporally postlesional reorganization is in accordance with the proposed right-hemispheric organization of speech after early left-sided brain lesion. During semantic processing, the orthography has a greater effect on the children with ELBD, and a later semantic reanalysis (P600) is required due to the less efficient N400 at the former stage for semantic integration.


Asunto(s)
Daño Encefálico Crónico/fisiopatología , Encéfalo/fisiopatología , Semántica , Análisis y Desempeño de Tareas , Adulto , Daño Encefálico Crónico/psicología , Corteza Cerebral/fisiopatología , Niño , Toma de Decisiones/fisiología , Electroencefalografía/métodos , Potenciales Evocados/fisiología , Femenino , Lateralidad Funcional/fisiología , Humanos , Juicio , Masculino , Tiempo de Reacción/fisiología , Lóbulo Temporal/fisiopatología
14.
World Neurosurg ; 113: e161-e165, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-29421452

RESUMEN

OBJECTIVE: Common sequelae of subarachnoid hemorrhage (SAH) include somatic and/or cognitive impairment. This can cause emotional stress, social tensions, and difficulties in relationships. To test our hypothesis that more severe somatic and cognitive impairments increased the likelihood of disruption of a relationship after SAH, we assessed the integrity of marriage or partnership status in a well-evaluated subset of SAH patients. METHODS: Our sample comprised 50 SAH patients who were discharged to a neurologic, in-house rehabilitation center between 2005 and 2010. Deficits on admission to the rehabilitation center were divided into 18 categories and grouped into minor and major somatic deficits, as well as cognitive deficits. Clinical outcome scores, marital/partnership status, and duration of partnership before ictus were recorded. A follow-up questionnaire after 4.3 (2012) and 8.8 (2017) years was used to assess changes in marital/partnership status. Possible predictor parameters were estimated and included in a stepdown regression analysis. RESULTS: In 2012, after a mean follow-up of 4.3 years, 8 of the 50 SAH patients were divorced or separated, whereas after 8.8 years only 1 additional relationship had ended. In our regression model analysis, a "short duration of relationship" before SAH and the presence of a "few minor somatic deficits" were associated with a higher likelihood of divorce or separation in the near future and remained unchanged at long-term follow-up. CONCLUSION: Contrary to our hypothesis, neither the presence of severe somatic or cognitive deficits nor clinical evaluation scores reliably predicted divorce or separation after SAH.


Asunto(s)
Aneurisma Roto/psicología , Divorcio , Aneurisma Intracraneal/psicología , Matrimonio , Esposos/psicología , Hemorragia Subaracnoidea/psicología , Adulto , Anciano , Aneurisma Roto/complicaciones , Daño Encefálico Crónico/etiología , Daño Encefálico Crónico/psicología , Trastornos del Conocimiento/etiología , Trastornos del Conocimiento/psicología , Emociones , Femenino , Estudios de Seguimiento , Humanos , Aneurisma Intracraneal/complicaciones , Masculino , Persona de Mediana Edad , Hemorragia Subaracnoidea/etiología , Hemorragia Subaracnoidea/rehabilitación , Encuestas y Cuestionarios , Factores de Tiempo
15.
Neuropsychology ; 32(3): 249-258, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29215899

RESUMEN

OBJECTIVE: The purpose of this study was to deepen our understanding of the cognitive bases of human tool use based on the technical reasoning hypothesis (i.e., the reasoning-based approach). This approach assumes that tool use is supported by the ability to reason about an object's physical properties (e.g., length, weight, strength, etc.) to perform mechanical actions (e.g., lever). In this framework, an important issue is to understand whether left-brain-damaged (LBD) individuals with tool-use deficits are still able to estimate the physical object's properties necessary to use the tool. METHOD: Eleven LBD patients and 12 control participants performed 3 original experimental tasks: Use-Length (visual evaluation of the length of a stick to bring down a target), Visual-Length (to visually compare objects of different lengths) and Addition-Length (to visually compare added lengths). Participants were also tested on conventional tasks: Familiar Tool Use and Mechanical Problem-Solving (novel tools). RESULTS: LBD patients had more difficulties than controls on both conventional tasks. No significant differences were observed for the 3 experimental tasks. CONCLUSION: These results extend the reasoning-based approach, stressing that it might not be the representation of length that is impaired in LBD patients, but rather the ability to generate mechanical actions based on physical object properties. (PsycINFO Database Record


Asunto(s)
Daño Encefálico Crónico/psicología , Procesos Mentales , Comportamiento del Uso de la Herramienta , Adulto , Anciano , Isquemia Encefálica/psicología , Femenino , Lateralidad Funcional , Humanos , Masculino , Persona de Mediana Edad , Solución de Problemas , Desempeño Psicomotor , Percepción del Tamaño , Accidente Cerebrovascular/psicología , Percepción Visual
16.
J Clin Exp Neuropsychol ; 40(1): 45-61, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-28398126

RESUMEN

Risky and excessive behaviors, such as aggressive and compulsive behaviors, are frequently described in patients with brain damage and have dramatic psychosocial consequences. Although there is strong evidence that impulsivity constitutes a key factor at play in these behaviors, the literature about impulsivity in neuropsychology is to date scarce. In addition, examining and understanding these problematic behaviors requires the assumption that impulsivity is a multidimensional construct. Consequently, this article aims at shedding light on frequent risky and excessive behaviors in patients with brain damage by focusing on a unified, comprehensive, and well-validated model, namely, the UPPS model of impulsivity. This model considers impulsivity as a multidimensional construct that includes four facets: urgency, (lack of) premeditation, (lack of) perseverance, and sensation seeking. Furthermore, we discuss the psychological mechanisms underlying the dimensions of impulsivity, as well as the laboratory tasks designed to assess each mechanism and their neural bases. We then present a scale specifically designed to assess these four dimensions of impulsivity in patients with brain damage and examine the data regarding this multidimensional approach to impulsivity in neuropsychology. This review supports the need to adopt a multifactorial and integrative approach toward impulsive behaviors, and the model presented provides a valuable rationale to disentangle the nature of brain systems and mechanisms underlying impulsive behaviors in patients with brain damage. It may also foster further relevant research in the field of impulsivity and improve assessment and rehabilitation of impulsive behaviors in clinical settings.


Asunto(s)
Daño Encefálico Crónico/psicología , Conducta Impulsiva , Modelos Psicológicos , Neuropsicología , Agresión/fisiología , Agresión/psicología , Encéfalo/fisiopatología , Daño Encefálico Crónico/diagnóstico , Daño Encefálico Crónico/fisiopatología , Daño Encefálico Crónico/rehabilitación , Conducta Compulsiva/fisiopatología , Conducta Compulsiva/psicología , Femenino , Humanos , Conducta Impulsiva/fisiología , Masculino , Solución de Problemas/fisiología , Asunción de Riesgos
17.
Artículo en Español | MEDLINE | ID: mdl-29128284

RESUMEN

BACKGROUND AND OBJECTIVES: Several studies have shown misconceptions about brain injury in different populations. The aim of this study was to assess the knowledge and perceptions about brain injury of family members of neurosurgical patients in our hospital. MATERIAL AND METHODS: The participants (n=81) were relatives of patients admitted to the neurosurgery department between February and August 2016. They voluntarily completed a 19-item true-false format survey about brain injury based on a translation of other questionnaires used in previous studies from other countries (USA, Canada, UK, Ireland and New Zealand). Also, some sociodemographic data were collected (age, sex, education level and the patient's pathology). Data analysis was developed through graphical modelling with a regularisation parameter plotted on a network representing the association of the items of the questionnaire from the response pattern of participants. RESULTS: Data analysis showed two conceptual areas with a high rate of wrong answers: behaviour and management of patients, and expectations about acquired brain injury recovery. CONCLUSIONS: The results obtained in this study would enable us to objectify misconceptions about acquired brain injury in patients' relatives attended in the neurosurgery department. This lack of knowledge could be a great obstacle in patients' recovery process. Therefore, we suggest placing the emphasis on the provision of information on brain injury to patients' families, especially with regard to its symptoms and course of development.


Asunto(s)
Daño Encefálico Crónico/psicología , Comunicación , Familia/psicología , Alfabetización en Salud , Procedimientos Neuroquirúrgicos , Adulto , Enfermedades del Sistema Nervioso Central , Cultura , Escolaridad , Femenino , Humanos , Masculino , Persona de Mediana Edad , España , Encuestas y Cuestionarios
18.
Neuropsychology ; 32(3): 259-268, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29049888

RESUMEN

OBJECTIVE: Closing-in behavior (CIB) defines the abnormal misplacement of the copy performance, positioned very closed to or on the top of the model. This symptom is observed in graphic copying by patients suffering from different neurological diseases, most commonly dementia. The cognitive origins of this behavior are still a matter of investigation, and research of the last 10 years has been focused on exploring 2 main accounts of CIB, the compensation and the attraction hypotheses, providing evidence in both directions. While the first account defines CIB as a compensatory strategy to overcome visuospatial and/or working memory deficits during copying tasks, the attraction hypothesis looks at CIB as primitive default behavior in which attention and action are closely coupled and movements are performed toward the focus of attention. METHOD: We explored these 2 hypotheses in a sample of patients with and without CIB, and controls in 5 experiments: Experiments 1 and 2 tested the attraction hypothesis and, respectively, the prediction that CIB can be elicited in a noncopying dual task condition loading upon attentional resources or by irrelevant attentional grabbing stimuli. The other experiments investigated the compensation hypothesis manipulating the distance between model and copying space (Experiment 3), the task demand (single or dual task loading on verbal working memory; Experiment 4), the task requirements (copying and tracing) and visual demand (visual copy and memory; Experiment 5). RESULTS: The results support the attraction hypothesis of CIB. CONCLUSIONS: CIB reflects an impairment of the attention and action system, rather than a compensatory strategy. (PsycINFO Database Record


Asunto(s)
Enfermedades del Sistema Nervioso/diagnóstico , Enfermedades del Sistema Nervioso/psicología , Pruebas Neuropsicológicas , Anciano , Anciano de 80 o más Años , Enfermedad de Alzheimer/diagnóstico , Enfermedad de Alzheimer/psicología , Atención , Daño Encefálico Crónico/psicología , Femenino , Humanos , Masculino , Memoria a Corto Plazo , Persona de Mediana Edad , Desempeño Psicomotor , Percepción Espacial , Percepción Visual
19.
Rev Neurol ; 64(s03): S1-S7, 2017 May 17.
Artículo en Español | MEDLINE | ID: mdl-28524211

RESUMEN

Brain injury is one of the most frequent causes of death and disability in the child and adolescent. The improvement in patient care in the acute moment and the evolution of health care has meant and increase in the survival of these patients and also of the sequelae. Physical, cognitive-behavioral or organic symptoms are usually. The second is being one of the most frequent and most limiting in these patients. The brain injury affects the patient but involves the whole family because of the disability and the dependence it entails. The team is multidisciplinary and the rehabilitation physician performs the coordination functions. The family should receive assistance from the first day and are an important part in the proper evolution of patients. The treatment must be individualized and adapted for each patient and usually last between 6 and 18 months.


TITLE: Tratamiento rehabilitador en el paciente infantojuvenil con daño cerebral adquirido.El daño cerebral es una de las causas mas frecuentes de muerte y discapacidad en la poblacion infantojuvenil. La mejoria en la atencion a los pacientes en el momento agudo y la evolucion de la asistencia sanitaria han supuesto un aumento de la supervivencia de estos pacientes y tambien de las secuelas. Secuelas fisicas, cognitivo-conductuales u organicas son frecuentes, y las segundas son unas de las mas frecuentes y mas limitantes en estos pacientes. El daño cerebral afecta al paciente, pero involucra a toda la familia por la discapacidad que implica y por la dependencia que conlleva. El equipo es multidisciplinar, y el medico rehabilitador hace las funciones de coordinacion. La familia debe recibir asistencia desde el primer dia y es parte importante en la evolucion adecuada de los pacientes. El tratamiento debe ser individualizado y adaptado para cada paciente, y suele durar entre 6 y 18 meses.


Asunto(s)
Lesiones Encefálicas/rehabilitación , Adolescente , Daño Encefálico Crónico/etiología , Daño Encefálico Crónico/psicología , Daño Encefálico Crónico/rehabilitación , Lesiones Encefálicas/complicaciones , Lesiones Encefálicas/psicología , Cuidadores/educación , Cuidadores/psicología , Niño , Trastornos de la Conducta Infantil/etiología , Trastornos de la Conducta Infantil/parasitología , Trastornos de la Conducta Infantil/rehabilitación , Trastornos del Conocimiento/etiología , Trastornos del Conocimiento/parasitología , Trastornos del Conocimiento/rehabilitación , Terapia Combinada , Evaluación de la Discapacidad , Manejo de la Enfermedad , Relaciones Familiares , Humanos , Grupo de Atención al Paciente , Medicina de Precisión , Calidad de Vida , Centros de Rehabilitación , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
20.
Rev Neurol ; 64(s03): S9-S12, 2017 May 17.
Artículo en Español | MEDLINE | ID: mdl-28524212

RESUMEN

We report on the experience of a family in which the youngest child has acquired brain injury and the struggle undertaken by the family to improve the neurorehabilitation resources in the public health service. The article outlines the main demands, from the socio-familial point of view, as regards the improvement of neurological rehabilitation and the resources needed to deliver it.


TITLE: Daño cerebral sobrevenido infantil, una experiencia personal. Reclamaciones desde el punto de vista sociofamiliar.Se describe la experiencia de una familia en la que el hijo menor tiene daño cerebral sobrevenido y la lucha emprendida por la familia para mejorar los recursos neurorrehabilitadores de la sanidad publica. Se recogen las principales reclamaciones, desde el punto de vista sociofamiliar, en cuanto a la mejora en la atencion neurorrehabilitadora y los recursos necesarios.


Asunto(s)
Daño Encefálico Crónico , Lesiones Traumáticas del Encéfalo , Servicios de Salud para Personas con Discapacidad/legislación & jurisprudencia , Rehabilitación/legislación & jurisprudencia , Accidentes por Caídas , Daño Encefálico Crónico/economía , Daño Encefálico Crónico/etiología , Daño Encefálico Crónico/psicología , Daño Encefálico Crónico/rehabilitación , Lesiones Traumáticas del Encéfalo/complicaciones , Lesiones Traumáticas del Encéfalo/economía , Lesiones Traumáticas del Encéfalo/psicología , Lesiones Traumáticas del Encéfalo/rehabilitación , Cuidadores/psicología , Niño , Fracturas Múltiples/etiología , Fracturas Múltiples/rehabilitación , Accesibilidad a los Servicios de Salud , Necesidades y Demandas de Servicios de Salud , Servicios de Salud para Personas con Discapacidad/economía , Servicios de Salud para Personas con Discapacidad/organización & administración , Disparidades en Atención de Salud , Hospitales Privados/economía , Humanos , Maniobras Políticas , Masculino , Programas Nacionales de Salud/legislación & jurisprudencia , Derechos del Paciente/legislación & jurisprudencia , Estado Vegetativo Persistente , Rehabilitación/métodos , Rehabilitación/organización & administración , Centros de Rehabilitación/economía , Centros de Rehabilitación/legislación & jurisprudencia , Centros de Rehabilitación/organización & administración , España
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