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1.
Epilepsy Behav ; 151: 109588, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38160576

RESUMO

OBJECTIVE: To describe a novel set of gestural automatisms related to the use of digital screens on smartphones and tablets in patients with epilepsy. METHODS: Representative patients were selected from among those admitted to the Epilepsy Monitoring Unit at the Toronto Western Hospital between April 2016 and January 2020, and included if they exhibited automatisms clearly related to or mimicking digital device use. RESULTS: In total 5 patients were included, 4 female. All had temporal lobe epilepsy: 2 had left mesial temporal sclerosis and 3 had normal imaging. Nearly equal numbers of seizures began with right (5/9) and left (4/9) temporal onsets, with most automatisms occurring after seizure propagation to bilateral temporal involvement (6/9). Left-handed automatisms were most common (8/9). The majority of the automatisms (7/9) were perseverative on device usage prior to the seizure. CONCLUSION: Gestural automatisms appear related to the contemporary lived experience, culture, and habitual behaviour of patients with epilepsy. In the modern era, the use of smartphones and tablets are both common and habitual for many, and this case series shows that touch-screen automatisms may be added to the semiological panoply of temporal lobe seizures.


Assuntos
Epilepsia do Lobo Temporal , Epilepsia , Humanos , Feminino , Automatismo , Epilepsia do Lobo Temporal/complicações , Epilepsia do Lobo Temporal/diagnóstico por imagem , Convulsões , Monitorização Fisiológica , Eletroencefalografia
2.
Proc Natl Acad Sci U S A ; 118(36)2021 09 07.
Artigo em Inglês | MEDLINE | ID: mdl-34462351

RESUMO

Daily life requires transitions between performance of well-practiced, automatized behaviors reliant upon internalized representations and behaviors requiring external focus. Such transitions involve differential activation of the default mode network (DMN), a group of brain areas associated with inward focus. We asked how optogenetic modulation of the ventral pallidum (VP), a subcortical DMN node, impacts task switching between internally to externally guided lever-pressing behavior in the rat. Excitation of the VP dramatically compromised acquisition of an auditory discrimination task, trapping animals in a DMN state of automatized internally focused behavior and impairing their ability to direct attention to external sensory stimuli. VP inhibition, on the other hand, facilitated task acquisition, expediting escape from the DMN brain state, thereby allowing rats to incorporate the contingency changes associated with the auditory stimuli. We suggest that VP, instant by instant, regulates the DMN and plays a deterministic role in transitions between internally and externally guided behaviors.


Assuntos
Automatismo , Prosencéfalo Basal/fisiologia , Comportamento Animal , Rede de Modo Padrão , Animais , Aprendizagem , Masculino , Rede Nervosa/fisiologia , Optogenética , Ratos , Ratos Long-Evans
3.
Behav Sci Law ; 42(1): 39-45, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38102078

RESUMO

Epilepsy may be associated with automatisms that are classed as 'insane 'as they are deemed to have originated within the mind. 'Sane automatism' is said to occur from external factors, such as physical trauma, while 'insane automatism' is said to be innate to the individual experiencing them. To claim automatism within the context of a criminal matter requires a detailed evaluation of the behavior demonstrated and a questioning of the volitional and purposeful nature of this behavior. It is insufficient to rely upon past behavior in association with these seizures to justify the defense of automatism within a specific event. Epilepsy is often considered to be associated with an increase in violence. Proper epidemiological research, both in long-term, large population control studies and hospital-based studies, has suggested that epilepsy, per se, is not associated with an increase in violence when compared to the population at large and controlled for other familial and environmental factors.


Assuntos
Epilepsia , Defesa por Insanidade , Humanos , Epilepsia/psicologia , Violência , Automatismo
4.
Neurocase ; 29(1): 25-27, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37943995

RESUMO

Ictal religious speech and gestures, rare ictal semiological findings, sign the epileptic focus at the non-dominant temporal lobe in the literature. Therefore, we aim to present non-dominant temporal lobe semiological findings, including ictal praying and religious gestures in three cases.


Assuntos
Epilepsia do Lobo Temporal , Humanos , Epilepsia do Lobo Temporal/complicações , Epilepsia do Lobo Temporal/diagnóstico por imagem , Fala , Automatismo , Lateralidade Funcional , Eletroencefalografia
5.
Epilepsy Behav ; 122: 108122, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34175663

RESUMO

INTRODUCTION: Semiology and anatomo-electroclinical correlations remain invaluable for maintaining the level of excellence in temporal lobe epilepsy (TLE) surgery, in parallel to the constantly evolving technical progress. The aim of this study was to address semiological frequent and not so frequent signs, rarities and red flags in a long follow-up surgical series of patients suffering from TLE. METHODS: Patients operated within the boundaries of the TL at our center, with presurgical video-EEG recorded seizures and seizure free after a postoperative follow-up of at least 24 months were included. Ictal semiology was systematically described and new red flags were explored by comparing with a second group of patients with the same inclusion criteria but whose outcome had been unfavorable (Engel II-IV). RESULTS: Sixty-two patients were included, 46 seizure free and 16 with outcome Engel II-IV. Most seizure-free patients had a classical semiological presentation including aura (69.6%, abdominal the most frequent), followed by loss of responsiveness (90.2%) oral automatisms (90.7%), ipsilateral gestural automatisms (53.5%), contralateral upper limb dystonia (37.5%) or immobility (39.1%), and early ipsilateral non-versive head orientation (33.3%). More infrequent presentations were also present in the group of seizure-free patients: ictal language disturbance (13%), maintenance of responsiveness during seizures (9.8%), and contralateral rhythmic non manipulative automatism (6.9%). The presence of an isolated viscerosensory and/or psychic aura was significantly more frequent in the seizure-free group (p = 0.017), as well as oroalimentary automatisms (p = 0.005). Two signs were only present in the group with outcome Engel II-IV, constituting possible red flags (0.06 < p < 0.07): inferior limbs stepping-like automatisms and postictal dysarthria. CONCLUSION: An adequate clinical exam during seizures and a careful analysis of video recordings allow to recognize infrequent but well-characterized ictal signs that are part of the range of semiology in TLE, together with the most frequent and classical ictal presentations. Special attention to the localization hypothesis must be paid in the absence of oroalimentary automatisms or when the signs classified as possible red flags emerge.


Assuntos
Epilepsia do Lobo Temporal , Automatismo , Eletroencefalografia , Epilepsia do Lobo Temporal/complicações , Epilepsia do Lobo Temporal/diagnóstico , Lateralidade Funcional , Humanos , Convulsões
6.
Psychol Res ; 85(2): 777-792, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31734821

RESUMO

Research on multi-digit number processing suggests that, in Arabic numerals, their place-value magnitude is automatically activated, whenever a magnitude-relevant task was employed. However, so far, it is unknown, whether place-value is also activated when the target task is magnitude-irrelevant. The current study examines this question using the parity congruency effect in two-digit numbers: It describes that responding to decade-digit parity congruent numbers (e.g., 35, 46; same parity of decades and units) is faster than to decade-digit parity incongruent numbers (e.g., 25; 36; different parities of decades and units). Here we investigate the (a-) symmetry of the parity congruency effect; i.e. whether it makes a difference whether participants are assessing the parity of the unit digit or the decade digit. We elaborate, how and why such an asymmetry is related to place-value processing, because the parity of the unit digit only interferes with the parity of the decade digit, while the parity of the decade digit interferes with both the parity of the unit digit and the integrated parity of the whole two-digit number. We observed a significantly larger parity congruency effect in the decade parity decision than in the unit parity decision. This suggests that automatic place-value processing also takes place in a typical parity judgment task, in which magnitude is irrelevant. Finally, because of the cross-lingual design of the study, we can show that these results and their implications were language-independent.


Assuntos
Atenção/fisiologia , Automatismo/psicologia , Julgamento , Reconhecimento Visual de Modelos/fisiologia , Adulto , Feminino , Humanos , Idioma , Masculino , Matemática , Tempo de Reação/fisiologia , Adulto Jovem
7.
J Law Med ; 28(2): 521-536, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33768756

RESUMO

The first instance assessment of all disability sectors in Italy takes place in most parts of the country in two stages. The first step is the applicant's examination and judgment performed by the Local Health Authority (ASL). The second phase is the verification of the National Social Security Institute (INPS) on the ASL report, which ends with its confirmation or suspension and repetition. Disability examination strategies can fluctuate between the evaluation automatism and the personalised approach. Evaluation automatism implies a necessary and shared prediction of the judgment due to a specific diagnosis. The personalised approach favours a rigorously individualised, unrepeatable assessment, specifically adapted to the case examined. In both perspectives, the criteria for defining disability belong to a medical model that measures the disease-related impairment. The degree of sharing of judgments between ASL and INPS can often imply and express the contribution of the evaluation automatism to the procedure.


Assuntos
Avaliação da Deficiência , Pessoas com Deficiência , Automatismo , Humanos , Itália , Previdência Social
8.
Epilepsy Behav ; 103(Pt A): 106666, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31848102

RESUMO

BACKGROUND: Automatisms are frequently encountered during video-monitoring of patients with focal epilepsy in the EMU and generally thought to have a low lateralizing value in isolation. Rhythmic ictal nonclonic hand (RINCH) motions have been described in small series as a potentially lateralizing semiologic sign. We aimed to expand on prior work and determine the prevalence, characteristics, and lateralizing value of RINCH motions in general epilepsy monitoring unit (EMU) population with focal epilepsy. METHODS: All patients with recorded seizures in the EMU were included in our database search. Search was performed to identify seizures with reported RINCH motions. Both electroencephalography (EEG) and video of identified seizures were reviewed. RESULTS: We identified RINCH motions in 131 seizures in 71 patients. Overall seizure localization was temporal in 57 patients, frontotemporal in 3 patients, and extratemporal in 7 patients. We estimated RINCH motions to occur in 8.5% of EMU patients with recorded seizures. The most common RINCH motions in descending order were as follows: hand opening and closing, finger rubbing, milking motions, finger flexion/extension, and pill rolling. The mean RINCH motion latency from seizure onset was 34.48 s in temporal lobe epilepsy and 10.31 s in frontal lobe epilepsy. The RINCH motions were contralateral to seizure onset in 61 of 65 (93.8%) with lateralized seizure onset. Dystonic posturing was present in 43% of seizures with RINCH motions. CONCLUSION: The RINCH motions are a common sign in focal seizures and should be distinguished from other types of manual automatism as they carry a strong lateralizing value.


Assuntos
Automatismo/diagnóstico , Eletroencefalografia , Epilepsias Parciais/fisiopatologia , Lateralidade Funcional , Mãos/fisiopatologia , Convulsões/diagnóstico , Adulto , Automatismo/etiologia , Automatismo/fisiopatologia , Criança , Epilepsias Parciais/diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Monitorização Fisiológica , Convulsões/etiologia , Convulsões/fisiopatologia , Gravação em Vídeo
9.
Epilepsia ; 60(6): 1150-1159, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31095733

RESUMO

OBJECTIVE: Oroalimentary automatisms (OAAs) are common clinical manifestations of medial temporal lobe epilepsy. Nevertheless, the location of the symptomatogenic zone of OAAs remains unclear. The generation mechanism of OAAs also has not been clarified. We attempt to explain these problems by analyzing interictal [18 F]-fluorodeoxyglucose positron emission tomography (18 FDG-PET) imaging and ictal stereo-electroencephalography (SEEG) recordings in patients with medial temporal lobe epilepsy. METHODS: Fifty-seven patients with mesial temporal lobe epilepsy were analyzed retrospectively. All underwent anterior temporal lobectomy (ATL) and were seizure-free. The patients were divided into OAA (+) and OAA (-) groups according to the occurrence of consistent stereotyped OAAs. The interictal PET data were compared with those of 18 healthy controls and were then compared between groups using statistical parametric mapping (SPM). Functional connectivity using linear regression analysis was performed between the target brain regions. To clarify the network of OAAs, ictal epileptogenicity index (EI) values, and the nonlinear correlation method h2 were performed with SEEG on patients. RESULTS: Compared to OAAs (-), the rolandic operculum was the only area with significant differences. Hippocampus and rolandic operculum showed significant correlations in the OAA (+) group (y = 0.758x+0.470, R2  = 0.456, P = 0.000). No correlation was found in the OAA (-) group (P = 0.486). The EI values of the OAA (+) group (median 0.20) were significantly higher (P < 0.0001) than those of the OAA (-) group (median 0). The h2 in the OAA (+) group (h2  = 0.23 ± 0.13) showed stronger functional connectivity (t = 6.166, P < 0.0001) than that of the OAA (-) group (h2  = 0.08 ± 0.05). SIGNIFICANCE: The rolandic operculum is most likely to be the symptomatogenic zone of OAAs. In medial temporal lobe epilepsy, unilateral functional connection from the hippocampus to the rolandic operculum during seizure onset is the basis for the generation of OAAs.


Assuntos
Automatismo/diagnóstico por imagem , Automatismo/etiologia , Epilepsia do Lobo Temporal/complicações , Epilepsia do Lobo Temporal/diagnóstico por imagem , Adolescente , Adulto , Lobectomia Temporal Anterior , Criança , Pré-Escolar , Eletroencefalografia , Epilepsia do Lobo Temporal/cirurgia , Feminino , Fluordesoxiglucose F18 , Hipocampo/diagnóstico por imagem , Hipocampo/fisiopatologia , Humanos , Lactente , Masculino , Boca/fisiopatologia , Tomografia por Emissão de Pósitrons , Compostos Radiofarmacêuticos , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
10.
Eur J Neurol ; 26(5): 760-e55, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30565357

RESUMO

BACKGROUND AND PURPOSE: The prognosis of status epilepticus (SE) depends on the time between onset and the diagnosis and start of treatment. Our aim was to design a scale with predictive value for pre-hospital diagnosis of SE. METHODS: This was a retrospective study of 292 patients who attended the emergency department for an epileptic seizure. A total of 49 patients fulfilled the criteria for SE. We recorded the patients' history and clinical features. Variables independently associated with SE were combined to design a clinical scale. The performance of the scale was evaluated in a validation dataset of 197 patients. RESULTS: A total of 50.3% of the patients were male and the mean age was 55.9 years. The following features were more prevalent in patients with SE: abnormal speech (79.6% vs. 18.9%, P < 0.001), eye deviation (69.4% vs. 14.0%, P < 0.001), automatism (22.4% vs. 6.3%, P < 0.001), hemiparesis (24.5% vs. 10.9%, P = 0.011), state of stupor/coma (46.9% vs. 4.2%, P < 0.001) and number of pre-hospital seizures, i.e. two (34.7% vs. 4.5%, P < 0.001) or more than two (51.0% vs. 0.4%, P < 0.001). Based on these findings, we designed a scale that scored 1 point each for presence of abnormal speech, eye deviation, automatism and two seizures, and 2 points for more than two seizures. The predictive capacity of the scale for identifying SE in the validation dataset was 98.7% (95% confidence interval, 97.3%-100%) and 85.4% of patients with a score >1 had SE. CONCLUSIONS: A score >1 on the ADAN scale is a robust predictor of the diagnosis of SE in patients who experience an epileptic seizure. This scale may be a useful tool for clinical use and warrants further investigation.


Assuntos
Estado Epiléptico/diagnóstico , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Automatismo , Bases de Dados Factuais , Eletroencefalografia , Serviços Médicos de Emergência , Movimentos Oculares , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prognóstico , Reprodutibilidade dos Testes , Estudos Retrospectivos , Fatores Sexuais , Distúrbios da Fala/diagnóstico , Distúrbios da Fala/etiologia , Estado Epiléptico/complicações , Estado Epiléptico/psicologia , Adulto Jovem
11.
Epilepsy Behav ; 97: 15-21, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31181424

RESUMO

BACKGROUND: The relation between epilepsy and criminal acts has been debated for over a century. The general perception persists that epileptic seizures can be associated with violent behavior. Some studies have provided evidence for such an association; however, it remains uncertain whether it really exists. This review critically evaluates the scientific literature on the possible relation between epileptic seizures and criminal acts. METHODS: A PubMed search was undertaken using the search terms "epilepsy and crime", "epilepsy and automatism", "epilepsy and law", and "epilepsy and dyscontrol syndrome" with the aim of identifying studies examining the possible association between epileptic seizure and crime. RESULTS: The combined keywords "epilepsy and crime" yielded 495 articles, the keywords "epilepsy and automatism" 402 results, the keywords "epilepsy and law" 969 articles, and the keywords "epilepsy and dyscontrol syndrome" resulted in 22 search results. After removing publications such as reviews and opinion pieces, we identified and analyzed a total of 24 research articles with relevant original data. These included single case reports. The reviewed literature suggests that there are very rare occasions when criminal acts are committed during the ictal or postictal period, mostly by patients with focal epilepsy. CONCLUSION: The literature on the relation between epileptic seizures and criminal acts is not conclusive. Behavioral disturbances often seem more closely related to comorbidities of epilepsy than particular seizures characteristics. These comorbidities are often not well-described. There is an urgent need for more systematic and detailed data gathering and reporting, in order to allow a more detailed investigation of the relation between epileptic seizures and criminal acts.


Assuntos
Crime/estatística & dados numéricos , Epilepsia/complicações , Convulsões/complicações , Adulto , Agressão/psicologia , Automatismo , Humanos , Comportamento Problema/psicologia
12.
Bull Exp Biol Med ; 168(2): 300-303, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31776950

RESUMO

Phenotypical study was carried out in rats with pendulum movements. The animals exhibited a high level of abortive seizures in response to audiogenic stimuli and longer postictal catalepsy in comparison with those in Wistar population. Seizure severity positively correlated with the duration of poststimulus catalepsy (r=0.90). High aggressiveness towards humans, the absence of BP elevation in stress, lower body weights, and lower weights of the kidneys and spleen in PM rats are considered concomitant traits. Correlations were detected between startle-1 and BP in rats with pendulum movements (r=0.70) and between startle-10 and BP in narcotized Wistar rats (r=-0.0.71). The newly described signs in rats with pendulum movements did not contradict the signs of the focal seizure model with typical automatisms in humans.


Assuntos
Automatismo/fisiopatologia , Reflexo de Sobressalto/fisiologia , Convulsões/patologia , Estimulação Acústica , Animais , Pressão Sanguínea/fisiologia , Catalepsia/fisiopatologia , Rim/fisiopatologia , Movimento/fisiologia , Ratos , Ratos Wistar , Baço/fisiopatologia
13.
Epilepsy Behav ; 87: 46-58, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30173017

RESUMO

During seizures, a myriad of clinical manifestations may occur. The analysis of these signs, known as seizure semiology, gives clues to the underlying cerebral networks involved. When patients with drug-resistant epilepsy are monitored to assess their suitability for epilepsy surgery, semiology is a vital component to the presurgical evaluation. Specific patterns of facial movements, head motions, limb posturing and articulations, and hand and finger automatisms may be useful in distinguishing between mesial temporal lobe epilepsy (MTLE) and extratemporal lobe epilepsy (ETLE). However, this analysis is time-consuming and dependent on clinical experience and training. Given this limitation, an automated analysis of semiological patterns, i.e., detection, quantification, and recognition of body movement patterns, has the potential to help increase the diagnostic precision of localization. While a few single modal quantitative approaches are available to assess seizure semiology, the automated quantification of patients' behavior across multiple modalities has seen limited advances in the literature. This is largely due to multiple complicated variables commonly encountered in the clinical setting, such as analyzing subtle physical movements when the patient is covered or room lighting is inadequate. Semiology encompasses the stepwise/temporal progression of signs that is reflective of the integration of connected neuronal networks. Thus, single signs in isolation are far less informative. Taking this into account, here, we describe a novel modular, hierarchical, multimodal system that aims to detect and quantify semiologic signs recorded in 2D monitoring videos. Our approach can jointly learn semiologic features from facial, body, and hand motions based on computer vision and deep learning architectures. A dataset collected from an Australian quaternary referral epilepsy unit analyzing 161 seizures arising from the temporal (n = 90) and extratemporal (n = 71) brain regions has been used in our system to quantitatively classify these types of epilepsy according to the semiology detected. A leave-one-subject-out (LOSO) cross-validation of semiological patterns from the face, body, and hands reached classification accuracies ranging between 12% and 83.4%, 41.2% and 80.1%, and 32.8% and 69.3%, respectively. The proposed hierarchical multimodal system is a potential stepping-stone towards developing a fully automated semiology analysis system to support the assessment of epilepsy.


Assuntos
Automatismo/fisiopatologia , Aprendizado Profundo , Epilepsia do Lobo Temporal/diagnóstico , Epilepsia/diagnóstico , Face/fisiopatologia , Mãos/fisiopatologia , Movimento/fisiologia , Monitorização Neurofisiológica/métodos , Convulsões/diagnóstico , Fenômenos Biomecânicos , Conjuntos de Dados como Assunto , Humanos
14.
Epilepsy Behav ; 80: 84-89, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29414563

RESUMO

OBJECTIVES: Genital automatisms (GAs) are uncommon clinical phenomena of focal seizures. They are defined as repeated fondling, grabbing, or scratching of the genitals. The aim of this study was to determine the lateralizing and localizing value and associated clinical characteristics of GAs. METHODS: Three hundred thirteen consecutive patients with drug-resistant seizures who were referred to our tertiary center for presurgical evaluation between 2009 and 2016 were investigated. The incidence of specific kinds of behavior, clinical semiology, associated symptoms/signs with corresponding ictal electroencephalography (EEG) findings, and their potential role in seizure localization and lateralization were evaluated. RESULTS: Fifteen (4.8%) of 313 patients had GAs. Genital automatisms were identified in 19 (16.4%) of a total 116 seizures. Genital automatisms were observed to occur more often in men than in women (M/F: 10/5). Nine of fifteen patients (60%) had temporal lobe epilepsy (right/left: 4/5) and three (20%) had frontal lobe epilepsy (right/left: 1/2), whereas the remaining two patients could not be classified. One patient was diagnosed as having Rasmussen encephalitis. Genital automatisms were ipsilateral to epileptic focus in 12 patients and contralateral in only one patient according to ictal-interictal EEG and neuroimaging findings. Epileptic focus could not be lateralized in the last 2 patients. Genital automatisms were associated with unilateral hand automatisms such as postictal nose wiping or manual automatisms in 13 (86.7%) of 15 and contralateral dystonia was seen in 6 patients. All patients had amnesia of the performance of GAs. CONCLUSION: Genital automatisms are more frequent in seizures originating from the temporal lobe, and they can also be seen in frontal lobe seizures. Genital automatisms seem to have a high lateralizing value to the ipsilateral hemisphere and are mostly concordant with other unilateral hand automatisms. Men exhibit GAs more often than women.


Assuntos
Automatismo/fisiopatologia , Epilepsia Resistente a Medicamentos , Epilepsias Parciais/tratamento farmacológico , Epilepsias Parciais/fisiopatologia , Genitália/fisiopatologia , Convulsões/diagnóstico , Adolescente , Adulto , Amnésia/epidemiologia , Automatismo/diagnóstico , Distonia/epidemiologia , Eletroencefalografia , Epilepsias Parciais/diagnóstico , Epilepsia do Lobo Frontal/diagnóstico , Epilepsia do Lobo Temporal/cirurgia , Feminino , Lobo Frontal/patologia , Lobo Frontal/fisiopatologia , Lateralidade Funcional/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Lobo Temporal/patologia , Lobo Temporal/fisiopatologia , Turquia/epidemiologia
15.
Epilepsy Behav ; 80: 11-14, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29396356

RESUMO

Ictal automatism with preserved responsiveness (APR) has been reported, particularly in nondominant temporal lobe epilepsy (TLE), but its pathophysiology remains poorly understood. This study sought to investigate the relationship between APRs and increased cerebral blood flow (CBF) using ictal single photon emission computed tomography (SPECT) in TLE. Forty-seven subjects with right mesial TLE (15 with and 32 without APR) were enrolled. Patients with APR (APR+) were subdivided into four groups according to degree of responsiveness during seizures. Cerebral blood flow changes during these seizures were semiquantitatively assessed by subtraction ictal SPECT coregistered to MRI (SISCOM). Hyperperfusion in temporal regions did not vary significantly between the APR+ and APR- groups. Cerebral blood flow changes in the frontal area, insula, cingulum, and occipital area were also nonsignificant. However, hyperperfusion in the ipsilateral parietal areas was more frequent in the APR- group than in the APR+ group. Furthermore, hyperperfusion of the contralateral basal ganglia showed an inclination to be more common in the APR- group, but without statistical significance. The study suggested that the involvement of the parietal association cortex during seizure may play an important role in ictal loss of consciousness in TLE. Further studies will be needed to elucidate the pathophysiology of changes in consciousness during temporal lobe seizures.


Assuntos
Gânglios da Base/irrigação sanguínea , Encéfalo/diagnóstico por imagem , Circulação Cerebrovascular/fisiologia , Epilepsia do Lobo Temporal/diagnóstico por imagem , Convulsões/diagnóstico por imagem , Tomografia Computadorizada de Emissão de Fóton Único/métodos , Adulto , Automatismo , Gânglios da Base/diagnóstico por imagem , Gânglios da Base/fisiopatologia , Encéfalo/patologia , Córtex Cerebral/fisiopatologia , Estado de Consciência , Eletroencefalografia , Epilepsia do Lobo Temporal/fisiopatologia , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Convulsões/fisiopatologia , Lobo Temporal/fisiopatologia
16.
Epilepsy Behav ; 78: 52-56, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-29175220

RESUMO

INTRODUCTION: The sign of the cross (SC) is a catholic ritual that has been described as an automatism during the ictal phase in patients with right temporal lobe epilepsy. OBJECTIVE: The study aimed to describe the prevalence of the SC and analyze the characteristics of patients who presented this phenomenon during the video-electroencephalography (VEEG) admission in our Epilepsy department. METHODS: This is a retrospective analysis of 1308 recorded seizures; 14 patients presented the SC during the admission. Seizure semiology, electroencephalography (EEG), etiology, neuroimaging, and surgical findings were analyzed. RESULTS: A prevalence of 1.1% was found, and the sign was not only an ictal finding (21% was postictal) but also exclusive of patients with temporal lobe epilepsy (15% were extratemporal) in contrast to what has been reported so far. The localizing and lateralizing value of the ictal SC was low (sensitivity 75%, specificity 33.3%, positive predictive value 60%, negative predictive value 50% for a right temporal epileptogenic zone (EZ)) compared with other previously described signs. Regardless of the lateralization of the EZ, the sign was always performed with the right hand supporting the hypothesis of a possible learned behavioral automatism. CONCLUSION: The SC is a rare ictal or postictal manifestation that occurs in patients with temporal and extratemporal epilepsies without clear localizing and lateralizing value compared with previously described signs.


Assuntos
Automatismo/etiologia , Encéfalo/diagnóstico por imagem , Eletroencefalografia/métodos , Epilepsia do Lobo Temporal/psicologia , Lateralidade Funcional/fisiologia , Mãos , Movimento/fisiologia , Adulto , Epilepsias Parciais/diagnóstico , Epilepsia do Lobo Temporal/complicações , Epilepsia do Lobo Temporal/fisiopatologia , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Religião , Estudos Retrospectivos , Convulsões , Gravação em Vídeo/métodos , Adulto Jovem
17.
J Exp Child Psychol ; 166: 652-663, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29125951

RESUMO

How long does it take for word reading to become automatic? Does the appearance and development of automaticity differ as a function of orthographic depth (e.g., French vs. English)? These questions were addressed in a longitudinal study of English and French beginning readers. The study focused on automaticity as obligatory processing as measured in the Stroop test. Measures of decoding ability and the Stroop effect were taken at three time points during first grade (and during second grade in the United Kingdom) in 84 children. The study is the first to adjust the classic Stroop effect for inhibition (of distracting colors). The adjusted Stroop effect was zero in the absence of reading ability, and it was found to develop in tandem with decoding ability. After a further control for decoding, no effects of age or orthography were found on the adjusted Stroop measure. The results are in line with theories of the development of whole word recognition that emphasize the importance of the acquisition of the basic orthographic code.


Assuntos
Aptidão , Automatismo , Idioma , Fonética , Leitura , Teste de Stroop , Aprendizagem Verbal , Atenção , Criança , Percepção de Cores , Feminino , Humanos , Inibição Psicológica , Estudos Longitudinais , Masculino , Vocabulário
18.
Memory ; 26(8): 1019-1029, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29457541

RESUMO

Participants who are asked to simulate amnesia for a mock crime have a weaker memory for this event when they have to give up their role as a feigner, than those who are not asked to feign memory loss. According to the source monitoring framework (SMF), this memory-undermining effect of simulating amnesia for a crime would be due to misattribution of the right source of information. However, we know that the content of self-generated information (e.g., feigned version of the crime) might be preserved and recognised over time as a result of elaborative cognitive processing. In the present study, we aimed to contrast these two explanations. We showed participants a mock crime video and we instructed them to either feign amnesia (simulators) or confess the mock crime (confessors). Next, a free recall memory test was administered. After one week, participants were asked to perform a personalised source monitoring task using the autobiographical Implicit Association Test (aIAT). As predicted, we found that simulators were able to discriminate the content of their self-generated feigned story of the crime from the original version. Moreover, simulators were quicker than confessors at the aIAT task. Practical and theoretical implications of our results are discussed.


Assuntos
Amnésia/psicologia , Crime/psicologia , Psiquiatria Legal/métodos , Memória Episódica , Adulto , Automatismo/psicologia , Feminino , Humanos , Masculino , Simulação de Doença/psicologia , Pensamento , Adulto Jovem
19.
Memory ; 26(9): 1181-1190, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29284344

RESUMO

An age-related associative deficit has been described in visual short-term binding memory tasks. However, separate studies have suggested that ageing disrupts relational binding (to associate distinct items or item and context) more than conjunctive binding (to integrate features within an object). The current study directly compared relational and conjunctive binding with a short-term memory task for object-colour associations in 30 young and 30 older adults. Participants studied a number of object-colour associations corresponding to their individual object span level in a relational task in which objects were associated to colour patches and a conjunctive task where colour was integrated into the object. Memory for individual items and for associations was tested with a recognition memory test. Evidence for an age-related associative deficit was observed in the relational binding task, but not in the conjunctive binding task. This differential impact of ageing on relational and conjunctive short-term binding is discussed by reference to two underlying age-related cognitive difficulties: diminished hippocampally dependent binding and attentional resources.


Assuntos
Envelhecimento/psicologia , Hipocampo/fisiologia , Memória de Curto Prazo/fisiologia , Percepção Visual/fisiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Atrofia , Atenção , Automatismo/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos/estatística & dados numéricos , Prática Psicológica , Reconhecimento Psicológico , Adulto Jovem
20.
Epilepsia ; 58(7): 1261-1267, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28464288

RESUMO

OBJECTIVE: It is well known that sleep-related motor seizures can originate from the temporal lobe. However, little is known about the clinical features of minor motor manifestations during sleep in patients with temporal lobe epilepsy. The main objective of our study was to verify the existence of minor motor events during sleep in patients with mesial temporal lobe epilepsy (MTLE) and to define their clinical features and electroencephalography (EEG) correlations. METHODS: We enrolled in the study patients with diagnosis of symptomatic MTLE and a group of healthy controls. All patients and controls underwent long-term video -EEG monitoring, including at least one night of nocturnal sleep. We analyzed all the movements recorded during nocturnal sleep of patients and controls and their electroencephalographic correlations. RESULTS: We analyzed the nocturnal sleep of 15 patients with symptomatic MTLE (8 males and 7 females; mean age ± standard deviation [SD]31.8 ± 14.9 years) and of 15 healthy controls (6 males and 9 females; mean age ± SD 32.8 ± 11.2 years). The analysis of movements during sleep revealed significant differences between groups, with the patients presenting significantly more movements in sleep than healthy controls (56.7 ± 39.2 vs. 15 ± 6.1; p < 0.001) with significant differences regarding oroalimentary automatisms, limb dystonia, straightening movements and gestural automatisms. EEG analysis showed that the proportion of movements preceded by EEG abnormalities was significantly higher in patients than in controls (57.8 ± 35.9 movements vs. 16.6 ± 13.4 movements; p < 0.001). SIGNIFICANCE: The results of our study demonstrated the presence of minor motor events during sleep in patients with MTLE, suggesting an epileptic origin of these episodes. The study of nocturnal sleep in MTLE patients is useful in helping the clinicians in the diagnostic and therapeutic workup of these patients.


Assuntos
Eletroencefalografia , Epilepsia do Lobo Temporal/diagnóstico , Epilepsia do Lobo Temporal/fisiopatologia , Polissonografia , Processamento de Sinais Assistido por Computador , Gravação em Vídeo , Potenciais de Ação/efeitos dos fármacos , Potenciais de Ação/fisiologia , Adolescente , Adulto , Anticonvulsivantes/uso terapêutico , Automatismo/diagnóstico , Automatismo/tratamento farmacológico , Automatismo/fisiopatologia , Mapeamento Encefálico , Dominância Cerebral/efeitos dos fármacos , Dominância Cerebral/fisiologia , Epilepsia do Lobo Temporal/tratamento farmacológico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Atividade Motora/efeitos dos fármacos , Atividade Motora/fisiologia , Lobo Temporal/efeitos dos fármacos , Lobo Temporal/fisiopatologia , Adulto Jovem
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