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1.
Neurol Sci ; 34 Suppl 1: S61-6, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23695048

RESUMO

Psychiatric disorders in migraine patients have a higher prevalence than general population. The presence of psychiatric comorbidities may influence the complexity of the migraine pictures and be related to medication overuse. Severely impaired chronic migraineurs presenting with medication overuse are a challenge for headache clinics. Psychiatric comorbities, such as dependency-like behaviors, anxiety and mood symptoms, might account for headache-related disability and recurrent relapses into medication overuse after a successful detoxification. Within a sample of 63 chronic migraineurs with medication overuse and severe disability, we investigated to which extent clinical severity, affective states and attitudes about medication impact the overall functioning at time of detoxification. To unravel whether some of these factors could predict their long-term outcome, we followed and retest them 1 year after withdrawal. We hypothesized that the detoxification would have led to a partial improvement and not modified the attitudes toward medication and dependence. Detoxification improves most of the clinical and affective measures, but does not free from significant levels of pain intensity and headache-related disability. The partial benefit from detoxification, the severity bias and the maladaptive cognitive profile led us to believe that subgroups of chronic-relapsing migraineurs deserve a multidisciplinary approach that addresses not only the reduction of clinical severity but also specific cognitive and behavioral impairments.


Assuntos
Transtornos de Enxaqueca/psicologia , Adulto , Idoso , Analgésicos/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos de Enxaqueca/tratamento farmacológico , Testes Neuropsicológicos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Adulto Jovem
2.
Psychiatry Res ; 321: 115068, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36724649

RESUMO

An influence of the Covid-19 pandemic on First Episode Psychosis (FEP) has been hypothesized. We previously reported an increase of FEP during the early stages of the pandemic in Milan, Italy. Here we report a 1-year follow-up of the same cohort and comparison with a FEP cohort from 2019. The higher proportion of non-chronic psychoses observed during the pandemic (58.62% in 2020 vs 43,75% in 2019) should be confirmed in larger cohorts over a longer follow-up period.


Assuntos
COVID-19 , Transtornos Psicóticos , Humanos , Pandemias , Seguimentos , Transtornos Psicóticos/diagnóstico , Itália , Teste para COVID-19
3.
Neurol Sci ; 33 Suppl 1: S151-5, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22644192

RESUMO

Patients with chronic migraine developing medication-overuse headache (MOH) show dependency-like behaviors such as loss of control over analgesics despite adverse consequences on headaches, high rates of relapse after withdrawal from symptomatic medications, and compromised social functioning. Neuroimaging research suggests a common pathophysiology between substance-use disorders and MOH, which involves functional alterations in fronto-striatal networks, particularly in the orbitofrontal region of prefrontal cortex. These findings could explain the impaired decision-making observed in substance-use disorders. We hypothesize that MOH could share fronto-striatal circuit dysfunction and relative decision-making deficit with addiction. We further examine whether this deficit is a persistent cognitive trait or a reversible consequence of medication overuse. This study shows a dataset of 50 patients with MOH before the detoxification. All patients underwent a complete neurological and psychiatric examination. Psychiatric examination consisted of a clinical interview, Structured Clinical Interview for DSM-IV TR Axis II Personality Disorders, Anxiety and Depression Hamilton Scales, Severity of Dependence Scale. The neurological examination included the migraine disability assessment questionnaire. Neuropsychological assessment of fronto-striatal circuits was investigated using the Iowa gambling task (IGT). Twenty patients monitored for any relapse into medication overuse had 12 months of follow-up. Our sample, characterized by high rates of disability and dependency-like behaviors, exhibited a deficit in IGT performance, indicating an overall impairment in decision-making. All the 20 patients showed neurological and psychiatric improvement at 12-month follow-up, notwithstanding the overuse relapse, but a persistent IGT deficit was found. To our knowledge this is the first study that assesses this cognitive function in patients with MOH. Medication-overuse headache seems to share a persistent decision-making deficit with substance abuse that confirms the orbitofrontal cortex hypometabolism described in literature from a neuropsychological perspective. Looking at these shared neurocognitive features, our results suggest that MOH could belong to the addiction spectrum. Fronto-striatal dysfunction could be a premorbid psychobiological condition of vulnerability explaining the clinical onset of medication overuse and recurrent relapses. We propose that IGT could be used to identify chronic migraine patients with higher risk for medication overuse and relapse.


Assuntos
Tomada de Decisões , Transtornos da Cefaleia Secundários/psicologia , Transtornos de Enxaqueca/psicologia , Adulto , Idoso , Doença Crônica , Tomada de Decisões/fisiologia , Feminino , Seguimentos , Transtornos da Cefaleia Secundários/tratamento farmacológico , Transtornos da Cefaleia Secundários/fisiopatologia , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Transtornos de Enxaqueca/tratamento farmacológico , Transtornos de Enxaqueca/fisiopatologia , Medição da Dor/métodos , Medição da Dor/psicologia , Inquéritos e Questionários , Triptaminas/uso terapêutico , Adulto Jovem
4.
Intern Emerg Med ; 17(3): 777-787, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34677790

RESUMO

Anorexia Nervosa is one of the most common form of eating disorders. Cardiac involvement occurs in approximately 80% of patients. Few reports focused on the association between body weight fluctuations and echocardiographic abnormalities, considering linear measurements. We describe echocardiographic and clinical features among male and female patients with anorexia nervosa and the effect of weight gain on these parameters. We performed a single center, retrospective study of patients followed at a dedicated multidisciplinary Unit. The study population consisted of 81 patients, mean age 25 ± 11 years, 94% female. Median body mass index was 14.4 kg/m2 (25th-75th percentile 12.7-15.6 kg/m2). Patients with body mass index below the median value had more often pericardial effusion, smaller left ventricular mass and left ventricular end-diastolic volume and thinner interventricular septum. However, when indexed to body surface area, left ventricular mass and volumes were within the normal range in 90% of population. Patients with pericardial effusion showed mitral valve abnormalities and lower values of white blood cells and platelets, although within normal limits. Presence of pericardial effusion was not related to inflammatory parameters or low plasma protein levels. In 39 patients who displayed weight gain during a median follow-up of 189 days (25th-75th percentile 47-471), increased left ventricular mass, interventricular septum thickness, white blood cells and platelet count and decreased pericardial effusion were observed. Patients with anorexia nervosa have a specific echocardiographic pattern which seems to be proportional to the body size, suggesting a pathophysiological adaptation to the lack of substrates.


Assuntos
Anorexia Nervosa , Derrame Pericárdico , Adolescente , Adulto , Anorexia Nervosa/complicações , Ecocardiografia , Feminino , Humanos , Masculino , Estudos Retrospectivos , Aumento de Peso , Adulto Jovem
5.
Neurol Sci ; 32 Suppl 1: S81-3, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21533719

RESUMO

Screening of headache patients for psychiatric disorders is needed, because of the well-known high rates of comorbidity with depression and anxiety. Screening for both depression and anxiety is highly advisable in order to identify subjects who need psychiatric consultation and therapy. Screening tools for depression and anxiety range from informal questions to self-report instruments to structured interviews and the choice is up to the clinician and the setting of the clinical evaluation. Data on psychiatric disorders and medication overuse are till now not consistent. The treatment of mood and anxiety disorders in headache patients needs to take into account the possible drug interactions with headache therapies. The collaboration between neurologists and consultation-liaison psychiatrists helps the identification of headache patients who need a psychiatric therapeutic program and follow-up.


Assuntos
Ansiedade/epidemiologia , Depressão/epidemiologia , Cefaleia/psicologia , Psiquiatria , Encaminhamento e Consulta , Comorbidade , Cefaleia/epidemiologia , Cefaleia/terapia , Humanos
6.
J Psychosom Res ; 147: 110539, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34091378

RESUMO

OBJECTIVE: The contribution of psychological and psychiatric symptoms in the development of Functional Neurological Disorders (FND) is unclear. We therefore aimed to investigate the role of different attachment styles (AS) and their relationship with psychiatric symptoms in FND patients as compared with both subjects with neurological disorders (ND) and healthy controls (HC); and the possible differences between patients with functional movement disorders (FMD) and with functional seizures. METHODS: In this case-control study, forty-six patients with FND were compared to 34 with ND and 30 HC, by means of an extensive battery to investigate the presence of alexithymia, depression, anxiety, dissociation and to explore their AS using the Revised Experiences in Close Relationships instrument (ECR-R). RESULTS: Patients with FND had higher depression and alexithymia as well as an avoidant pattern on the ECR-R than patients with ND. In the FND group, ECR-R avoidance was an independent predictor of psychiatric symptoms and, altogether, ECR-R avoidance, the somatic-affective component of depression and difficulty identifying feelings were independent predictors of FND. Gender, anxiety and difficulty identifying feelings predicted the presence of functional seizures. CONCLUSION: The avoidant AS may be an important psychological factor influencing the presence of mood disorders and alexithymia. Their co-occurence might drive maladaptive responses underlying the presence of FND. Although we demonstrated a large overlap between FND phenotypes, patients with functional seizures might have higher alexithymia, which in turn could explain a defensive response less anchored to body reactions and physical symptoms.


Assuntos
Sintomas Afetivos , Ansiedade , Transtornos de Ansiedade , Estudos de Casos e Controles , Humanos , Convulsões
7.
Psychiatry Res ; 298: 113802, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33592401

RESUMO

The ongoing Corona Virus Disease 2019 (COVID-19) pandemic appears to increase risk for mental illness, either directly due to inflammation caused by the virus or indirectly due to related psychosocial stress, resulting in the development of both anxious-depressive and psychotic symptoms. The purpose of the present study was to assess the frequency and characteristics of all patients with First Episodes Psychosis (FEP) without COVID-19 infection hospitalized in the first four months since lockdown in Milan. We recruited sixty-two patients hospitalized between March 8 to July 8, 2020 versus those first  hospitalized in the same period in 2019. The two subgroups were compared for sociodemographic variables and clinical characteristics of the episodes. Patients with FEP in 2020 were significantly older than patients with FEP in 2021, and presented with significantly less substances abuse. Interestingly, patients presenting with FEP in 2020 were significantly older than patients with FEP in 2019. These data are compatible with the greater vulnerability to stressful factors during the pandemic, as well as with the greater concern regarding a possible COVID-19 infection producing brain damage causing the FEP.


Assuntos
COVID-19 , Controle de Doenças Transmissíveis , Hospitalização , Transtornos Psicóticos , Adulto , COVID-19/prevenção & controle , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Itália/epidemiologia , Masculino , Transtornos Psicóticos/epidemiologia , Transtornos Psicóticos/etiologia , Transtornos Psicóticos/terapia
8.
Neurol Sci ; 31 Suppl 1: S111-3, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20464598

RESUMO

Comorbidities among headaches and psychiatric disorders have been consistently reported in several clinical studies and reviews. In this paper, we review some recent clinical studies on migraine and tension-type headaches associated with mood, anxiety and somatoform disorders, focusing on therapeutic strategies for the psychiatric disorders.


Assuntos
Transtornos de Ansiedade/epidemiologia , Transtornos da Cefaleia/epidemiologia , Transtornos do Humor/epidemiologia , Comorbidade , Humanos , Prevalência , Qualidade de Vida
9.
Am J Psychiatry ; 150(9): 1411-4, 1993 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-8352354

RESUMO

OBJECTIVE: This study used eye movement tests to examine whether frontal lobe dysfunction is present in delusional disorder. METHOD: Smooth pursuit and voluntary saccadic eye movements of 15 delusional patients, 40 schizophrenic patients, and 40 normal subjects were recorded and analyzed statistically. RESULTS: The schizophrenic patients differed significantly from the normal subjects in some smooth pursuit eye movement characteristics, whereas both the schizophrenic and the delusional patients showed more saccades than the normal subjects during the smooth pursuit test. The delusional patients and normal subjects differed significantly in some voluntary saccadic eye movement characteristics. CONCLUSIONS: The data support the idea of a biological dysfunction in eye tracking in delusional disorder.


Assuntos
Delusões/fisiopatologia , Lobo Frontal/fisiopatologia , Acompanhamento Ocular Uniforme/fisiologia , Movimentos Sacádicos/fisiologia , Esquizofrenia/fisiopatologia , Adulto , Análise de Variância , Delusões/diagnóstico , Diagnóstico Diferencial , Análise Fatorial , Feminino , Lateralidade Funcional , Humanos , Masculino , Tempo de Reação , Esquizofrenia/diagnóstico , Psicologia do Esquizofrênico
10.
J Clin Psychiatry ; 57(8): 364-70, 1996 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-8752020

RESUMO

BACKGROUND: The presence of psychiatric disorders (according to DSM-III-R), the discriminating power of a psychiatric structured interview, and sleep monitoring were investigated in psychophysiological insomnia. METHOD: Forty young (20-40 years old) patients, selected for putative psychophysiological insomnia, underwent a psychiatric structured interview and home ambulatory sleep monitoring for 2 nights. The results were compared with those of a group of nine young normal sleepers. RESULTS: 48% of the insomniacs showed some psychiatric disorders, while 52% did not meet DSM-III-R criteria for a psychiatric diagnosis. Both groups, but not the controls, showed a slight first-night effect in the sleep analysis. The sleep structure of all insomniacs was found to be disturbed, mainly in sleep continuity, but essentially the two groups showed no significant differences. When we used a stepwise logistic regression analysis, the number of sleep stage shifts (indicating sleep instability) was the best variable in discriminating the insomniacs from controls, but not the patients with psychiatric disturbances from those without psychopathologies. CONCLUSION: The evaluation of young insomniacs with a structured psychiatric interview rather than with ambulatory sleep monitoring seems to be most useful in discriminating between patients with only psychophysiological insomnia and patients with both insomnia and an associated diagnosis of another mental disorder.


Assuntos
Transtornos Mentais/diagnóstico , Monitorização Ambulatorial , Polissonografia , Escalas de Graduação Psiquiátrica/estatística & dados numéricos , Transtornos Psicofisiológicos/diagnóstico , Distúrbios do Início e da Manutenção do Sono/diagnóstico , Sono/fisiologia , Adulto , Comorbidade , Feminino , Humanos , Masculino , Transtornos Mentais/epidemiologia , Transtornos Psicofisiológicos/epidemiologia , Distúrbios do Início e da Manutenção do Sono/epidemiologia , Fases do Sono/fisiologia , Sono REM/fisiologia
11.
Schizophr Res ; 10(2): 103-7, 1993 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-8398941

RESUMO

The following report is an evaluation of the performances of 35 schizophrenic patients and 35 of their siblings on the Wisconsin Card Sorting Test (WCST), a neuropsychological test considered sensitive to frontal lobe functioning. Thirty five normal subjects matched for age and education were the comparison group. The purpose of this study was to examine the relationship of the neurofunctional basis for schizophrenia to its familiar occurrence. Non-schizophrenic siblings of schizophrenic patients did not perform significantly different from normal subjects on the WCST; however, schizophrenic patients performed significantly worse than both their siblings and normal subjects. These results indicate that WCST dysfunction seems to be a characteristic related to the presence of the disease and that non-genetic factors could contribute to the WCST pathological profile.


Assuntos
Atenção , Aprendizagem por Discriminação , Testes Neuropsicológicos , Reconhecimento Visual de Modelos , Esquizofrenia/genética , Psicologia do Esquizofrênico , Adulto , Percepção de Cores , Feminino , Humanos , Masculino , Rememoração Mental , Esquizofrenia/diagnóstico
12.
Schizophr Res ; 30(1): 51-8, 1998 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-9542788

RESUMO

This study used eye tracking movement tests to examine the relationships between frontal field functions and clinical features. Smooth pursuit and voluntary saccadic eye movements were recorded and analyzed in 34 delusional disorder (DD) patients and in 40 normal subjects. The DD group differed significantly from the group of normal subjects in some eye tracking performances. As reported in our previous study (Gambini et al., 1993), DD patients showed abnormalities of voluntary saccadic eye movements. In this study, we also found abnormal smooth pursuit eye movements, indicating a cerebral dysfunction similar to those detected in schizophrenic patients. Moreover, normal smooth pursuit eye movement performance in DD patients was related to remitted depressive mood and probably to benefit from antipsychotic medications, thus supporting the idea of the biological and clinical heterogeneity of DD.


Assuntos
Delusões/fisiopatologia , Delusões/psicologia , Lobo Frontal/fisiopatologia , Movimentos Sacádicos/fisiologia , Adulto , Antipsicóticos/farmacologia , Antipsicóticos/uso terapêutico , Delusões/tratamento farmacológico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Movimentos Sacádicos/efeitos dos fármacos , Fatores de Tempo
13.
Schizophr Res ; 5(2): 115-21, 1991 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-1931804

RESUMO

Some level of frontal and callosal dysfunction has been reported in patients with schizophrenia. In the present study 68 normal controls and 117 schizophrenic patients were administered the Wisconsin Card Sorting Test (WCST), which involves the function of the frontal areas, and the Auditory Comprehension Test (ACT) which involves the corpus callosum and to a lesser degree attention and mnesic mechanisms. WCST correctly discriminated 69.8% of schizophrenics and 74.2% of controls, ACT 86.7% of schizophrenics and 90.2% of controls. Moreover, schizophrenics correctly classified by the WCST performed more poorly than schizophrenics incorrectly classified by the WCST on the related ACT indices for the attention and mnesic mechanisms. There were no differences in present age, age at onset, duration of the illness, diagnostic subtype and course of the disease between correctly and incorrectly classified schizophrenics by the WCST and the ACT. These data indicate a prevalent malfunctioning of attention and mnesic mechanisms in schizophrenia. Finally there seems to be no relationship between these neurofunctional abnormalities and demographic and clinical characteristics of the disease.


Assuntos
Corpo Caloso/fisiopatologia , Lobo Frontal/fisiopatologia , Esquizofrenia/fisiopatologia , Psicologia do Esquizofrênico , Adulto , Amnésia/fisiopatologia , Análise de Variância , Atenção/fisiologia , Humanos , Testes Neuropsicológicos , Desempenho Psicomotor/fisiologia
14.
Schizophr Bull ; 25(4): 789-99, 1999.
Artigo em Inglês | MEDLINE | ID: mdl-10667748

RESUMO

Several researchers have underscored the importance of precise characterization of eye-tracking dysfunction (ETD) in patients with schizophrenia. This biological trait appears to be useful in estimating the probability of genetic recombination in an individual, so it may be helpful in linkage studies. This article describes a nonlinear computational model for using ETD to identify schizophrenia. A back-propagation neural network (BPNN) was used to classify schizophrenia patients and normal control subjects on the basis of their eye-tracking performance. Better classification results were obtained with BPNN than with a linear computational model (discriminant analysis): a priori predictions were approximately 80 percent correct. These results suggest, first, that eye-tracking patterns can be useful in distinguishing patients with schizophrenia from a normal comparison group with an accuracy of approximately 80 percent. Second, parallel distributed processing networks are able to detect higher order nonlinear relationships among predictor quantitative measurements of eye-tracking performance.


Assuntos
Redes Neurais de Computação , Movimentos Sacádicos/fisiologia , Esquizofrenia/diagnóstico , Adulto , Antipsicóticos/uso terapêutico , Feminino , Humanos , Masculino , Distribuição Aleatória , Esquizofrenia/tratamento farmacológico
15.
J Affect Disord ; 12(1): 67-71, 1987.
Artigo em Inglês | MEDLINE | ID: mdl-2952697

RESUMO

Performances of 59 affective patients, 59 schizophrenics and 59 normal controls on the Quality Extinction Test (QET), which has been proven to be valuable for detecting abnormal hemisphere functioning in neurological and psychiatric patients, are presented. Frequencies of the left and right extinctions of the affective patients did not exceed those of normal controls. Compared to schizophrenics, fewer affective patients had left and right extinctions and the number of these extinctions was significantly lower in affective patients. These results would indicate that affective patients do not differ from controls relative to lateralized cerebral malfunctioning as measured by the QET. The differences between affective and schizophrenic patients' QET performances may be explained by differences in the course and chronicity of the disease.


Assuntos
Transtorno Bipolar/fisiopatologia , Transtorno Depressivo/fisiopatologia , Dominância Cerebral/fisiologia , Esquizofrenia/fisiopatologia , Tato/fisiologia , Adulto , Discriminação Psicológica/fisiologia , Extinção Psicológica/fisiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos
16.
Biol Psychol ; 24(3): 253-9, 1987 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-3663799

RESUMO

This preliminary study evaluated the simultaneous presence of abnormalities in the regulation of eye-tracking and neuropsychological tests performance (tactile extinction) in a sample of schizophrenic patients. Both those measures of central malfunctioning appears to be quite specific to schizophrenic disorders and more related to the trait, rather than state characteristics. Even though preliminary, the results indicate a significant relationship between abnormalities in SPEM regulation and the distribution of tactile abnormalities, with more left-side extinguishing patients showing abnormal SPEMs. Some interpretations of the findings are given in the context of current hypotheses on the neurofunctional abnormalities of schizophrenics.


Assuntos
Extinção Psicológica , Movimentos Oculares , Transtornos Neurocognitivos/psicologia , Testes Neuropsicológicos , Acompanhamento Ocular Uniforme , Psicologia do Esquizofrênico , Tato , Adolescente , Adulto , Atenção , Dominância Cerebral , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
17.
Psychiatry Res ; 48(3): 191-200, 1993 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-8272442

RESUMO

Smooth pursuit eye movements (SPEMs), voluntary saccadic eye movements (VSEMs), and neuropsychological test (Touluse-Pieron Test and Wisconsin Card Sorting Test) performance were studied in 23 patients with obsessive-compulsive disorder and 27 age-matched normal control subjects. The patients performed more poorly than the control subjects on the SPEM and, to a lesser degree, VSEM measures. They also showed impairment on some aspects of the neuropsychological tests. No relationship was found between eye movement performance and neuropsychological impairment.


Assuntos
Movimentos Oculares/fisiologia , Testes Neuropsicológicos , Transtorno Obsessivo-Compulsivo/diagnóstico , Movimentos Sacádicos/fisiologia , Adulto , Feminino , Fixação Ocular , Humanos , Masculino , Transtorno Obsessivo-Compulsivo/fisiopatologia , Escalas de Graduação Psiquiátrica , Análise e Desempenho de Tarefas
18.
Psychiatry Res ; 32(2): 159-66, 1990 May.
Artigo em Inglês | MEDLINE | ID: mdl-2142310

RESUMO

The assessment of beta-endorphin levels in several symmetrical brain regions of seven suicides and seven sudden death controls reveals a decreased concentration in the left temporal cortex, the left frontal cortex, and the left caudate nucleus of suicides compared to controls. Moreover, the comparisons of beta-endorphin concentrations in the symmetrical brain regions reveals an asymmetrical concentration in suicides (left less than right) in frontal cortex and caudate nucleus. These data confirm previous reports of abnormalities of neurochemical pathways in the brains of suicides and suggest that suicidal behavior might be related to the lateralized mechanisms of mood control.


Assuntos
Encéfalo/patologia , Dominância Cerebral/fisiologia , Suicídio/psicologia , beta-Endorfina/metabolismo , Adulto , Idoso , Núcleo Caudado/patologia , Morte Súbita/patologia , Feminino , Lobo Frontal/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Lobo Temporal/patologia
19.
Psychiatry Res ; 21(4): 293-301, 1987 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-3498178

RESUMO

Smooth pursuit eye movements (SPEM) were examined in 67 schizophrenic patients and 101 control subjects. Our study confirms that eye tracking in schizophrenic patients is impaired compared to that in controls. The similar pattern of distribution of SPEM abnormalities in Italian patients as in ethnically different populations strengthens the hypothesis that these abnormalities may be a biological marker for schizophrenia. We also examined the relationship between SPEM abnormalities and the ventricle-brain ratio (VBR), which is also considered useful for differentiating schizophrenic subgroups. Our preliminary results indicate that there is an inverse correlation between abnormal SPEM performance and ventricular enlargement, suggesting that these abnormalities mark distinct subgroups of patients.


Assuntos
Encéfalo/anatomia & histologia , Ventrículos Cerebrais/anatomia & histologia , Movimentos Oculares , Acompanhamento Ocular Uniforme , Esquizofrenia/fisiopatologia , Adolescente , Adulto , Ventriculografia Cerebral/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Esquizofrenia/classificação , Esquizofrenia/diagnóstico , Tomografia Computadorizada por Raios X
20.
Int J Psychophysiol ; 7(1): 47-54, 1989 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-2925464

RESUMO

Alpha EEG reactivity was assessed in a carefully diagnosed sample of 84 schizophrenic and schizophrenic spectrum disorder patients, both under resting conditions (eyes closed and eyes open) and during two spatial-geometric cognitive tasks. The influence of the subject's demographic (sex and age), clinical (diagnostic subtypes, disease course, CT scan characteristics) and neurophysiological (hemispheric recording and different cognitive tasks) characteristics on alpha peak reactivity was analyzed by means of multivariate analysis of variance. The results indicated a significant effect of type of illness on alpha EEG reactivity, patients with a diagnosis of undifferentiated and disorganized schizophrenia having the lowest alpha reactivity levels. None of the other variables considered had any contributing effect. The results are discussed in terms of orienting responses and hemispheric CNS organization in functional psychoses.


Assuntos
Ritmo alfa , Dominância Cerebral/fisiologia , Eletroencefalografia , Esquizofrenia/fisiopatologia , Psicologia do Esquizofrênico , Adulto , Nível de Alerta/fisiologia , Córtex Cerebral/fisiopatologia , Doença Crônica , Feminino , Humanos , Masculino , Transtornos Neurocognitivos/fisiopatologia
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