Neuropsychological frontal impairments and negative symptoms in schizophrenia.

Negative symptoms have been associated with frontal lobe dysfunction in schizophrenia. However, neuropsychological studies that evaluated the correlation between performance in tests sensitive to the dorsolateral prefrontal cortex (DLPFC) and negative symptoms have shown inconsistent results. Growing evidence has appeared that not only the DLPFC but other prefrontal regions could be involved in schizophrenia.

Economic impact of dementia in developing countries: an evaluation of costs of Alzheimer-type dementia in Argentina.

Background: There is no previous information about economic costs of Alzheimer's disease (AD) in South America. The objective of this study was to evaluate the costs of AD in Argentina.

Methods: Eighty community-dwelling patients, 20 institutionalized AD patients and their respective primary caregivers, and 25 healthy elderly subjects participated in this study.

Neuropsychiatric symptoms as a predictor of caregiver burden in Alzheimer's disease.

Aims: Patients with Alzheimer's disease need assistance and supervision of their daily activities. They survive for protracted periods of time, placing an extensive burden of care on the caregiver prior to the patient's death. The present study addressed the predictive value of behavior-related burden on Alzheimer's disease caregivers.

[Cognition in dysthymia].

Unlabelled: Depression is named as one of the most prevalent Mental Health problem, affecting almost 10 % of the population. According to Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) different subtypes are included. Dysthymic Disorder is characterized by a depressed mood for most of the day, for more days than not, as indicated either by subjective account or observation by others, for at least 2 years.

[Neuropsychological tools for the study of depression].

Depression is a common disorder, affecting approximately one in ten of the population at some time in their lives. The nature and extent of such changes, however, is less clear, and their specificity to mood disorder, their existence before the onset of affective symptoms, their etiology and their relation ship to underlying neuroanatomical abnormalities remain poorly understood. Our objective is to present a comprehensive review of the existing neuropsychological literature on bipolar affective disorder, mayor depression and the differential diagnosis between geriatric depression and the depression as early symptom of Alzheimer's disease.