A Random Process Model of Cognitive Deficit in Schizophrenia

A random process model of cognitive deficit in schizophrenia.

It is argued that in schizophrenic patients the process of selecting responses to incoming stimuli becomes increasingly random the more disturbed the patient is. This is seen as a disordered overextension of normal behavioral flexibility and variability. A model is proposed which considers the range of human behavior to be the result of perceptions of incoming stimuli compared to related analog...

f/sla from learner perspectives: a social activity or a cognitive process

in the past couple of decades sociocultural theory of sla and its implications in efl contexts have attracted attentions of research circles worldwide and aroused some controversies. firth and wagner (1997) have questioned the principles of the cognitive view which gives importance to mental constructs in favor of sociocultural view which highlights social and contextual constructs. but if soci...

Cognitive differences between deficit and non-deficit schizophrenia

Should cognitive deficit be a diagnostic criterion for schizophrenia?

This review examines the question of whether cognitive deficits in schizophrenia are sufficiently reliable, stable and specific to warrant inclusion in the diagnostic criteria for schizophrenia. The literature provides evidence that cognitive deficits are highly prevalent and fairly marked in adult patients with schizophrenia. Similar deficits have been found in children and adolescents with sc...

Focal Injection of Ethidium Bromide as a Simple Model to Study Cognitive Deficit and Its Improvement

Introduction: Memory and cognitive impairments are some of devastating outcomes of Multiple Sclerosis (MS) plaques in hippocampus, the gray matter part of the brain. The present study aimed to evaluate the intrahippocampal injection of Ethidium Bromide (EB) as a simple and focal model to assess cognition and gray matter demyelination. Methods: Thirty Wistar rats were divided into three groups:...