objective: memory impairment is one of the most pervasive cognitive dysfunctions in schizophrenic patients. the aim of the current study was to conduct the most comprehensive assessment of how prospective memory (pm) is affected in schizophrenia in comparison with healthy controls. methods: in this study, 30 first-episode schizophrenic patients who fulfilled the diagnostic criteria of the diagn...

Working memory deficiency has been implicated in developmental disorders of scholastic skills. The auditory P50 component of event-related potentials reflecting preattentive processing was investigated in 38 children with developmental disorders of scholastic skills and 19 sibling control children, as elicited during a working memory test. The P50 was evoked by two tones of low and high frequen...

common variable immunodeficiency (cvid) is a heterogeneous group of disorders, characterized by hypogammaglobulinemia and increased susceptibility to recurrent infections, autoimmunity and malignancies. we have previously shown that some pediatric patients with cvid can respond to meningococcal polysaccharide vaccine. twelve pediatric cases with cvid were re-evaluated to determine whether bacte...

Background: Cognitive impairment is a common symptom in both Schizophrenia (SZ) and Bipolar Disorder (BD), and studies have demonstrated memory impairment in patients with these disorders. Objectives: To compare memory impairment in patients with SZ, BD with psychosis, and BD without psychosis. Materials & Methods: This study was a cross-sectional study conducted on 42 patients referred to Sh...

In fact alcohol is a toxic substance that has a direct effect on brain. Some of the most common mental disorders due to alcohol abuse are: Memory disorder: Hazardous amounts of alcohol may cause intoxication, impairment of memory so that the person who took a drunken accident may not remember the event. Periods of memory impairment in those with a history of alcohol addiction would also happen ...

Overgeneral autobiographical memory seems to be a stable cognitive marker in depressed adults and may predict persistence of depression. This study investigated whether depressive disorders in children are associated with overgeneral memory. Sixty children (ages 9 to 13 years) participated; 15 were diagnosed with lifetime depressive disorder, 25 had other lifetime psychiatric disorders, and 20 ...

Functional amnesia for autobiographical memory is a rare but pathognomic sign of dissociative disorders. Amnesia for part of one's personal history is sometimes also seen in other functional disorders like depression and schizophrenia but autobiographical amnesia in these disorders is relatively rar . Phenomenologically the autobiographical memory loss, amnesia for events during the amnestic ep...

The study determined the prevalence of sleep disorders by ethnicity and sex, and related daytime functioning, working memory, and mental health among older adolescent to emerging adult college students. Participants were U.S.A. undergraduates (N = 1684), aged 17-25, recruited from 2010 to 2011. Participants completed online questionnaires for all variables. Overall, 36.0% of the sample screened...

Verapamil is a drug that blocks L-type calcium channels and selectively inhibits calcium ion entry into the central and peripheral nervous system cells. Verapamil is used acutely and chronically in treatment of some cardiovascular and central nervous system disorders. It has also been shown that acute administration of verapamil has no significant effect on learning and memory in rats, but the ...