BACKGROUND As a result of long-term heroin abuse we can see impairment of cerebral structures, that leads to specific psychopathological and neuro - physiological deficits in the cognitive and connative areas. There is a positive correlation between the mentioned deficits and the duration of heroin abuse. The memory is a cognitive function highly sensitive to toxic effects of opiates. The aim o...

We establish sufficient conditions on durations that are stationary with finite variance and memory parameter d ∈ [0, 1/2) to ensure that the corresponding counting process N(t) satisfies VarN(t) ∼ Ct (C > 0) as t → ∞, with the same memory parameter d ∈ [0, 1/2) that was assumed for the durations. Thus, these conditions ensure that the memory in durations propagates to the same memory parameter...

This study examined the effects of long-term lithium therapy on memory functions in 18 patients suffering from bipolar affective disorder. Patients were retested on the Wechsler Memory Scale, Benton Visual Retention Test, and Zung Self-Rating Depression Scale 6 years after initial testing. Mean memory test scores remained remarkably stable over the 6-year interval with only one of the 10 memory...

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...