for years, the role of cerebellum was believed to be limited to motor functions. only since almost two decades ago, a new concept about cerebellum and its contribution to non-motor functions including cognition and emotion started to emerged. during the recent years, numerous studies have focused on the cerebellar non-motor functions with their results providing supportive evidence on this view...

Several studies have demonstrated reorganization of cognitive and motor function caused by stroke. This study examined the influence of hypoperfused brain regions, in addition to the area of the infarct itself, on reorganization of the cognitive processes underlying word generation in stroke patients. In addition, we also sought to determine the influence of hypoperfusion on the blood oxygen le...

objective: the purpose of this research was to study the cognitive functions in patients with methamphetamine-induced psychosis (mip) in comparison with schizophrenia patients and normal subjects. method: this was a cross-sectional study, 30 patients with mip, 30 patients with schizophrenia and 30 normal individuals were selected via convenient sampling and were matched on age, sex and educatio...

introduction: executive functions, including inhibition and flexibility are important for many of human behavior. hence, emphasis has led to interventions to improved executive function. the aim of this study was examination of impact of cognitive inhibition training on flexibility performance of student with learning disability. materials and methods: the design of this study was a pretest-pos...

Objectives: This study examines the neural mechanisms that mediate the relationship between phosphatidylcholine and executive functions in cognitively intact older adults. We hypothesized that higher plasma levels of phosphatidylcholine are associated with better performance on a particular component of the executive functions, namely cognitive flexibility, and that this relationship is mediate...

Cognitive neuroscience prefers a reductionist approach to normal and abnormal brain functions. So, it tries to reducing causes and indices of cognitive and neural processes, in order to increases the accuracy in investigation and manipulation of variables. As a comparison, common diagnostic criteria for mental disorders utilize multidimensional global criteria that existence of some non-overlap...

Anxiety disorders, especially panic disorder, are the prevalent psychiatric disorders. Given the high prevalence of this disorder (1.5 to 5 percent of the population), significant impact on quality of life and dysfunctional cognitions during panic attacks and cognitive functions, the present study examined the efficacy of cognitive behavioral therapy on improvement of cognitive functions patien...

Static and dynamic contrast sensitivity (SCS and DCS), semantic object identification, and verbal recall functions were evaluated in 20 Alzheimer's disease (AD) patients and in 20 control subjects. We found general SCS and DCS loss in the 0.48-14.34 c deg-1 spatial frequency range. In relation to the cognitive functions, semantic object identification was intact, whereas explicit memory was mar...

Cognitive deficits in brain tumors are generally thought to be relatively mild and non-specific, although recent evidence challenges this notion. One possibility is that cognitive screening tools are being used to assess cognitive functions but their sensitivity to detect cognitive impairment may be limited. For improved sensitivity to recognize mild and/or focal cognitive deficits in brain tum...