ABSTRACT
Introduction: Cognitive tasks are considered to be applicable and appropriate in assessing cognitive domains. The purpose of our study is to determine the relationship existence between variables of age, sex and education with selective, sustained attention and planning abilities by means of computerized cognitive tasks among healthy adults. Methods: A cross-sectional study was implemented during 6 months from June to November, 2010 on 84 healthy adults [42 male and 42 female]. The whol participants performed computerized CPT, STROOP and TOL tests after being content and trained. Results: The obtained data indicate that there is a significant correlation coefficient between age, sex and education variables [p<0.05]. Discussion: The above-mentioned tests can be used to assess selective, sustained attention and planning
ABSTRACT
Objective: Cogntive deficits have received much attention over the past two decades. In this article, the role of cholinergic, dopaminergic, adrenergic, serotoninergic and gabaergic neurotransmitters in cognitive behavior is reviewed
Method: This is a review article
Results and Conclusion: The involvement of cholinegric system in memory and pathological states such as dementia, is a replicated finding. However, the function of this system cannot completely explain the cognitive processes of learning and memory. Several animal studies have explored the role of different neurotransmitter systems on learning and memory. Any decrease or increase in levels of the neurotransmitters or activation or blockade of relevant receptors may alter learning and memory. It seems that a network consisting of different neurotransmitter systems may be important for learning and memory processing