objective: the aim of present research is to investigate the effects of neurofeedback on cognitive function with emphasis on memory. method: this study is an experimental study. for this reason using a stratified sampling procedure sample of 30 subjects in 2 groups of experimental and placebo was selected. investigated subjects were assessed with the wechsler memory scale in two stages (pretest...

memory is not a single entity. it is a gift of mother nature, the ability of living organisms to retain and to utilize acquired knowl- edge. memory is precisely related to learning, in that memory in biolog- ical systems entails learning and that learning implies retention of such information. memory can be divided into multifaceted systems. the renaissance of encephalon compatible learning app...

“sources of knowledge” is one of the significant topics in contemporary epistemology. epistemologists accept five sources of knowledge: perception, reason, introspection, testimony, and memory. this paper compares introspection, testimony and memory in mulla sadra and descartes’ philosophical systems. the two philosophers accept introspection, testimony and memory as the sources of knowledge. b...

introduction: previous studies have demonstrated that the &beta-adrenergic; receptor antagonist propranolol impairs fear memory reconsolidation in experimental animals. there are experimental parameters such as the age and the strength of memory that can interact with pharmacological manipulations of memory reconsolidation. in this study, we investigated the ability of the age and the strength ...

abstract: introduction: nitric oxide (no) is a retrograde messenger in hippocampal synaptic plasticity which involves in learning and memory processes. previous studies revealed that hippocampal pyramidal cells contain no synthase (nos) enzyme which produce no and could be a promising target to evaluate the role of no in brain cognitive functions. so in this study, using nos inhibitor (l-name),...

growing evidence suggests that serotonin plays an important role in learning and memory and all its receptors might be implicated in this process. the present study aimed at investigating and comparing the possible involvement of 5-ht 3 and 5-ht 4 receptor (r) agonists/antagonists upon consolidation of inhibitory avoidance memory in the pre-limbic (pl) area. bilateral intra-pl microinjections o...

introduction: estrogen is one of the gonadal hormones that has multiple beneficial actions in central nervous system and involves in learning and memory. alzheimer's disease (ad) is a progressive neurodegenerative disorder that impairs patient memory. the human nucleus basalis of meynert (nbm) is severely affected in alzheimer's disease. so in this study the effect of peripheral (intr...

materials and methods in this experimental study, nmri male mice were placed in groups receiving atropine (0.1 and 1 mg/kg), recipient of mgo-n (1, 2.5, and 5 mg/kg) and groups receiving atropine in effective dose and different doses of mgo-n were used. saline was used as a vehicle for drugs in the control groups. memory was evaluated with a step-down apparatus to determine the coming down late...

objective: the present study aimed to compare prospective and retrospective memory impairment and attention deficit in people suffering from chronic low back pain with those cognitive functions in healthy subjects. furthermore, this study examines the relation between severity and duration of pain and prospective and retrospective memory impairment and attention deficit. methods: the research w...