background:purpose of present study was to investigate whether chronic exposure to zinc fume would affect serum zinc levels, memory, and cognition in zinc fume-exposed workers. methods:in a cross-sectional study, all zinc fume-exposed workers (exposed, n=20) were compared with unexposed workers (reference, n=20) matched for sex and education level in a zinc galvanization factory. the workers we...

the multiple sclerosis (ms) is a chronic disease of cns leads to some dysfunctions including cognitive (working memory), mood (depression) and fatigue. in spite of previous investigations about working memory impairment in patients with ms, there are scare evidences for working memory dysfunction in mild disabled ms patients (edss

introduction: in the present study, the effect of an inducible no synthase (inos) inhibitor, aminoguanidine (ag) on lipopolysaccharide (lps)-induced memory impairment and oxidative stress and inflammation parameters was evaluated. materials and methods: the rats were divided into 5 groups and treated: 1) control (saline), 2) lps (1 mg/kg), 3-5) ag 50, 100 and 150mg/kg 30 min before lps injectio...

objective: working memory is the ability of maintaining and manipulating the required information for operating generalization in future. the aim of the present research is to investigate the effectiveness of neurofeedback therapy on the working memory in children with adhd.  methods: 24 children with adhd who had the required standards to participate in the study were selected by accessible sa...

introduction: exposure to 3, 4- methylenedioxymethamphetamine (mdma) could lead to serotonergic system toxicity in the brain. this system is responsible for learning and memory functions. studies show that mdma causes memory impairment dose-dependently and acutely. the present study was designed to evaluate the chronic and acute effects of mdmd on spatial memory and acquisition of passive avoid...

conclusions ferulago angulata extract, because of its antioxidant activities, is probably capable of removing free radicals and oxidant substances from brain and thus it can improve behavioral disorders in brain hypoperfusion ischemia model. results it was found that the administration of 400 mg/kg hydroalcoholic extract of f. angulate for two weeks after brain hypoperfusion ischemia increased ...

  Numerous studies conducted in laboratory animals and humans indicate that angiotensin converting enzyme inhibitors reinforce memory and learning. In this paper we study the effect of injection of enalapril into the cerebral ventricles on spatial memory of white mice in the double- y maze, following the induction of an Alzheimer- like amnestic model with scopolamine. To estimate the duration o...

background and aim: there is a controversy about cochlear implant usefulness for users since they do not develop speech and language with equal quality. many researchers by controlling demographic and medical variables in this population suggested the contribution of neuro­cognitive factors such as working memory to this variation. the aim of this study was to com­pare working memory capacity b...

the aim of the present study was to evaluate the effect of melatonin as an antioxidant on spatial navigation memory in male diabetic rats. thirty-two male white wistar rats weighing 200 ± 20 g were divided into four groups, randomly: control, melatonin, diabetic and melatonin-treated diabetic. experimental diabetes was induced by intraperitoneal injection of 50 mg kg-1 streptozotocin. melatonin...

objectives: this study investigated the efficacy of working memory training for improving working memory capacity and related auditory stream segregation in auditory processing disorders children. methods: fifteen subjects (9-11 years), clinically diagnosed with auditory processing disorder participated in this non-randomized case-controlled trial. working memory abilities and auditory stream s...