نتایج جستجو برای: short term memory reaction tim
تعداد نتایج: 1493321 فیلتر نتایج به سال:
Introduction: There have been many studies conducted on the effects of mobile phones radiations on people’s health due to increasing number of mobile phones users. The present study aimed to investigate the effects of electromagnetic waves generated from 3G and 4G mobile phone radiations on student’s reaction time and short-term memory. <stro...
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),...
Abstract Background: Diabetes is a common disease that is characterized by hyperglycemia or High blood sugar. Central neuropathic is one of the most common Diabetic complications.The increase of blood sugar levels can cause adverse effects on cognitive functions such as information processing speed, memory, and the learning. The aim of this study was to assess short term memory function in pa...
Introduction: Previous studies have shown that exercise enhances cognitive and functional capacities in patients with Alzheimer's disease (AD). In this study, we investigated the effect of long-term (60 days) and short- term (10 days) exercise on the spatial memory deficits in an animal model of AD. Methods: Fifty male rats were divided into 5 groups 1) intact, 2) sham, 3) sham-Alzheimer 4) ...
از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...
Background and Objectives: Tooth extraction is one of the ways to treat dental diseases. The aim of this study was to determine the effect of different molar tooth extraction patterns on short-term and middle-term memory in rats. Materials and Methods: In this experimental study, 45 male Wistar rats were divided into three groups: control group (C) without pulling, pulling group 1 (E1) by pull...
the study of the relationship between memory and achievement motivation with gender and academic achievement of students of urmia medical sciences university feizi pour h [1] *, farjah gh [2] , qaderneghad m [3] received: 9 nov , 2011 accepted: 21 jan , 2012 abstract background & aims : memory gives possibility to mental life of human including thoughts, perceptions, opinions, and...
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)...
در بسیاری از کاربردها مسئله زمان عاملی تعیین کننده است، به طوری که خروجی سیستم در هر لحظه تابعی از ورودی سیستم و نیز خروجی سیستم در زمان های قبل می باشد. در بعضی موارد، خروجی سیستم حتی ممکن است به ورودی سیستم در زمان های قبل هم بستگی داشته باشد. برای مدل کردن چنین سیستم هایی به وسیله شبکه های عصبی، بازنمایی زمان در عملکرد این شبکه ها اجتناب ناپذیر است. زمان به دو صورت در عملکرد شبکه های عصبی قا...
background: this study assessed the relationship between working memory capacity and auditory stream segregation by using the concurrent minimum audible angle in children with a diagnosed auditory processing disorder (apd). methods: the participants in this cross-sectional, comparative study were 20 typically developing children and 15 children with a diagnosed apd (age, 9–11 years) according t...
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