نتایج جستجو برای: learning and memory
تعداد نتایج: 16977360 فیلتر نتایج به سال:
Introduction: Synaptic plasticity has been suggested as the primary physiological mechanism underlying memory formation. Many experimental approaches have been used to investigate whether the mechanisms underlying long-term potentiation (LTP) are activated during learning. Nevertheless, little evidence states that hippocampal-dependent learning triggers synaptic plasticity. In this study, we in...
Introduction: The brain renin-angiotensin system (RAS) has been reported having a pathological role in age-related impairment in learning and memory. Therefore, angiotensin converting enzyme inhibitors (ACEi) are expected to have positive effects on memory. Longtime treatment with captopril (an angiotensin converting enzyme inhibitor) significantly attenuates the age-related impairment in learn...
melissa officinalis l. (labiatae) traditionally used in treating neurological disorders has also been identified as a memory-enhancing herb. the extract of m. officinalis has a cholinergic property. the role of basal forebrain cholinergic neurons, the neurons that are destroyed in alzheimer’s disease (ad), in learning and memory, is also well known. the aim of this study is to investigate the r...
Abstract Background and Objective: Alzheimer’s disease (AD) is a weakening neurodegenerative disorder typified by increased b-amyloid (Ab) deposition and neuronal dysfunction causing to impaired learning and memory. Among proposed risk factors, induced oxidative stress is a main cause for incidence of the disease. The aim of this study was to determine the effects of the rosmarinic acid on lear...
background and aim: although recent research has revealed the positive effects of bilingualism on children's cognitive abilities, little information is available on the relationship between bilingualism and working memory. working memory is generally composed of four distinct parts, among which the phonological loop plays an important role in speech and language development, reading skills, ...
Background: Many studies have shown that zinc has an important effect on learning, memory and cognition. On the other hand, ovariectomy in adult female rats reduces memory and learning. Also, regarding the contradictory reports on the effects of zinc chloride on memory and learning, this study aimed to examine the effect of zinc chloride on passive avoidance memory of ovariectomized female rats...
the purpose of this study was to examine the comparative effect of story retelling and role playing on efl learners’ vocabulary learning and reading comprehension. to carry out the purpose of the study 90 female learners of tabarestan language school located in noshahr were non-randomly selected. they took pet test and among these 90 participants 62 students were selected as homogenous learners...
iranian traditional medicine (itm) describes a kind of dementia with similar signs and symptoms of alzheimer’s disease (ad). it explains the pathology of dementia with cold intemperament of the brain, which means that the brain is colder than its healthy form. itm strategy for treatment of dementia is to heat the brain up by medical “hot” herbs. nepeta menthoides (nm) is one of these “hot” herb...
this study was conducted to investigate the impact of portfolio assessment as a process-oriented assessment mechanism on iranian efl students’ english writing and its subskills of focus, elaboration, organization, conventions, and vocabulary. out of ninety juniors majoring in english literature and translation at the university of isfahan, sixty one of them who were at the same level of writing...
the present study set out (a) to examine the categories of pedagogical knowledge related to the act of teaching of novice and experienced teachers as gleaned from their verbal report of what they were thinking about while teaching and (b) to compare the categories of pedagogical knowledge of novice and experienced teachers. the aim of comparing these two groups of teachers was to see whether di...
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