نتایج جستجو برای: long memory and leverage effects second

تعداد نتایج: 17208860  

Journal: :physiology and pharmacology 0
haydeh haghighizad dept. physiology, school of medicine, kermanshah university of medical sciences, kermanshah, iran ali pourmotabbed hedayat sahraei mohammad rasoul ghadami sara ghadami mohammad kamalinejad

introduction: it has been reported that acute administration of morphine impairs learning and memory processes in rats. furthermore, recent studies showed that saffron extract improved ethanol-induced impairments of learning behaviors in mice, and also prevented ethanol-induced inhibition of hippocampal long-term potentiation. it can be postulated that there are some common mechanisms responsib...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم تربیتی و روانشناسی 1391

the purpose of this study was to examine the status of supervision on departments’ heads at ferdowsi university of mashhad (fum) and realize some applied themes to provide a fit model for supervising departments’ heads in fum. the method was case study under a research category aimed for applied one. using purposive sampling, interviews were conducted with top fum managers, head departments, an...

Journal: :physiology and pharmacology 0
zohreh valizadeh dept. biology, school of sciences, shahid chamran univ., ahwaz, iran ahmad ali moazedi dept. biology, school of sciences, shahid chamran univ., ahwaz, iran gholamali parham dept. statistics, school of mathematics, shahid chamran univ., ahwaz, iran

introduction: zinc is an essential trace element that plays an important role in synaptic plasticity and modulating the activity of cns and involve in learning and memory. synaptic vesicle zinc in the hippocampus area exerting modulatory effects on nmda glutamate receptor. method: in this experiment the effects of nmda agonist and antagonist administration intra hippocampus on passive avoidance...

Bahram Soltani-Tehrani , Parvin Babaei , Sanaz Vahdati ,

Background: It has been known that Brain-Derived Neurotrophic Factor (BDNF) is involved in neural survival and long term memory (LTM). Here we hypothesized that BDNF as a potent neurotrophic factor might modulate amnestic effect induced by morphine. Objectives: The aim of this study was to examine whether infusion of exogenous BDNF in the CA1 regions of the dorsal hippocampi could ameliorate me...

Maryam Jafarian, Mohamad Esmaiel Alipour,

Modern neuroscientific research help to solve the impotent challenge in curriculum design and teaching for enhancing students’ ability to organize information in a way that makes it efficient in response to an appropriate context such as problem solving and critical thinking via knowing about the mechanism of different type of memories especially long term memory. At first, we should to c...

Introduction: Ethanol can induce a wide spectrum of neurophysiological effects via interaction with multiple neurotransmitter systems and disruption of the balances between inhibitory and excitatory neurotransmitters. Prefrontal cortex is involved in cognitive process including working memory and is sensitive to ethanol. Present study investigates the effects of intraperitoneal (i.p.) admini...

Journal: :Perspectives on psychological science : a journal of the Association for Psychological Science 2013
Benjamin J Levy Anthony D Wagner

Environmental cues often remind us of earlier experiences by triggering the reactivation of memories of events past. Recent evidence suggests that memory reactivation can be observed using functional MRI and that distributed pattern analyses can even provide evidence of reactivation on individual trials. The ability to measure memory reactivation offers unique and powerful leverage on theoretic...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1393

this study aimed at examining the effects of iranian efl learners’ anxiety, ambiguity tolerance, and gender on their preferences for corrective feedback (cf, henceforth). the effects were sought with regard to the necessity, frequency, and timing of cf, types of errors that need to be treated, types of cf, and choice of correctors. seventy-five iranian efl students, twenty-eight males and forty...

The characterization of memory effects in crude oil markets is an interesting issue that has attracted the attention of researchers from different disciplines, from econophysics to more classical economics. The importance of the problem relies in the fact that the departure from uncorrelated behavior would imply the presence of not-random effects which, in principle, can be exploited for arbitr...

Journal: :iranian journal of otorhinolaryngology 0
zahra shahidipour department of audiology, faculty of rehabilitation, tehran university of medical sciences, tehran, iran. ahmad geshani department of audiology, faculty of rehabilitation, tehran university of medical sciences, tehran, iran. zahra jafari rehabilitation research center, faculty of rehabilitation, tehran university of medical sciences, tehran, iran. shohreh jalaie department of statistic, faculty of management, tehran university of medical sciences, tehran, iran. elham khosravifard 4department of audiology, faculty of rehabilitation, shahid beheshti university of medical sciences, tehran iran.

introduction: hearing loss is one of the most common problems in elderly people. functional side effects of hearing loss are various. due to the fact that hearing loss is the common impairment in elderly people; the importance of its possible effects on auditory memory is undeniable. this study aims to focus on the hearing loss effects on auditory memory.   materials and methods: dichotic audit...

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