نتایج جستجو برای: spatial reference memory
تعداد نتایج: 851112 فیلتر نتایج به سال:
اثر تجویز توأم مورفین و ال- آرﮊینین در ناحیه CA3 هیپوکامپ بر یادگیری و حافظه فضایی موشهای صحرایی نر
Background: Learning and memory are the complicated agents of central nervous system that various regions of brain can be involved in these phenomena, especially regions like hippocamp. Various agents like nitric oxide and morphine can influence learning and memory. About the effects of morphine with other components there was not clear reports so in this study the effect of co-administrati...
The spontaneously hypertensive rat (SHR) is an established animal model of ADHD. It has been suggested that ADHD symptoms arise from deficits in executive functions such as working memory, attentional control and decision making. Both ADHD patients and SHRs show deficits in spatial working memory. However, the data on spatial working memory deficits in SHRs are not consistent. It has been sugge...
Introduction: There are evidences showing the role of nitric oxide in the opiate reward properties. The role of nitric oxide signaling pathway as an intracellular mechanism on augmentation of long term potentiation in hippocampal CA1 area of rats is also confirmed. It has been also reported that oral morphine dependence facilitates formation of spatial learning and memory via activation of N...
Background and purpose: Bisphenol A is a synthetic xenoestrogen that is used in large amount to produce polymers (polycarbonates, epoxy resins). It easily cross the blood-brain barrier and is reported to influence the central nervous system especially neurogenesis and synaptic transmission. In this research the effects of chronic administration of bisphenol A on spatial learning and memory in a...
Malathion is one of the commonest type of organophosphate insecticide whose toxicity in human body is mainly considered to result from the induction of oxidative stress. The aim of this study was to investigate the antioxidant effect of Quercetin, a flavonoid compound, on the spatial memory and oxidative stress parameters during Malathion poisoning in male Wistar rats. This study was performed ...
The pivotal role of the hippocampus for spatial memory is well-established. However, while neurophysiological and imaging studies suggest a specialization of the hippocampus for viewpoint-independent or allocentric memory, results from human lesion studies have been less conclusive. It is currently unclear whether disproportionate impairment in allocentric memory tasks reflects impairment of co...
objective(s) diabetes mellitus is associated with disturbances of learning and memory and cognitive functioning. aegle marmelos corr. from rutaceae family is widely used in iranian folk medicine for the treatment of diabetes mellitus. considering the beneficial antidiabetic and antioxidant potential of a. marmelos, this study was conducted to evaluate the effect of oral administration of a. mar...
During a shift of gaze, an object can move along with gaze or stay fixed in the world. To examine the effect of an object's reference frame on spatial working memory, we trained monkeys to memorize locations of visual stimuli as either fixed in the world or fixed to gaze. Each trial consisted of an initial reference frame instruction, followed by a peripheral visual flash, a memory-period gaze ...
hippocampus is essentially involved in learning and memory processes, and is known to be a target for androgen actions. the high density of the androgen receptors in hippocampus shows that there must be some relationship between androgens and memory. androgen effects on spatial memory are complex and contradictory. some evidence suggests a positive correlation between androgens and spatial memo...
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