At present, the effects of quercetin liposome on anxiolytic activity and cognitive function are unclearly known. In this study, male Wistar rats were administered quercetin liposome via intranasal route once daily continually for 4 weeks. The anxiolytic activity and cognitive enhancing effect were determined after single administration, 1, 2, 3 and 4 weeks of treatment using elevated plus maze ...

The submerged platform or Morris water escape task is widely used to study genetic variation in spatial learning and memory, but interpretation is sometimes difficult because of wall hugging, jumping off the platform, floating or non-spatial swim strategies. We modified the task by introducing four wide arms into the circular tank and adding features that reduced, eliminated, or compensated for...

Studies using the Morris water maze to assess hippocampal function in animals, in which adult hippocampal neurogenesis had been suppressed, have yielded seemingly contradictory results. Cyclin D2 knockout (Ccnd2(-/-)) mice, for example, have constitutively suppressed adult hippocampal neurogenesis but had no overt phenotype in the water maze. In other paradigms, however, ablation of adult neuro...

Background and Aim: Learning and memory defect occurs following chronic diabetes with uncontrolled blood glucose. Ginkgo leaf extract improves brain blood flow. Also it contains antioxidant components and has shown beneficial effects in neurological diseases. In this study we investigated the effects of Ginkgo leaf extract on spatial memory impairment and hippocampal neuronal loss caused by dia...

Data on the effects of serotonin reuptake inhibitors on learning and memory processes are not consistent. In the present study, the effects of citalopram, a very potent and completely selective inhibitor of the serotonin reuptake on spatial discrimination in the T-maze and Morris water maze, were assessed in mice and/or rats. Animals received different doses of citalopram (1, 2, 4, 8 or 16 mg/k...

This study is aimed at investigating the effects of methylphenidate about search strategy use on the spontaneously hypertensive rat, an animal model of attention-deficit/hyperactivity disorder in the Morris water maze. The methylphenidate group rats were given intraperitoneal injection of methylphenidate (10 mg/kg) dissolved in saline 30 min before daily training for 6 consecutive days. In the ...

................................................................................................. 3 COGNITION AND SOCIAL BEHAVIOUR IN SCHIZOPHRENIA...............................3 TABLE OF CONTENTS............................................................................. 7 ABBREVIATIONS....................................................................................... 9 BACKGROUND..........

The misuse of anabolic androgenic steroids has in several reports been associated with effects resulting in altered behavior. This study used the Morris water maze task to investigate the effect of high doses of the anabolic androgenic steroid nandrolone on spatial learning and memory in male rats. During the experiment, we observed a significantly impaired Morris water maze performance in the ...

The Morris Water Maze is a widely used task in studies of spatial learning with rodents. Classical performance measures of animals in the Morris Water Maze include the escape latency, and the cumulative distance to the platform. Other methods focus on classifying trajectory patterns to stereotypical classes representing different animal strategies. However, these approaches typically consider t...

A quantitative trait locus (QTL) linked with ability to find a platform in the Morris Water Maze (MWM) was located on chromosome 17 (Nav-5 QTL) using intercross between Dahl S and Dahl R rats. We developed two congenic strains, S.R17A and S.R17B introgressing Dahl R-chromosome 17 segments into Dahl S chromosome 17 region spanning putative Nav-5 QTL. Performance analysis of S.R17A, S.R17B and Da...