نتایج جستجو برای: maze
تعداد نتایج: 10731 فیلتر نتایج به سال:
The present experiment was designed to determine the extent to which two different mechanisms were responsible for the recovery of function produced by grafts of fetal basal forebrain tissue into the hippocampus of rats given fimbria-fornix lesions. The place fields of single units in the hippocampus were recorded as rats moved about a radial arm maze. Two measures of the discriminative stimuli...
OBJECTIVE Although maze-related surgical procedures have shown success at eliminating atrial fibrillation, published controlled studies have generally been too small to detect clinically significant differences in morbidity and mortality. We pooled available studies to determine whether a simultaneous maze procedure reduces the risk of stroke or death in patients with chronic or paroxysmal atri...
Fragments of beta-endorphin and amphetamine cause similar effects in some tests of maze behavior in rats. The present study served to compare the influence of amphetamine and two beta-endorphin fragments [beta-endorphin (beta E)-(2-9) and beta E-(2-16)] on maze behavior in more detail. In Experiment I no significant effects of amphetamine and the peptides on behavioral performance in three sele...
This article reviews reported results about the effects of drugs that act upon the serotonergic neurotransmission measured in three elevated mazes that are animal models of anxiety. A bibliographic search has been performed in MEDLINE using different combinations of the key words X-maze, plus-maze, T-maze, serotonin and 5-HT, present in the title and/or the abstract, with no time limit. From th...
An important function of many organisms is the ability to use contextual information in order to increase the probability of achieving goals. For example, a street address has a particular meaning only in the context of the city it is in. In this paper, predisposing conditions that influence future outcomes are learned by a goal-seeking neural network called Mona. A maze problem is used as a co...
We investigate the computational complexity of two maze problems, namely rolling block and Alice mazes. Simply speaking, in the former game one has to roll blocks through a maze, ending in a particular game situation, and in the latter one, one has to move tokens of variable speed through a maze following some prescribed directions. It turns out that when the number of blocks or the number of t...
Reptiles utilize a variety of environmental cues to inform and drive animal behavior such as chemical scent trails produced by food or conspecifics. Decrypting the scent-trailing vertebrates, particularly invasive species, enables discovery that induce exploratory can aid in development valuable basic applied biological tools. However, pinpointing behaviors dominantly driven versus other compet...
We sought to determine how a visual maze is mentally solved. Human subjects (N = 13) viewed mazes with orthogonal, unbranched paths; each subject solved 200-600 mazes in any specific experiment below. There were four to six openings at the perimeter of the maze, of which four were labeled: one was the entry point and the remainder were potential exits marked by Arabic numerals. Starting at the ...
it cannot be removed from the board except at the ends of the course. This makes the test practically "fool proof" and eliminates all necessity for negative instructions. An entire series of these tests is being devised and standardized. This article, as a preliminary statement, is confined to a report on the use of the first of the series, Slot Maze A, in testing 1304 children ranging in age f...
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