Landmark Distance Impacts the Overshadowing Effect in Spatial Learning Using a Virtual Water Maze Task with Healthy Adults

被引:2
|
作者
Deery, Roisin [1 ]
Commins, Sean [1 ]
机构
[1] Maynooth Univ, Psychol Dept, Maynooth W23 F2K8, Kildare, Ireland
关键词
cue competition; overshadowing; spatial learning; memory; virtual water maze; COGNITIVE MAPS; NAVIGATION; BLOCKING; HIPPOCAMPUS; GEOMETRY; COMPETITION; EFFICIENCY; SALIENCE; MEMORY; RATS;
D O I
10.3390/brainsci13091287
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Cue competition is a key element of many associative theories of learning. Overshadowing, an important aspect of cue competition, is a phenomenon in which learning about a cue is reduced when it is accompanied by a second cue. Overshadowing has been observed across many domains, but there has been limited investigation of overshadowing in human spatial learning. This experiment explored overshadowing using two landmarks/cues (at different distances to the goal) in a virtual water maze task with young, healthy adult participants. Experiment 1 initially examined whether the cues used were equally salient. Results indicated that both gained equal control over performance. In experiment 2, overshadowing was examined using the two cues from experiment 1. Results indicated that overshadowing occurred during spatial learning and that the near cue controlled searching significantly more than the far cue. Furthermore, the far cue appeared to have been completely ignored, suggesting that learning strategies requiring the least amount of effort were employed by participants. Evidence supporting an associative account of human spatial navigation and the influence of proximal cues was discussed.
引用
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页数:12
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