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Spatial navigation on the radial maze with trial-unique intramaze cues and restricted extramaze cues

by (Stephanie Jean), 1979- Babb

Abstract (Summary)
The present study investigated the role of extramaze and intramaze cues on performance in the eight-arm radial maze. The rats received daily training consisting of forced-choice visits to four baited arms, a retention interval, and the availability of all eight arms with baits available at arms that did not appear in the forced-choice phase. The radial maze was placed in a featureless octagonal enclosure to minimize the availability of extramaze cues. Intramaze cues were provided at the distal end of each arm by placing a small object in front of the food trough; unique objects were randomly sampled from a large pool of objects. The use of extramaze and intramaze cues was assessed by rotating the objects, after the retention interval, on occasional non-rewarded probes, thereby dissociating the location of extramaze and intramaze cues. The rats used extramaze rather than intramaze cues. Implications for spatial representations are discussed.
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School:The University of Georgia

School Location:USA - Georgia

Source Type:Master's Thesis

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