Data Archive of the Animal
Cognition Lab
Catalog Number: 0005
Title: Spatial navigation on the radial maze with trial-unique intramaze cues and restricted extramaze cues
Reference: Babb, S.J. & Crystal, J.D. (2003). Spatial navigation on the radial maze with trial-unique intramaze cues and restricted extramaze cues. Behavioural Processes, 64, 103-111.
Note: These data were reported as Experiment 1 by Babb & Crystal (2003). Training was conducted in sessions 36-45. Randomized blocks of testing mixed with training were conducted in sessions 46-69 (rotation tests were conducted on 56, 60, 64, and 66; non-rewarded control tests were conducted on sessions 49, 52, 62, and 68; all other sessions were baseline training; a programming error occurred on session 46). Testing with orientation controls was conducted on sessions 168-172 (probe testing was conducted on session 172).
ABSTRACT
We investigated the use of extramaze and intramaze cues on 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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Last updated 26 August 2003
