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Full-Text Articles in Animal Studies
The Effects Of Crowding, Density, And The Duration Of Each On Learning, Richard A. Neetz
The Effects Of Crowding, Density, And The Duration Of Each On Learning, Richard A. Neetz
Masters Theses
Ninety-six male albino rats were housed from weaning in groups of 4, 8, or 16 animals. For all group sizes, animals were housed either in cages of a constant size (crowding) or in cages with floor space proportional to group size (density). Six animals from each of these conditions were tested for learning after either 55 or 109 days on a straight alley, a Lashley III maze, and a Y-maze. On the straight alley, no significant differences in running speed were found between durations, crowding and density, or group size. A significant trials effect was obtained (F=63.28, df=15/900, p < .01). On the Lashley III, a significant trials effect was obtained for running speed (F=102.27, df=8/480, p < .01) and errors (F=63.80, df=8/480, p < .01). The duration comparison showed the 55 day group making significantly more errors than the 109 day group (F=5.36, df=1/60, p < .05). No significant differences were found on running speed or errors between crowding and density or group size. On the Y-maze, the 55 day group had significantly more avoidances than the 109 day group (F=6.47, df=1/60, p < .05). …
An Attempt To Find Auditory Communication In The Squirrel Monkey Via Cooperative Conditioning, Michael T. Bardo
An Attempt To Find Auditory Communication In The Squirrel Monkey Via Cooperative Conditioning, Michael T. Bardo
Masters Theses
No abstract provided.