Journal
JOURNAL OF COMPARATIVE PSYCHOLOGY
Volume 120, Issue 4, Pages 378-388Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/0735-7036.120.4.378
Keywords
individual differences; cognition; acquisition; mice
Funding
- National Science Foundation Grants [BCS-0116089, IBN-0344514]
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Two experiments examined the structure of individual differences in mice by means of tasks that produced significant acquisition within 1 session. In Experiment 1, 5 cognitive tasks-detour, winshift, olfactory discrimination, fear conditioning, and operant acquisition-were used in conjunction with two control procedures: an open field and a light-dark test. In Experiment 2, some modifications were made to the tasks used in the 1st experiment, and 3 new tasks were used in conjunction with the same control procedures. The battery consisted of 5 learning tasks: detour, Hebb-Williams, radial maze, olfactory foraging, and fear conditioning. Results of both experiments indicate that when cognitive tasks and control procedures were included in principal-components analyses most of the variance attached principally to individual tasks rather than to a general component as is found typically in human cognitive batteries. When control procedures were eliminated, there was better evidence for the presence of a general cognitive factor, particularly in Experiment 2.
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