Mapping of open-field behavior in rats and integration of various independent study results.
Open field behavior of four treatment groups was plotted on a map by factor scores which were derived from principal component analysis. The treatment consisted of electric shock, extensive stroking, testing under a very dim-light condition, or testing after habituation to the field. Five measures were used: ambulation, penetration into the inner square, rearing, defecation, and urination. The first two principal components accounted for 93% of the total variance in the data. By using the four treatment groups for reference, the manner in which results of independent studies can be plotted on a map, and how the interpretation of results can be facilitated, were demonstrated with some examples. A table composed of scores of eta squared for the four groups was also presented for reference and to facilitate integration of the results of various independent studies.
D000818:Animals; D001522:Behavior, Animal; D004597:Electroshock; D004644:Emotions / Q000502:physiology; D005010:Ethology / Q000379:methods*; D006185:Habituation, Psychophysiologic; D006234:Handling, Psychological; D008027:Light; D008297:Male; D051381:Rats; D011916:Rats, Inbred F344