Abstract
Reports results of 2 experiments with a total of 44 male Siamese fighting fish. In Exp I Ss were given a choice between food and a mirror image in a T maze. All Ss consistently preferred food. In Exp II the choice of Ss that lived in the T maze for the duration of the experiment was compared with the choice of Ss that were transferred to the T maze for each experimental session. Ss that lived in the T maze consistently preferred food, but Ss that were transferred showed a shift in preference toward mirror image. Differential inhibition of hunger and aggression by fear is suggested as the cause of the preference shift.
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