Aggressive Display in the Siamese Fighting Fish (Betta Splendens)
At moderate levels of deprivation (48 and 120 hr) for both rewards, each of four Siamese fighting fish chose the response which produced their mirror image more frequently than the response which produced food. At the highest deprivation level employed (240 hr), however, the preference was reversed. Experiment 2 showed that fish preferred to respond for the opportunity to display when their choice responses did not also produce a brief electric shock, in contrast to previous results with a non-choice procedure. Experiment 3 extended the generality of Adler and Hogan's (1963) finding that shock suppresses aggressive display and also showed that non-contingent shock was ineffective in producing suppression.
Fantino, E., Weigele, S., & Lancy, D. (1972). Aggressive Display in the Siamese Fighting Fish (Betta Splendens). Learning and Motivation, 3, 457-468.