Time-place learning in the cichlid angelfish, Pterophyllum scalare.
The ability of the cichlid angelfish, Pterophyllum scalare, to associate time and place to locate food, provided twice a day in two different places, was tested. Food was delivered daily in one corner of the tank in the morning and in the diagonally opposite corner in the afternoon, for a 3-week period, and the distribution of the fish in the tank was noted prior to and during feeding time. The results indicate that, in a fairly uniform environment and in the absence of external time cues, angelfish can discriminate and associate time and place to obtain a food reward. It is suggested that they do so by means of an endogenous timing mechanism.
Gómez-Laplaza
Luis M
LM
Departmento de Psicología, Universidad de Oviedo, 33003 Oviedo, Spain. lmgomez@uniovi.es
Morgan
Elfed
E
D000818:Animals; D023681:Cichlids; D004193:Discrimination Learning; D005247:Feeding Behavior; D013998:Time Perception; D014796:Visual Perception