Learning Set Formation in Ring-Tailed Lemurs (Lemur catta)

Following the study on nocturnal slow lorises (Nycticebus coucang), the visual discrimination learning set was tested on diurnal ring-tailed lemurs (Lemur catta) under the almost same experimental condition as on slow lorises. Their performance was significantly higher than that of slow lorises (p < 0.005). And this suggested the importance of interspecific comparison among extensive prosimian species and the necessity of comparative neurological studies relating with learning set formations.