Learning sets in marmosets.

Object-discrimination learning set and hypothesis behavior in the northern bluejay (Cynaocitta cristata)

“…Mean Trial 2 performance during the last problem block of the experiment was 73% correct. This result is quite similar to that found in mynas, as well as terminal Trial 2 performance in squirrel monkeys (Miles, 1957) and marmosets (Miles & Meyer, 1956). …”

Comparative Investigation of the Relationship between Cerebral Indices and Learning Abilities

“…Since learning rates have been previously mentioned as appropriate measures for species comparisons [24,35], the slope of LS curves from chance to asymptotic performance was used. The slopes were calculated from published data, with the hypothetical starting point of 0 trials, 50% correct trial 2 responses; or chance.…”

Learning Set Formation in Slow Lorises (Nycticebus coucang)

“…Comparison of trial 2 learning set performance with the data for simian and prosimian species. The curves of a human child and a chimpanzee are from Hayes et al [1953], that of a gorilla is from Fischer [1962], those of rhesus monkeys and mangabeys are from Behar [1962], that of Japanese monkeys is from Yagi and Furusaka [1973], those of spider, cebus and squirrel monkeys (2) are from Shell and Riopelle [1958], that of squirrel monkeys (1) is from Miles [1957], that of marmosets is from Miles and Meyer [1956], that of black lemurs is from Cooper [1974] and that of tree shrews is from Leonard et al [1966]. visual discrimination learning under the same conditions as those of the learning set experiment.…”

“…Only a few reports have been published on discrimination learning set in pro simian species; one is on common tree shrews (Tupaia glis), as reported by Leonard et al [1966], and the other, by Cooper [1974], is on black lemurs (Lemur macaco). The performance of the tree shrews is inferior to that of the marmosets (Callithrix jacchus) [Miles and Meyer, 1956], which perfor mance was the lowest in the simian species. On the contrary, black lemurs show an unexpected high performance which equals that of macaques.…”