Nine stumptail monkeys (Macaca speciosa) were trained on a successive discrimination learning set where each 2-choice problem was in the paradigm: AA, go Left—BB, go Right. Each S was given 5 unique 8-trial problems a day for 150 days. For half of the animals, the A and B objects did not differ in color; for the other half, color cues were always present and relevant. Significant inter-problem learning was found, but improvement with practice was very slow. The group of monkeys which could use color as a cue did not form the learning set any more efficiently than the group forced to rely on cues other than color.
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References
1.
BeckC. H.WarrenJ. M.SternerR.Overtraining and reversal learning by cats and rhesus monkeys. J. comp. physiol. Psychol., 1966, 62, 332–335.
2.
Chang-YitR. H.The effects of environmental and stimulus object novelty on the behavior of young monkeys. Unpublished doctoral dissertation, Univer. of South Dakota, 1968.
3.
DavisR. T.Feeding schedules and performance on detours. Percept. mot. Skills, 1967, 24, 1025–1026.
4.
DavisR. T.MastersH. G.TjomslandJ.Perception by monkeys: I. Psychophysical judgments of brightness by human and sub-human Ss. Percept. mot. Skills, 1965, 20, 637–645.
5.
DraperW. G.Cue dominance in oddity discriminations by rhesus monkeys. J. comp. physiol. Psychol., 1965, 60, 140–141.
6.
HarlowH. F.Learning set and error factor theory. In KochS. (Ed.), Psychology: A study of a science. Vol. 2. New York: McGraw-Hill, 1959. Pp. 492–537.
7.
HarrisA. V.Perception of the horizontal-vertical illusion by stumptail monkeys. Unpublished M.A. thesis, Univer. of South Dakota, 1966.
8.
LovejoyE.Attention in discrimination learning. San Francisco: Holden-Day, 1968.
MilesR. C.Discrimination-learning sets. In SchrierA. M.HarlowH. F.StollnitzF. (Eds.), Behavior of nonhuman primates: Modern research trends. New York: Academic Press, 1965. Pp. 51–95.
11.
WarrenJ. M.Additivity of cues in discrimination learning by primates. J. comp. physiol. Psychol., 1953, 46, 484–486.
12.
WarrenJ. M.Perceptual dominance in discrimination learning by primates. J. comp. physiol. Psychol., 1954, 47, 290–292.
13.
WarrenJ. M.Solution of sign-differentiated object and positional discriminations. J. genet. Psychol., 1960, 96, 365–369.
