Asymmetric perception of radial expansion/contraction in Japanese macaque
(Macaca fuscata) infants.
Shirai, N. Imura, T., Hattori, Y., Adachi, I., Ichihara, S., Kanazawa, S., Yamaguchi, M. K., & Tomonaga, M.
radial expansion/contraction motion provides important visual information
that is used to control several adaptive actions. We investigated radial
motion perception in infant Japanese macaque monkeys using an experimental
procedure previously developed for human infants. We found that the infant
monkeys’ visual preference for the radial expansion pattern was
greater than that for the radial contraction pattern. This trend towards
an "expansion bias" is similar to that observed in human
infants. These results suggest that asymmetrical radial motion processing
is a basic visual function common to primates, and that it emerges early
Experimental Brain Research, (2010) 202, 319–325.APR/06/2010
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