The Journal of Neuroscience, November 1, 2002, 22(21):9618-9625
Perception of Brightness and Brightness Illusions in the
Macaque Monkey
Xin
Huang,
Sean P.
MacEvoy, and
Michael A.
Paradiso
Department of Neuroscience, Brown University, Providence, Rhode
Island 02912
Recent physiological studies show that neural responses correlated
with the perception of brightness are found in cortical area V1 but not
earlier in the visual pathway (Kayama et al., 1979; Reid and Shapley,
1989; Squatrito et al., 1990; Komatsu et al., 1996; Rossi et al., 1996;
MacEvoy et al., 1998; Rossi and Paradiso, 1999; Hung et al., 2001;
Kinoshita and Komatsu, 2001; MacEvoy and Paradiso, 2001). However,
these studies are based on comparisons of neural responses in animals
with brightness perception in humans. Very little is known about the
perception of brightness in animals typically used in physiological
experiments. In this study, we quantify brightness discrimination,
brightness induction, and White's effect in macaque monkeys. The
results show that, qualitatively and quantitatively, the perception of brightness in macaques and humans is quite similar. This similarity may
be an indication of common underlying neural computations in the two species.
Key words:
brightness; brightness perception; color perception; surface perception; macaque; visual illusion
Copyright © 2002 Society for Neuroscience 0270-6474/02/22219618-08$05.00/0
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