I disagree with Ross about the location of colors: They are in the brain, n
ot in the external world. It is difficult to deny that there are colors in
our conscious visual experience, and if we take the causal theory of percep
tion seriously, we cannot identify these colors with the beginning of the c
ausal chain in perception (external objects in the distal stimulus field),
but we must search for them at the end of the causal chain (in the brain).
Several lines of compelling evidence from cognitive neuroscience (e.g., syn
esthesia, dreaming, and achromatopsia) demonstrate unambiguously that color
is in the brain. Furthermore, it seems that Ross has failed to consider on
e substantial version of subjectivism in his article. This monistic approac
h to color and consciousness appears to be the least implausible alternativ
e when we try to understand what colors are and where they reside. (C) 2001
Academic Press.