Inquire about purchasing the book | Table of Contents | Annotated Bibliography | Class on Nature of Mind
These are excerpts and elaborations from my book "The Nature of Consciousness"
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Perception And Sensation A sensory input undergoes a
long series of transformations before leading to a "sensation". Its
features are extracted as it is channeled through the brain. Information about its location is isolated
early in this process and kept separate from the features. Different regions of cells in the cortex
process different features. As the
sensory information travels through these regions, each region extracts some
feature. For example, one of the most
complex sensory inputs is the one that comes from the retina. The component
about the location is isolated and routed elsewhere, while information about
the sensory input (e.g., the texture, size, color, shape of an image) is still
traveling together in one chunk (this produces, for example, the sensation and
emotion of the whole image). The
location component follows, instead, a completely different path. "What" and "where" are
processed separately and in parallel. Back to the beginning of the chapter "Inside The Brain" | Back to the index of all chapters |
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