The Sensory Channels
As discussed in Chapter 1, the mechanism for transmission of information concerning a specific modality or submodality of sensation can be called a sensory channel. A sensory channel would include a set of sensory receptors, spinal cord processing circuits, one or more spinal cord sensory pathways, and the parts of the brain (including the thalamus and cerebral cortex) that then use the information to produce perception. This chapter will consider what is known or can be deduced about the initial parts of the sensory channels for sensations arising from the body. Emphasis will be on evidence derived from experiments on monkeys and on human subjects.
KeywordsReceptive Field Afferent Fiber Dorsal Column Glabrous Skin Pacinian Corpuscle
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