Like the physiologist concerned with theoretical problems, the clinician dealing with the pathology of sense organs is no longer able to separate the function of the receptor apparatus from its cerebral representation. Sensory information is received, transmitted, and processed by a functional unit which consists of receptors (e.g., the retina or the organ of Corti in the inner ear), sensory nerve pathways, and cerebral neurons. This apparatus has been called “analyzer” by Pavlov, referring to its stimulus-analyzing function. Before dealing with the groups of central nerve cells having a sensory role in the psychological sense, let us briefly describe the general characteristics of peripheral receptor function.
KeywordsNerve Fiber Sense Organ Nervous Impulse Alpha Rhythm Axon Membrane
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