Dictionary of Biological Psychology
A specific movement resulting from a specific sensory input.
The exact nature of the response is determined by the sensory AFFERENT fibres that are activated by the sensory stimulus and the connections within the brain or SPINAL CORD that the sensory afferents make with MOTOR NEURONS or INTERNEURONS. In the case of the MONOSYNAPTIC STRETCH REFLEX (also known as the knee jerk or tendon tap reflex) these are direct connections, but in the case of all other reflexes there is at least one central interneuron between input and output.
DOUGLAS D.RASMUSSON
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