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FACILITATION OF THE KNEE JERK AS A FUNCTION OF THE INTERVAL BETWEEN AUDITORY AND STRETCHING STIMULI
Author(s) -
Beale Darryl K.
Publication year - 1971
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.1971.tb00483.x
Subject(s) - jerk , psychology , audiology , reflex , facilitation , jaw jerk reflex , interval (graph theory) , auditory stimuli , stimulation , neuroscience , perception , physics , medicine , mathematics , classical mechanics , acceleration , combinatorics
An experiment was conducted to investigate the temporal relationship between auditory and tendon stimulation in the knee jerk stretch reflex of normal human S s. At each of 20 different ISIs 5 knee jerks were elicited. Results from the 4 S s showed a two peaked relationship between ISI and reflex response, the first peak occurring at 100 msec ISI and the second at 500 msec ISI. It was concluded that the first peak was the result of a summation of the tonal and stretching effect in the cord, and the second was a result of these effects via the gamma system.