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A method of analysing the responses of spindle primary endings to fusimotor stimulation
Author(s) -
Bessou P.,
Laporte Y.,
Pagès B.
Publication year - 1968
Publication title -
the journal of physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.802
H-Index - 240
eISSN - 1469-7793
pISSN - 0022-3751
DOI - 10.1113/jphysiol.1968.sp008492
Subject(s) - stimulus (psychology) , stimulation , oscilloscope , muscle spindle , superposition principle , impulse (physics) , neuroscience , physics , chemistry , anatomy , communication , biology , psychology , voltage , classical mechanics , quantum mechanics , afferent , psychotherapist
1. The superposition of records of ‘instantaneous’ frequency of discharge of spindle primary endings after stimulation of single fusimotor fibres leads to the construction of graphs called ‘frequencygrams’. 2. The superposition is made on the screen of a storage oscilloscope, the time base of which is synchronized with the stimulus. It is essential that the stimulus be delivered at all possible intervals with respect to the impulse of the resting discharge which precedes it. 3. Frequencygrams obtained by stimulating some static fusimotor fibres by single stimuli display a response with a fast rising phase, a pause, and a slower decreasing phase. 4. Frequencygrams may give some information on the time course of the contraction of intrafusal muscle fibres elicited by stimulating their motor axons.