Electro-physiology (1896-98) Electro-physiology electrophysiolog02bied Year: 1896-98 FIG. 197.—Abductor muscle of the crayfish claw (tonic); stimulation with constant currents of increasing intensity; augmented inhibition as primary effect of excitation. Time-marking in seconds. in the other, brings out the striking dissimilarity, that each single stimulus now produces double action. But while in the adductor muscle excitation invariably precedes inhibition, the contrary occurs in the abductor. At the moment of closing the exciting circuit, excitation (contraction) in the one case, inhibition
Electro-physiology (1896-98) Electro-physiology electrophysiolog02bied Year: 1896-98 FIG. 197.—Abductor muscle of the crayfish claw (tonic); stimulation with constant currents of increasing intensity; augmented inhibition as primary effect of excitation. Time-marking in seconds. in the other, brings out the striking dissimilarity, that each single stimulus now produces double action. But while in the adductor muscle excitation invariably precedes inhibition, the contrary occurs in the abductor. At the moment of closing the exciting circuit, excitation (contraction) in the one case, inhibition (relaxation) in the other, makes a delayed entrance, and must in each case be regarded as the primary effect of the current. As in the adductor muscle the consequent excitation seems, at its first appearance, to be merely indicated, as an independent constituent of the curve, so the same holds good of the effects of inhibition, with indirect excitation of the abductor muscle.
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