P24. Psychology of Monosynaptic T (tendon) and H (Hoffmann) Reflexes (MSR) – History, results and relevance

Soon after monosynaptic reflexes were discovered (Erb 1875, Westphal 1875) studies concerning supraspinal influences including psychophysiological effects were carried out. A survey of methods with some historical illustrations and results of experiments from nearly a century of research is given.Lombard (1887, AmJPsychol, vol. one) was the first to show tonic variations of the 'knee jerk' due to psychophysiological influences, whereas Bowditch and Warren (1890) showed phasic activation with sophisticated techniques, allowing short time registration within the range of 0 to about 2000 ms after different kinds of stimuli.

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