Impairment of Muscle Stretch Reflexes in Tick Paralysis

See allHide authors and affiliations

Science  07 Oct 1960:
Vol. 132, Issue 3432, pp. 958-959
DOI: 10.1126/science.132.3432.958


Experiments with tick-paralyzed dogs and woodchucks have shown impairment of stretch reflexes in addition to partial paralysis at the neuromuscular junction. Stretch reflexes disappear very early during paralysis, whereas nociceptive reflexes do not appear to be directly affected. The early incoordination and the ascending nature of the paralysis may be related to impairment of stretch reflex pathways.