On Oct. 24. 1904, Dr. Alfred Gordon demonstrated before the Philadelphia Neurological Society a new reflex,1 namely, extension of the great toe on pressure or irritation of the deep flexor muscles of the calf of the leg. This he claimed was indicative of the motor tract disturbance, and was called by him the "paradoxic flexor reflex." At this time he remarked on an apparent antagonism between the paradoxic reflex and Babinski's sign. In December of the same year a further contribution on the subject by Dr. Gordon followed, in the form of a paper, with presentation of cases, before the same society.2 At this time he emphasized the importance of the reflex as a sign of diagnostic value, particularly in irritation or early stage of a motor tract lesion.Gordon's next paper,3 read before the same society, cited two cases as anatomic proof of the value
PRICE GE. GORDON'S PARADOXIC FLEXOR REFLEX AND ITS DIAGNOSTIC SIGNIFICANCE. JAMA. 1908;L(2):120–121. doi:10.1001/jama.1908.25310280036004c
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