A system of practical medicine . the palsy is identical in itsgeneral characters with the diplegic form, except that it is limited to thelegs. The separation of these two types will ]3robably be some dayshown to be unjustifiable. Both are of bilateral cerebral origin, andthe differences between them are ]3robably only of degree. From thefrequency of athetosis, of exaggeration of tendon activity, and of otherindications of irritation in the motor tracts to the upper extremities, it ^ A Study of Cerebral Palsies of Early Life, based upon an analysis of 140 cases,Journ. of Nerv. and Ment. Bis., M


A system of practical medicine . the palsy is identical in itsgeneral characters with the diplegic form, except that it is limited to thelegs. The separation of these two types will ]3robably be some dayshown to be unjustifiable. Both are of bilateral cerebral origin, andthe differences between them are ]3robably only of degree. From thefrequency of athetosis, of exaggeration of tendon activity, and of otherindications of irritation in the motor tracts to the upper extremities, it ^ A Study of Cerebral Palsies of Early Life, based upon an analysis of 140 cases,Journ. of Nerv. and Ment. Bis., May, 1890. - These were chosen from a series of 105 cases, of which the others were intellectuallynormal. 876 IDIOCY AND IMBECILITY. is entirely reasonable to assume that in many eases of so-called cerebralparaplegia the hands and arms were at one time involved, but recoveredsufficiently to give especial prominence to the affection in the legs. Asin diplegia, so in these cases, the condition is usually congenital and the Fig. Diplegic idiot (Incurables Hospital). mental symptoms are frequent and pronounced. As regards physicalsymptoms, there are asymmetries and deformities of the skull, retarda-tion of gro^vth in the limbs and various stigmata degencrationifi. Thecontractures in the legs are extreme, spasmodic crossing of the legs andtalipes cquinus being especially conspicuous. As in diplegia, epilepsy isless frccjuent than when the paralysis is limited to one side. JJpilcptio Idiocy.—Inasmuch as the cases of idiocy, imbecility, orfeeljle-mindedncss which are complicated by epilepsy differ in essentialparticulars from those in which recurring convulsions are absent, somemention must be made of them as a class, even at the risk of repeatingwhat has already ])een said concerning the other forms. E])ilepsy occurs in idiocy in three ]irinci])al ways : 1. Asa complication of some gross focal lesion which at the sametime produces paralysis. This is the form observed in jxaraly


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