[Skip to Content]
[Skip to Content Landing]
Other
November 1934

THE PREMOTOR AREAITS RELATION TO SPASTICITY AND FLACCIDITY IN MAN

Author Affiliations

NEW YORK

From the Neuropathological Laboratory, Montefiore Hospital.

Arch NeurPsych. 1934;32(5):963-972. doi:10.1001/archneurpsyc.1934.02250110051004
Abstract

Recent experimental investigations have demonstrated that the cortical motor zone may be divided physiologically into two areas: the anterior or premotor area, corresponding to area 6 of Brodmann and area F B of von Economo, and the posterior or the motor area, corresponding to area 4 of Brodmann and F A of von Economo (fig. 1). In their experiments with cortical ablation in primates, Kennard and Fulton1 observed that a lesion restricted to area 4 resulted in a contralateral flaccid hemiplegia. Spasticity appeared only when area 6 was removed. These investigators concluded that in primates spasticity is present after the premotor area has been ablated and fails to appear if the area remains intact. Subsequently Kennard, Viets and Fulton2 reported a case in which a cystic astrocytoma restricted to the right premotor area and in the vicinity of the arm and leg led to focal seizures of the

×