40 ROBERT OGDEN AND SHEPHERD IVORY FRANZ 



present writing the animal appears in all respects to be normal, there 

 having been a continued betterment of the right side since the special 

 exercises on that side were stopped. 



Summary. This animal with hemiplegia was given special exercises 

 with massage and it was compelled to use the paralyzed segments; 

 voluntary ability to move the paralyzed segments returned in twenty- 

 six days, the recovery being present and apparently permanent five 

 months after the operation. 



Experiment 5 



Monkey 3. On June 2, 1916, the left cerebral motor cortex was 

 cauterized as completely as possible. The paralysis was the same 

 as in the previous experiments in that there was an evident complete 

 hemiplegia of the upper neuron type of the whole right side. 



Management and results. The left arm was strapped to the body 

 of the animal so that movements of the paralyzed right side would be 

 necessary for feeding and climbing. No other kind of treatment was 

 given, the animal being permitted to recover " spontaneously." After 

 twenty-six days the amount of recovery was slight. Some movement 

 of the paralyzed arm and leg was possible, but the animal was obviously 

 incompetent on the right side. There was a characteristic wrist drop 

 and there was some atrophy and an extreme weakness of the right arm. 

 The leg was moved more than the arm, but it also was weak and the 

 movements were uncertain and rather gross in nature. This was the 

 condition on June 28, after which time active treatment of the Tight 

 arm and leg was instituted, the treatment consisting in daily muscle 

 and nerve stimulation by vibratory digital means, and in the stimula- 

 tion of the animal by the special method already described. This 

 treatment was continued for four weeks and in that period of time all 

 evidence of the paralysis had disappeared, and the leg and arm had 

 regained their normal power and precision. 



Summary. The normal arm of a paralyzed monkey was restrained 

 but no special treatment of the paralyzed segments was given for a 

 period of about four weeks, and this management did not bring about 

 a return of motor function. During the next four weeks the nerves 

 and muscles were stimulated and the animal was encouraged by speciai 

 stimulations to use the arm and leg. During the second month the 

 treatment brought about a complete return of motor function so that the 

 animal's movements became normal. 



