35 
Number of strokes during disturbance in percentage of these in rest. 
Percentage | Percentage Percentage | Percentage | Percentage | Percentage 
of strokes. | of strokes. | of strokes. | of strokes. | of strokes. | of strokes. 
Squeezing. | Leg pressure. Squeezing. | Legpressure.| Squeezing. ‚Leg pressure. 
92.1 AE Rr 97.4 91.8 98.8 
92.1 Borer EE sone wins Ree 95.1 
93.7 97.0 4.9 | 92.6 | 89.4 95.3 
95.2 95.5 93.9 89.8 BIT 93.8 
93.1 95.2 92.8 | 97.5 | 93.8 95.1 
94.2 ENE 93.1 95.2 94.0 
93.1 91.9 94.0 | 96.4 | 90.8 91.9 
94.2 96.1 88.5 87.8 | 94.0 91.9 
94.7 89.2 86.5 91.0 | 89.3 | 96.4 
From the experiments it is apparent that no disturbing influence 
on the stroke test reveals itself in the pressure, which is practically 
always constant. On the other hand there is a marked disturbance 
in the number of strokes, and the left hand pressure constantly - 
causes a more distinct disturbance than the leg pressure. 
Moreover the stroke test causes a distinct inhibition on the squeezing 
of the dynamometer and on the foot pressure. The irregularity and 
the slow decline of the curve show this clearly. (See figures). 
LY, 
Fig. I. Foot pressure on dynamom. Fig. IL. Foot pressure on dynamom. 
during stroke test. apart from stroke test. 
Further it was investigated to what extent a simultaneous, con- 
tinous exertion of the left hand inhibits the squeezing effect of the 
right hand. It appears that the will-impulse from the left hand in- 
fluences inhibitorily the squeezing effect of the right hand, when 
the former keeps in equilibrium a weight of 8 kg., which can be 
moved up and down over a pulley. The dynamometer was squeezed 
five times at intervals of 15 seconds each. At first the dynamometer 
was squeezed without disturbing influences, then with disturbing 
influences, and after a quarter of an hour the experiment was 
3* 
