FURTHER STUDY OF INVOLUNTARY MOVEMENTS. 637 



it.* In either way we have an extremely simple means of obtain- 

 ing records of involuntary movements, which any one interested 



Fig. 2. Counting Metronome, w* Upper line, movements of head ; lower line, of hand on 

 automatograph ; time, 45 seconds. The head movements are reversed, but have been 

 again reversed for readier comparison. Figs. 2 to 11 are all obtained upon the same sub- 

 ject. The arrows indicate the direction in which the object attended to was situated. 



may construct and test for himself. The use of such a device 

 is not confined to the hand ; the plate or the rod may be fixed to 

 other portions of the body. 



Having shown that the hand moves toward the direction of 

 one's thoughts, the next 

 important step is to deter- 

 mine whether this move- 

 ment is altogether the ex- 

 pression of the subject's 

 mental activity, and, if 

 not, what other factors 



Fig. 3. Counting Metronome. Facing m^-. Automatograph, sitting. I, <- ; time, 105 

 seconds. II, #- ; time, 45 seconds. 



contribute to it ; and, further, in what part or parts of the body 

 it originates, what are its components, and the like. These move- 

 ments have a close connection with the body as well as with the 



* It is to be noted that in this case the record will be in a direction the opposite of the 

 real movement. 



