Williams, Alexander Coxe (Jr.) <br/><br/>
Some Psychological Correlates of the Electroencephalogram 

 - New York :   R. S. Woodworth,   1939. 
 - 48 p. ;   18 cm. 
 - Archives of Psychology ;   240 .
<br/><br/> Depression and facilitation of the Alpha rythm resulting from stimulation, attention, and change in general psychological state.