ABSTRACT
The functioning of the cortical receptive apparatus which corresponds to all the diffuse sensations of the organism, all, that is to say, which are not exclusively concentrated, like sight, hearing, taste or smell, on limited surfaces—and in proportion as they approach the cortex—involves many complex problems. We will approach these problems in the order of increasing difficulty, dealing first with the topography of cortical reception in its relation to the topography of the body, then with the relations of the various types of sensation, and finally with perception, before considering the significance of the receptive functions of the cortex from the standpoint of sensori-motor activity in general.
