Catalepsy.—"An intermittent neurosis producing inability to change the position of a limb, while another person can place the muscles in a state of flexion or contraction as he will." (Tuke's Dictionary of Psychological Medicine.)
Centre of Consciousness.—The place where a percipient imagines himself to be. The point of view from which he seems to himself to be surveying some phantasmal scene.
Chromatism.—See Secondary Sensations.
Clair-audience.—The sensation of hearing an internal (but in some way veridical) voice.
Clairvoyance (Lucidité).—The faculty or act of perceiving, as though visually, with some coincidental truth, some distant scene.
Cænesthesia.—That consensus or agreement of many organic sensations which is a fundamental element in our conception of personal identity.
Control.—This word is used of the intelligence which purports to communicate messages which are written or uttered by the automatist, sensitive or medium.
*Cosmopathic.—Open to the access of supernormal knowledge or emotion.
Cryptomnesia.—Submerged or subliminal memory of events forgotten by the supraliminal self.