Dissociation refers to the chemical process in which molecules or ionic compounds break down into smaller components such as atoms, ions, or radicals, usually in a reversible manner. In psychology, it denotes changes in states of consciousness, as investigated by Morton Prince, who associated it with multiple personality, and W.H.R.
Rivers, who focused on alternate states of awareness. Helen Schucman described it as a choice to forget, while Millais Culpin related it to subconscious processes within spiritualism. The concept links chemistry and psychopathology, emphasizing its dual significance in both physical and mental phenomena.