The use of brief isolation to suppress delusional and hallucinatory speech

Isolation of 15 min duration (time-out, TO) was used to consequate the delusional and hallucinatory speech of a 33-yr-old female, chronic psychotic impatient. Delusional speech was defined as saying any one of 30 false statements; hallucinatory speech was defined as saying any audible verbalization to an unobservable stimulus. Delusional speech was recorded during two different types of conversations: six daily 5 min conversations conducted in …