Visual pseudohallucinations: psychotherapy case study of a long-standing perceptual disorder.

The case of a woman with severe neurosis, seen in once weekly psychotherapy over a period of 3 years, illustrates many of the characteristics of pseudohallucinations: their relation to personality, to sensory deprivation and isolation, and to developmental factors. It also suggests that there may be more than one type of pseudohallucinatory experience.