Erhard Seminars Training (est) is a large-group experience that is
becoming widely available in this country. This is the first case report in
the professional literature of psychiatric disturbance following est
training. Five patients, only one of whom had a history of psychiatric
disturbance, developed psychotic symptoms including grandiosity, paranoia,
uncontrollable mood swings, and delusions. Further work is necessary to
ascertain the factors that determine outcome in est.