APA Dictionary of Psychology

any writing exercise undertaken by the patient to support therapeutic work. It is especially useful in helping trauma patients to process and express their thoughts and feelings about a traumatic event, but it can be used for a wide range of patients, situations, and conditions (e.g., eating disorders, depression, asthma). Studies have shown that therapeutic writing can improve coping skills and enhance personal growth, interpersonal relationships, psychological and physiological well-being, and general functioning. Also called expressive writing.