restricted environmental stimulation, chamber REST, darkness therapy, psychopathology

The aim of the study was to assess the possible influence of the overall context of a modified version of Chamber REST (Darkness Therapy - DT) on the psychopathological induction. The research sample consisted of 37 clients of the Beskydy Rehabilitation Centre in Čeladná who willingly underwent a week of restricted environmental stimulation - DT (a versionof Chamber REST), during 2012 - 2013. The age ranged between 25 and 84 (M = 45.86; SD = 13.16). The sample consisted of 17 women and 20 men. The participants were selected by purposive voluntary sampling. A week before the DT stay, each of the subjects filled in the Symptom Checklist 90 (SCL-90). Three weeks after they completed the procedure they received SCL-90 again. The data obtained were evaluated by the SPSS software. When comparing the values measured before and after the stayin the researched modification of Chamber REST (Darkness Therapy) environment, we found a significant difference on all scales and on a total score, too.