Reduced Environmental Stimulation Therapy (REST) in anxiety and depression: An experience sampling study

Area of Science:

• Psychology
• Neuroscience
• Behavioral Therapy

Background:

• Reduced Environmental Stimulation Therapy (REST) is a behavioral intervention reducing sensory input.
• Previous studies show acute anxiolytic and antidepressant effects of single REST sessions.
• The duration and time course of REST effects remain largely unknown.

Purpose of the Study:

• To investigate the time course of anxiolytic and antidepressant effects of REST over 48 hours.
• To explore the impact of multiple REST sessions on anxiety and depression symptoms.
• To determine the persistence of REST's therapeutic benefits.

Main Methods:

• 75 adults with anxiety/depression completed 6 REST sessions (pool or chair).
• Experience sampling via smartphone tracked symptoms at 6 time points post-session.
• Principal component analysis and linear mixed effects models analyzed symptom clusters (anxiety, depression, serenity).

Main Results:

• REST significantly decreased anxiety and depression, and increased serenity, persisting for 48 hours.
• Repeated REST exposure correlated with lower baseline anxiety levels in later sessions.
• Therapeutic effects demonstrated a sustained impact beyond immediate post-intervention.

Conclusions:

• Anxiolytic and antidepressant effects of REST extend for at least 48 hours.
• Repeated REST sessions may yield additive benefits for anxiety symptom reduction.
• Findings inform optimal REST frequency and combination therapy research for anxiety and depression.