The Impact of Mental Imagery Instructions on Patients' and Therapists' Positive Affect and Strength-Based Behaviours Within Psychotherapy Sessions: A Randomized Controlled Process Study.

Objective: Increased attention has recently been paid to the well-being and flourishing of patients in psychotherapy. This study investigated the occurrence of positive affect (PA) and strength-based behaviours within psychotherapy sessions contrasting positive versus neutral imagery instructions.

Methods: This is a secondary analysis of a randomized controlled trial.