The study tested whether disrupting memory reconsolidation could lower fear in individuals with spider phobias in daily life. Participants who scored highly on a spider phobia questionnaire were given either propranolol or a placebo before viewing spiders. Those given propranolol, which is thought to disrupt reconsolidation, reported less fear and avoidance of spiders after exposure compared to the placebo group. The findings suggest disrupting reconsolidation through propranolol may help reduce phobias experienced outside of lab settings.