Related Experiment Video
Updated: Aug 16, 2026

Real-time fMRI Biofeedback Targeting the Orbitofrontal Cortex for Contamination Anxiety
Published on: January 20, 2012
Contingent vs. noncontingent EMG feedback and hand temperature in relation to anxiety and locus of control
Abstract:
This study was designed to measure the effects of contingent and noncontingent EMG feedback on hand temperature, anxiety, and locus of control. Two groups of six subjects each were selected on the basis of high test-anxiety scores. The groups participated in a reverse design study in which Group 1 received five sessions of contingent EMG ffedback followed by five sessions of noncontingent feedback. Group 2 received noncontingent feedback followed by contingent feedback. Results indicate a significant order of treatment effect. Subjects who received contingent feedback first produced lower EMG readings, lower test-anxiety scores, and higher hand temperatures during noncontingent feedback sessions. Receiving noncontingent feedback first may actually have interfered with utilizing contingent feedback.
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