Operant-contingency-based preparation of children for functional magnetic resonance imaging

Area of Science:

• Neuroscience
• Pediatric Psychology
• Behavioral Science

Background:

• Functional magnetic resonance imaging (fMRI) is a key tool for studying brain function during tasks.
• Pediatric subject participation in fMRI presents challenges due to the need for both reliable task performance and minimal head movement.
• Existing methods struggle to simultaneously address cognitive and motor control requirements in children.

Purpose of the Study:

• To investigate the efficacy of behavior analysis techniques in improving pediatric cooperation during fMRI.
• To assess the impact of differential reinforcement on head motion and task performance in children undergoing simulated fMRI.
• To determine if behavioral interventions can enhance the feasibility of fMRI studies in pediatric populations.

Main Methods:

• Four children, including two with behavioral disorders, participated in simulated fMRI scans.
• Differential reinforcement techniques were applied to manage behavior during the simulated scanning.
• Vigilance tasks were used to measure task performance and head motion was monitored.

Main Results:

• Differential reinforcement significantly decreased head motion in pediatric subjects.
• The intervention improved vigilance task performance among the participating children.
• Behavioral strategies proved effective in enhancing cooperation during simulated fMRI.

Conclusions:

• Behavior analysis techniques, specifically differential reinforcement, are effective in improving pediatric cooperation during fMRI.
• These methods can mitigate challenges related to head motion and task performance in child fMRI studies.
• Behavioral interventions offer a promising approach to increase the utility of fMRI in pediatric research.