Mark R. Dixon & Terry S. Falcomata (2004). Preference for progressive delays and concurrent physical therapy exercise in an adult with acquired brain injury. Journal of Applied Behavior Analysis, 37, 101-105.

The purpose of this study was to increase self-control and engagement in a physical therapy task (head holding) for a man with acquired traumatic brain injury. Once impulsivity was observed (i.e., repeated impulsive choices), an experimental condition was introduced that consisted of choices between a small immediate reinforcer, a large fixed-delay reinforcer, and a large progressive-delay reinforcer. The participant showed a preference for the progressive-delay option, even when the duration of the delay exceeded that of the fixed delay. The results have implications for establishing optimal choice making and teaching life-enhancing skills.

DESCRIPTORS: brain injury, impulsivity, physical therapy, self-control