A general learning impairment model and a reasoning insight model, both in rats, were reviewed for parallels to theories of human cognitive deficiency, leading to the conclusion that animal models of the cognitive deficiency states of mental retardation are underutilized and that human mental retardation researchers would benefit from greater…

Inadequacies of the basic literature on punishment may limit its application in public school settings with mildly and moderately handicapped students. A large research void exists concerning such basic issues as how the timing, scheduling, type, and intensity of punishment affects children's behaviors in applied settings. (SEW)