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Joseph, Beth; Egli, Mark; Koppekin, Amy; Thompson, Travis – American Journal on Mental Retardation, 2002
Seven individuals with Prader-Willi Syndrome and seven obese individuals without the syndrome were compared on their choice of either a larger quantity of food delivered after a delay or a small quantity of food delivered immediately. Individuals with Prader-Willi selected the larger food quantity whereas choices by the obese comparison group was…
Descriptors: Adults, Children, Congenital Impairments, Eating Disorders
Joseph, Beth; And Others – American Journal on Mental Retardation, 1997
Five adults with Prader-Willi syndrome (characterized by short stature, learning difficulties, incomplete sexual development, and uncontrollable eating) learned the conditional relations necessary for the formation of two equivalence classes under differential/nondifferential and edible/nonedible outcomes. Performance on test trials was better…
Descriptors: Adults, Congenital Impairments, Discrimination Learning, Eating Disorders
