title: Synchronous reinforcement of vocal responses in failure-to-thrive infants.
mesh_terms: D002657:Child Development; D003216:Conditioning, Operant; D003448:Crying; D005108:Extinction, Psychological; D005260:Female; D006801:Humans; D007223:Infant; D007228:Infant Nutrition Disorders; D007361:Intelligence Tests; D008297:Male; D008426:Maternal Deprivation; D012054:Reinforcement, Psychology; D014831:Voice