(burrhusfrederic) 1849-1936 1874-1949 1904- bf319 childpsychology classical conditioning decisionmaking emotions empathy ethnopsychology galvanicskinresponse interpretationcommunicationinchildren judgment languageacquisition learning memory methodology motivation(psychology) natureandnurture neurochemistry neurophysiology neuropsychology operantconditioning optimism perception physiology psychology psychologyof rabbits reinforcement(psychology) research sensesandsensation sex(psychology) socialpsychology