PSYC 4240 Lecture Notes - Lecture 3: Dsm-5, Content Validity, Predictive Validity
19 May 2016
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Learning from fmri, pet screening procedures about function and structure of brain and what roles they play in psychopath. Can change brain functions, particularly earl experiences with regard to feelings of control and safety. I. e. identical group of monkeys; 1 has control (can choose when to/what toys to play with) while 2 doesn"t have control and gets whatever group 1 chooses. Group 2 is used to being passive, so they accept while group 1 freaks out and become aggressive. *neurotransmitters interact with psychosocial factors (past experiences) to affect current behavior. Animal research in learning and cognition led to important insights into psychopathology. Classical conditioning only worked if it was consistent. If there was a strict association between bell and food, the reaction would be quickly forgotten. To keep reaction going longer, use a variable reinforcement schedule (sometimes 1 ring, sometimes 5 or 12).
