PSYC 351 Chapter Notes - Chapter 4: Asymptote, Robert A. Rescorla, London Academy Of Music And Dramatic Art
2 Nov 2016
School
Department
Course
Professor
Document Summary
Strong conditioned responding indicates strong expectation of the us. Weak conditioned responding indicates a low expectation of the us. Growth of associative value (v) during the course of conditioning until the asymptote of learning (lamda) is reached. Note that the measure of surprise (lamda - v) is much larger early in training than late in training. Thus, rescorla-wagner equation is an error-correction mechanisms. Therefore, by the end of phase 1, va will be equal to the asymptote of learning, or va = lamda: phase 2: two cues: a and b. Because of phase 1 training, va = lamda at start of phase. Stimulus b will not acquire associative value in phase 2. Thus, the conditioning of stimulus b will be blocked. Loss of associative value despite pairings with the us. This is an over-expectation because the us remains only one food pellet.
