Perceptual learning enhances retrospective revaluation of conditioned flavor preferences in rats.

Forward and backward blocking of taste preference learning was compared in rats. In the forward condition, thirsty rats were exposed to a flavor (A) in sucrose solution (+) or in water (-), after which they were exposed to A in compound with another flavor (B) in sucrose solution (i.e., AB+). In the backward condition, these phases were reversed. Consumption of B alone was assessed when rats were food deprived. In the forward condition, rats given A+ consumed less B than rats given A-, providing evidence of forward blocking, whereas in the backward condition, rats given A+ drank more of B than those given A-. Subsequent experiments found that alternating but not blocked preexposure to A and B, when given prior to training, produced blocking of B whether A+ was given before or after AB+, suggesting that prior failures to observe backward blocking reflect failures of discrimination.

[1]  P. Holland,et al.  Spontaneous configuring in conditioned flavor aversion. , 1985, Journal of experimental psychology. Animal behavior processes.

[2]  D. Shanks,et al.  Configural processes in human associative learning. , 1998 .

[3]  Geoffrey Hall,et al.  Acquired equivalence and distinctiveness in human discrimination learning: evidence for associative mediation. , 2003, Journal of experimental psychology. General.

[4]  Peter C. Holland,et al.  Representation-mediated overshadowing and potentiation of conditioned aversions , 1983 .

[5]  R. Rescorla,et al.  Within-compound associations in a variety of compound conditioning procedures , 1980 .

[6]  Geoffrey Hall,et al.  Perceptual learning in flavor aversion conditioning: Roles of stimulus comparison and latent inhibition of common stimulus elements☆ , 1995 .

[7]  Peter C. Holland,et al.  Within-compound associations in serial compound conditioning. , 1981 .

[8]  Alfredo Espinet,et al.  Inhibitory sensory preconditioning , 2004, The Quarterly journal of experimental psychology. B, Comparative and physiological psychology.

[9]  Stimulus comparison and stimulus association processes in the perceptual learning effect , 1999, Behavioural Processes.

[10]  Douglas A. Williams,et al.  Configural and elemental strategies in predictive learning. , 1994 .

[11]  N. Mackintosh,et al.  Inhibitory associations between neutral stimuli in flavor-aversion conditioning , 1995 .

[12]  P. Lovibond.  Causal beliefs and conditioned responses: retrospective revaluation induced by experience and by instruction. , 2003, Journal of experimental psychology. Learning, memory, and cognition.

[13]  J. Pearce.  A model for stimulus generalization in Pavlovian conditioning. , 1987, Psychological review.

[14]  S. Klein,et al.  Handbook of contemporary learning theories , 2000 .

[15]  John R. Anderson.  Studies in Empirical Philosophy , 2004 .

[16]  N. Mackintosh,et al.  Alternating exposure to two compound flavors creates inhibitory associations between their unique features , 2002, Animal learning & behavior.

[17]  Ralph R. Miller,et al.  Information processing in animals : memory mechanisms , 1983 .

[18]  J. B. Nelson,et al.  Blocked and test-stimulus exposure effects in perceptual learning re-examined , 2004, Behavioural Processes.

[19]  M. Best,et al.  Toxicosis-mediated potentiation in a taste/taste compound: Evidence for within-compound associations , 1988 .

[20]  J. Pearce.  Similarity and discrimination: a selective review and a connectionist model. , 1994, Psychological review.

[21]  R. Morris.  Parallel Distributed Processing: Implications for Psychology and Neurobiology , 1990 .

[22]  A. Dickinson,et al.  Retrospective revaluation of causal judgments under positive and negative contingencies. , 1998 .

[23]  M. Holder.  Conditioned preferences for the taste and odor components of flavors: Blocking but not overshadowing , 1991, Appetite.

[24]  E. Gibson,et al.  Principles of Perceptual Learning and Development , 1973 .

[25]  E. Wasserman,et al.  Cue Competition in Causality Judgments: The Role of Nonpresentation of Compound Stimulus Elements , 1994 .

[26]  G. Chapman,et al.  Trial order affects cue interaction in contingency judgment. , 1991, Journal of experimental psychology. Learning, memory, and cognition.

[27]  R. Lubow,et al.  Latent inhibition: the effect of nonreinforced pre-exposure to the conditional stimulus. , 1959, Journal of comparative and physiological psychology.

[28]  R. C. Honey,et al.  The Role of Stimulus Comparison in Perceptual Learning: An Investigation with the Domestic Chick , 1994, The Quarterly journal of experimental psychology. B, Comparative and physiological psychology.

[29]  M Symonds.  Perceptual learning in flavour aversion conditioning. , 1995 .

[30]  A. Dickinson,et al.  Within Compound Associations Mediate the Retrospective Revaluation of Causality Judgements , 1996, The Quarterly journal of experimental psychology. B, Comparative and physiological psychology.

[31]  W. F. Prokasy,et al.  Classical conditioning II: Current research and theory. , 1972 .

[32]  D. Shanks.  Forward and Backward Blocking in Human Contingency Judgement , 1985 .

[33]  R. Rescorla.  A theory of pavlovian conditioning: The effectiveness of reinforcement and non-reinforcement , 1972 .

[34]  Ralph R. Miller,et al.  Biological Significance as a Determinant of Cue Competition , 1996 .

[35]  A. Dickinson,et al.  Judgement of Act-Outcome Contingency: The Role of Selective Attribution , 1984 .

[36]  M. Bardo,et al.  A within-event analysis of taste-potentiated odor and contextual aversions , 1986 .

[37]  M. Best,et al.  Characteristics of taste-mediated environmental potentiation in rats , 1985 .

[38]  A. Markman.  LMS rules and the inverse base-rate effect: Comment on Gluck and Bower (1988). , 1989 .

[39]  N. Mackintosh,et al.  An associative theory of the representation of stimuli: Applications to perceptual learning and latent inhibition. , 1989 .

[40]  A. A. Artigas,et al.  Inhibitory associations between neutral stimuli: A comparative approach , 2001 .

[41]  W. K. Honig,et al.  Fundamental issues in associative learning : proceedings of a symposium held at Dalhousie University, Halifax, June 1968 , 1969 .

[42]  Attention, retrospective processing and cognitive representations. , 1989 .

[43]  Robert R. Mowrer,et al.  Contemporary Learning Theories , 1989 .

[44]  Evidence for Inhibitory Associations between the Unique Elements of two Compound Flavours , 2001, The Quarterly journal of experimental psychology. B, Comparative and physiological psychology.

[45]  Geoffrey Hall,et al.  Contextual effects in latent inhibition with an appetitive conditioning procedure , 1983 .

[46]  Geoffrey Hall,et al.  Learning about associatively activated stimulus representations: Implications for acquired equivalence and perceptual learning , 1996 .

[47]  N. Mackintosh,et al.  An elemental model of associative learning: I. Latent inhibition and perceptual learning , 2000 .

[48]  R. R. Miller,et al.  Biological significance in forward and backward blocking: resolution of a discrepancy between animal conditioning and human causal judgment. , 1996, Journal of experimental psychology. General.

[49]  N. Miller,et al.  Social Learning and Imitation , 1942 .

[50]  C. Tassoni.  THE LEAST MEAN SQUARES NETWORK WITH INFORMATION CODING: A MODEL OF CUE LEARNING , 1995 .

[51]  R. Rescorla,et al.  Within-compound flavor associations. , 1978, Journal of experimental psychology. Animal behavior processes.

[52]  L. Schweitzer,et al.  Reevaluation of things past. A test of the "retrospection hypothesis" using a CER procedure with rats. , 1982, The Pavlovian journal of biological science.

[53]  G. Hall.  Learned Changes in the Sensitivity of Stimulus Representations: Associative and Nonassociative Mechanisms , 2003, The Quarterly journal of experimental psychology. B, Comparative and physiological psychology.

[54]  R. Bolles,et al.  Hunger enhances the expression of calorie- but not taste-mediated conditioned flavor preferences. , 1987, Journal of experimental psychology. Animal behavior processes.