Performance under differential outcomes: Contributions of Reward-Specific Expectancies

Abstract Both acquisition and performance across delays are enhanced when each correct stimulus-response sequence in a conditional discrimination task is paired with a different reinforcing outcome, a procedure called differential outcomes (DO). It has been suggested that in the DO procedure, each discriminative stimulus comes to evoke an expectancy of a specific reward and this expectancy exerts stimulus control over choice behavior. Furthermore, expectancy control may reduce control by the discriminative stimulus itself under DO. In the study reported in this article, subjects under DO showed reduced ability to match based on the sample alone when expectancy could not be used to determine specific choices. The results generally support the contention that expectancy control is strong and sample stimulus control is weak under DO.

[1]  M. A. Trapold,et al.  Are expectancies based upon different positive reinforcing events discriminably different , 1970 .

[2]  W. K. Honig,et al.  Outcome expectancies as mediators for discriminative responding. , 1984 .

[3]  G. Peterson,et al.  Two-choice conditional discrimination performance of pigeons as a function of reward expectancy, prechoice delay, and domesticity , 1976, Animal learning & behavior.

[4]  G. Peterson,et al.  Effects of altering outcome expectancies on pigeons' delayed conditional discrimination performance , 1980 .

[5]  J. Overmier,et al.  Improving Face Recognition in Alcohol Dementia , 2001 .

[6]  J. Overmier,et al.  The effects of scopolamine, diazepam, and lorazepam on working memory in pigeons: An analysis of reinforcement procedures and sample problem type , 1994, Pharmacology Biochemistry and Behavior.

[7]  J. Overmier,et al.  Neural correlates of cue-unique outcome expectations under differential outcomes training: An fMRI study , 2009, Brain Research.

[8]  T. DeMarse,et al.  On the relationship between differential outcomes and differential sample responding in matching-to-sample , 1994 .

[9]  G. Peterson,et al.  Interaction of memories and expectancies as mediators of choice behavior. , 1988, The American journal of psychology.

[10]  C. L. Hull.  Goal attraction and directing ideas conceived as habit phenomena. , 1931 .

[11]  Role of differential sample responding in the differential outcomes effect involving delayed matching by pigeons. , 1994, Journal of experimental psychology. Animal behavior processes.

[12]  C. Antunez,et al.  Improving delayed face recognition in Alzheimer's disease by differential outcomes. , 2012, Neuropsychology.

[13]  T. DeMarse,et al.  Enhancement of matching acquisition by differential comparison-outcome associations. , 1993 .

[14]  Peter J. Urcuioli,et al.  Some relationships between outcome expectancies and sample stimuli in pigeons’ delayed matching , 1990 .

[15]  O. L. Tinklepaugh.  An experimental study of representative factors in monkeys. , 1928 .

[16]  D. Martella,et al.  Minimizing sleep deprivation effects in healthy adults by differential outcomes. , 2012, Acta psychologica.

[17]  G. Peterson,et al.  Enhancement of pigeons’ conditional discrimination performance by expectancies of reinforcement and nonreinforcement , 1980 .

[18]  P. Langlais,et al.  Differential outcomes attenuate memory impairments on matching-to-position following pyrithiamine-induced thiamine deficiency in rats , 1995, Psychobiology.

[19]  G. Peterson,et al.  Expectancies as mediators in the differential-reward conditional discrimination performance of pigeons , 1978 .

[20]  D. C. Howell.  Statistical Methods for Psychology , 1987 .

[21]  A. Wright,et al.  A model of detection and decision processes during matching to sample by pigeons: Performance with 88 different wavelengths in delayed and simultaneous matching tasks , 1981 .

[22]  Magdalena Méndez-López,et al.  Visual working memory in deaf children with diverse communication modes: improvement by differential outcomes. , 2012, Research in developmental disabilities.

[23]  P. Marí-Beffa,et al.  Training with differential outcomes enhances discriminative learning and visuospatial recognition memory in children born prematurely. , 2012, Research in developmental disabilities.

[24]  J. Overmier,et al.  Expectancies of reinforcer location and quality as cues for a conditional discrimination in pigeons. , 1990, Journal of experimental psychology. Animal behavior processes.

[25]  J. Bruce Overmier,et al.  Pavlovian conditioned stimulus effects upon instrumental choice behavior are reinforcer specific , 1983 .