Immediate and long-term memory for reinforcement context: the development of learned expectancies in early infancy.

Infants were pretrained to move crib mobiles containing 6 or 10 identical objects by means of footkicking and were then exposed to a reinforcer containing only 2 objects. Relative to infants with no prior history of reinformcement with either of the "larger mobiles, infants shifted to the "smaller" mobile had higher kick rates, and, in addition, their visual attention decreased and negative vocalizations increased. These effects were not transient but persisted 24 hours later in infants experiencing the larger (10- to 2-object) shift. The results suggested that infants develop reward-expectation habits which continue to influence behavior for periods of at least 24 hours.

[1]  C. K. Rovee,et al.  Psychophysical scaling of stimulus similarity in 3-month-old infants and adults. , 1976, Journal of experimental child psychology.

[2]  O. R. Lindsley.  Experimental analysis of social reinforcement: terms and methods. , 1963, The American journal of orthopsychiatry.

[3]  C. Rovee-Collier,et al.  Advances in infancy research , 1981 .

[4]  C. Rovee-Collier,et al.  Positive behavioral contrast in 3-month-old infants on multiple conjugate reinforcement schedules. , 1979, Journal of the experimental analysis of behavior.

[5]  L. Lipsitt,et al.  A negative contrast effect in newborns. , 1972, Journal of experimental child psychology.

[6]  R. Bolles.  Reinforcement, expectancy, and learning. , 1972 .

[7]  C. K. Rovee,et al.  Effects of quantitative shifts in a visual reinforcer on the instrumental response of infants. , 1976, Journal of experimental child psychology.

[8]  N. Mackintosh.  The psychology of animal learning , 1974 .

[9]  C. Rovee-Collier,et al.  The economics of infancy: a review of conjugate reinforcement. , 1979, Advances in child development and behavior.

[10]  K. Spence.  Behavior Theory and Conditioning , 1978 .

[11]  C. K. Rovee,et al.  Conjugate reinforcement of infant exploratory behavior. , 1969, Journal of experimental child psychology.

[12]  H. Papoušek,et al.  Cognitive aspects of preverbal social interaction between human infants and adults. , 2008, Ciba Foundation symposium.

[13]  S. Goldberg,et al.  The acquisition and violation of expectancy: an experimental paradigm. , 1969, Journal of experimental child psychology.

[14]  R. Black.  Shifts in magnitude of reward and contrast effects in instrumental and selective learning: a reinterpretation. , 1968, Psychological review.

[15]  C. K. Rovee,et al.  The efficacy of auditory and visual conjugate reinforcers in infant conditioning. , 1978, Journal of experimental child psychology.

[16]  J. Fagen.  Stimulus Preference, Reinforcer Effectiveness, and Relational Responding in Infants. , 1980 .

[17]  L. Lipsitt,et al.  Change in neonatal response to optimizing and non-optimizing sucking stimulation , 1965 .

[18]  H. Helson.  Adaptation-level as a basis for a quantitative theory of frames of reference. , 1948, Psychological review.

[19]  C. Rovee-Collier,et al.  A conditioning analysis of infant long-term memory. , 1979, Child development.

[20]  C. K. Rovee,et al.  Extended conditioning and 24-hour retention in infants. , 1976, Journal of experimental child psychology.