Secondary reinforcement in infants
Date of Original Version
A spatial discrimination was successfully formed by 10-month-old infants during a single experimental session on the basis of secondary reinforcement. In the first task, Ss received paired presentations of a tone and cereal for touching a target. After each reinforcement, 23 sec elapsed before another could be received and S heard a second tone during this period. In the second task, Ss heard the food-paired tone (T+) each time they touched one of 2 new targets and heard the second tone (Tn) each time they touched the other target. The number of responses producing T+ was reliably greater than the number producing Tn, thus demonstrating a genuine secondary reinforcement effect. © 1972.
Journal of Experimental Child Psychology
Silverstein, Albert. "Secondary reinforcement in infants." Journal of Experimental Child Psychology 13, 1 (1972): 138-144. doi:10.1016/0022-0965(72)90013-6.