Response differentiation in infants: a sex difference in learning

P. Vietze, M. Foster, S. Friedman

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


A visual stimulus was made contingent upon free operant directional head turns in 10 wk old infants. Male infants significantly increased their rate of head turns to the rewarded side while rate of turns in the nonrewarded direction did not change from baseline levels. Female infants, on the other hand, did not demonstrate conditioning. The finding of a significant sex difference in response differentiation is discussed in terms of previous research which suggests that sex differences in conditioning may be a function of mode of reinforcement.

Original languageEnglish
Pages (from-to)479-484
Number of pages6
JournalPerceptual and Motor Skills
Issue number2
StatePublished - 1974


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