The goal of this investigation was to study the regulatory retention effects of an adult's emotional displays on infant behavior. In Study 1, 11- and 14-month-old infants were tested in a social-referencing-like paradigm in which a 1-hr delay was imposed between the exposure trials and the test trial. In Study 2, 11-month-olds were tested in the same paradigm, but the delay between the exposure trials and the test trial was only 3 min. Study 1 revealed that 14-month-olds, but not 11-month-olds, demonstrated behavior regulatory effects toward the target object linked to the adult's emotional displays. Study 2 indicated that 11-month-olds were affected by the emotional displays if the delay between exposure and test trials was brief enough.
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