In this study, we examined whether 10-month-old infants' reactions to
a novel toy are regulated by an experimenter's (E's) conflicting and n
onconflicting, angry and happy emotion communications about that toy.
Two clusters of variables served as measures of infants' responses: ''
ambivalence'' (presence of both negative and positive facial emotion s
ignals), and ''uncertainty'' (frequent and/or prolonged fixation of E,
and/or reluctance to approach a novel toy). Results revealed that unc
ertainty responses were higher in conditions involving anger, whether
these were conflicting or nonconflicting conditions. In addition, conf
licting conditions induced greater ambivalence than did nonconflicting
, angry signals. Finally, there was evidence that sequential conflict-
conditions under which a clear-cut happy or angry signal is followed b
y clear-cut signals of the other emotion-may produce especially great
uncertainty and/or ambivalence.