Younger adults were sensitive to differences between enjoyment
and nonenjoyment smiles, consistent with previous research
(Frank et al., 1993; Miles & Johnston, 2007). Older adults were
found to be as sensitive as younger adults when discriminating
between these two types of smile, indicating that there were
age-related similarities in the perception of happiness. However,
the current findings also revealed age differences in the interpretation
of subtle but meaningful differences in positive facial expressions;
older adults had a greater tendency (i.e., response bias)
to categorize the target as feeling happy regardless of the type of
smile displayed
Younger adults were sensitive to differences between enjoymentand nonenjoyment smiles, consistent with previous research(Frank et al., 1993; Miles & Johnston, 2007). Older adults werefound to be as sensitive as younger adults when discriminatingbetween these two types of smile, indicating that there wereage-related similarities in the perception of happiness. However,the current findings also revealed age differences in the interpretationof subtle but meaningful differences in positive facial expressions;older adults had a greater tendency (i.e., response bias)to categorize the target as feeling happy regardless of the type ofsmile displayed
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