2. POSITIVE EMOTION CULTURE 995
of positive and not of negative emotions. Miyamoto and colleagues role of positive emotions in depression when comparing European
(2010) showed that Japanese participants reported more simulta- Americans with immigrant Asians, then differences between Eu-
neous positive and negative emotions than European Americans ropean Americans and Asians (in Asia) were likely to be even
only in positive and not in negative situations. Similarly, Leu and more significant.
colleagues (2009) demonstrated that in positive, but not negative,
situations the correlation between positive and negative emotions Present Study
was more negative among European Americans than among Chi-
nese or Japanese. These provocative data suggest that in positive
Methods
situations, Asians may “find the bad in the good” more than
European Americans, whereas both Asians and European Ameri- Participants. We compared 330 European American, 156
cans seem to “find the good in the bad” in negative situations. immigrant Asian, and 147 Asian American (N ϭ 633) college
These data further suggest greater cultural variation in the influ- students from a public university in the US who participated for
ence of positive, rather than negative, emotions on mental health. extra course credit. European American participants were at
least third-generation; Asian Americans were all born in the US
The Role of Acculturation to immigrant parents; and immigrant Asian participants came to
the United States at an average age of 11 years (SE ϭ 0.47). The
New evidence using bicultural samples suggests that cultural largest Asian ethnic groups were Chinese, Korean, and Viet-
differences in emotion can also occur within a single national namese, although the sample also included South Asians.
context. For example, Perunovic and her colleagues (Perunovic, Procedure. All participants completed an hour-long survey
Heller, & Rafaeli, 2008) found that Asian-Canadian college on a computer on measures of perceived stress, emotions, fre-
students who were shown Canadian primes reported fewer quency of depression symptoms, and demographics.
dialectical emotions than those who were shown Asian primes. Measures
There is also evidence that the early emotional socialization of Demographics. Socioeconomic status was measured using
Asian American biculturals may mirror the emotional practices the MacArthur Scale of Subjective Social Status, which captures
of immigrant Asians. Tsai and her colleagues demonstrated that relative social rank (Adler, Epel, Castallazzo, & Ickovics, 2000).
young Asian American children preferred low-arousal positive Nativity was measured by participants’ country of birth (i.e., US-
emotions (i.e., calmness) over high-arousal positive emotions or Asia-born); culture/ethnicity was self-identified.
(i.e., excitement), compared with their European American Dependent variable. The Center for Epidemiologic Studies
peers (Tsai, Louie, Chen, and Uchida, 2007). These studies Depression Scale (CES-D; Radloff, 1977) examines subclinical
raise the interesting question of whether adult Asian Americans depression symptoms among general populations and was used
behave emotionally like Asians in Asia or like their Western in other studies of positive emotion and depression (Fredrick-
peers with regard to positive emotion expression. son et al., 2003). This measure consisted of 20 item statements
focusing on frequency of depressed mood, feelings of worth-
Implications for Mental Health lessness, and disturbance of appetite and sleep “in the past
week,” using a scale from 1 (less than one day) to 4 (5–7 days)
Thus, there is reason to predict that culture and acculturation (␣ ϭ 0.89).
may influence the role of positive emotions in mental health. Are Independent variables. The Perceived Stress Scale (Cohen,
positive emotions as protective among Asians as in Western sam- Kamarck, & Mermelstein, 1983) measured the global perception of
ples? There is already evidence that the absence of positive self- stress “over the past month” from 1 (Never) to 5 (Very Often). Sample
esteem is less predictive of depression (Heine et al., 1999) and that items included, “In the last month, how often have you been upset
dialectical emotions are associated with fewer problematic physi- because of something that happened unexpectedly?” and “In the
cal symptoms (Miyamoto & Ryff, in press) among Japanese than last month, how often have you felt on top of things?” (re-
North Americans. However, this is the only study that directly versed) (␣ ϭ 0.86).
examines the relationship between culture, positive emotions, and The Positive and Negative Emotions Schedule–X (PANAS–X;
depression among European Americans and a diverse group of Watson, Clark, & Tellegen, 1998) measured how participants feel
Asians. “on average” by rating the intensity of positive and negative
emotions on a 5-point scale, where 1 ϭ “not at all,” 3 ϭ “mod-
Predictions erately,” and 5 ϭ “extremely.”
In addition, the measure examined specific positive emo-
We predicted that (1) positive emotions would be significant tions such as serenity (i.e., “calm,” “relaxed,” and “at ease”;
predictors of depression symptom frequency for European Amer- ␣ ϭ 0.76), joviality (i.e., “happy,” “joyful,” “delighted,”
icans, but not for immigrant Asians. On the other hand, we “cheerful,” “excited,” “enthusiastic,” “lively,” and “ener-
expected (2) negative emotions to be significantly associated with getic”); ␣ ϭ 0.93); self-assurance (i.e., “proud,” “strong,” “con-
depression for all cultural groups. Lastly, we explored the question fident,” “bold,” “daring,” and “fearless”); ␣ ϭ 0.80), and atten-
of whether US-born Asian American participants looked more like tiveness (i.e., “alert,” “attentive,” “concentrating,” “determined”,
European Americans or foreign-born immigrant Asians. Using ␣ ϭ 0.71).
immigrant Asian samples provided us with the additional advan- Importantly, positive emotion ratings were reliable when calcu-
tage of serving as a conservative test of cultural variation. We lated only among immigrant Asians and Asian Americans (␣s ϭ
reasoned that if we could demonstrate cultural differences in the 0.72 to 0.79). The two-factor structure of positive and negative
3. 996 LEU, WANG, AND KOO
emotions was replicated among all of our samples, consistent with Culture Moderates the Influence of Positive Emotions
past studies including diverse samples (Watson et al., 1988; on Depression
Thompson, 2007).
We used a generalized linear regression model to test our
hypothesis that culture moderates the effect of positive, but not
Results negative, emotions on depression. Specifically, we simultaneously
regressed positive emotions, negative emotions, the interaction of
Descriptives culture and emotion variables, and demographics onto the fre-
quency of depression symptoms. Increases in negative emotions
One-way analyses of variance (ANOVAs) with post hoc Bon- (b ϭ 0.44, SE ϭ 0.05, p Ͻ .001) and decreases in positive
ferroni corrections revealed that immigrant Asians (M ϭ 0.86, emotions (b ϭ Ϫ0.33, SE ϭ 0.05, p Ͻ .001) were associated with
SE ϭ .04) and Asian Americans (M ϭ 0.72, SE ϭ .04) reported greater depression symptoms. As predicted, an interaction between
more frequent depression symptoms than European Americans positive emotions and culture was significant (b ϭ 0.001, SE ϭ
(M ϭ 0.63, SE ϭ .03), F(2, 629) ϭ 10.94, p Ͻ .001. Consistent 0.001, p Ͻ .01), whereas there was no significant interaction
with past studies, European Americans (M ϭ 3.59, SE ϭ .03) between negative emotions and culture (b ϭ 0.0001, SE ϭ 0.001,
reported greater positive emotion intensity than immigrant Asians p Ͼ .05). To understand the significant culture x positive emotion
(M ϭ 3.29, SE ϭ .05) or Asian Americans (M ϭ 3.30, SE ϭ .05), interaction, regression outputs were split by cultural group. As
F(2, 630) ϭ 17.01, p Ͻ .001. Except for depression symptoms, for seen in Table 1, positive emotions were negatively associated with
which the means were relatively close to the low end of the scale, frequency of depression symptoms among European Americans
none of the variables suffered from ceiling or floor effects. and Asian Americans, but not among immigrant Asians.
As seen in Figure 1, the intensity of positive emotion and Does culture moderate positive emotion mediation? To
frequency of depression symptoms were negatively correlated compare our data with other models of stress and depression that
among European Americans (r ϭ Ϫ0.46, p Ͻ .001) and Asian have demonstrated positive emotion mediation (Fredrickson et al.,
Americans (r ϭ Ϫ0.26, p Ͻ .01), but not among immigrant Asians 2003; Kiecolt-Glaser et al., 2002), we assumed a causal relation-
(r ϭ Ϫ0.03, p Ͼ .05). Negative emotion intensity and depression ship between stress and emotions and between emotions and
were positively correlated for all groups (rEA ϭ 0.57, p Ͻ .001; depression in our data despite the obvious limitations of using
rIA ϭ 0.43, p Ͻ .001; rAA ϭ 0.52, p Ͻ .001). Evidence of a cross-sectional data. We found that positive emotion mediated
dialectical relationship between positive and negative emotions stress and frequency of depression symptoms only among Euro-
was found among immigrant Asians but not Asian Americans pean Americans and not immigrant Asians. On the other hand, we
(rIA ϭ 0.24, p Ͻ .01; rAA ϭ 0.11, p Ͼ .05). found that negative emotions mediated stress and frequency of
European Americans Asian Americans
Immigrant Asians
Figure 1. Scatter plots of the correlation between positive emotions and frequency of depression symptoms
among European Americans (r ϭ Ϫ.46 ,)ءءءAsian Americans (r ϭ Ϫ.26 ,)ءءand Immigrant Asians (r ϭ Ϫ.03)
( ءp Ͻ .05, ءءp Ͻ .01, ءءءp Ͻ .001).
4. POSITIVE EMOTION CULTURE 997
Table 1 Exploring an Alternative Explanation
Regression of Demographics, Positive, and Negative Emotions
Tsai (2007) suggests that low-arousal positive emotions (e.g.,
on Mean Frequency of Depression Symptoms
serenity) are preferred by East Asians, whereas high-arousal pos-
Model 1 Model 2 Model 3 itive emotions (e.g., joviality, self-assurance, attentiveness, and
surprise) are preferred by European Americans. Therefore, by
European Asian Immigrant using a summary positive affect variable that conflated both high-
American American Asian and low-arousal positive emotions, we may have overlooked the
Variables B (SE) B (SE) B (SE) possibility that low-arousal positive emotions predict depression
among our Asian samples.
ء
Intercept 0.66 (0.41) 1.05 (0.43) 0.27 (0.55) To test this alternative hypothesis, we reran the original regres-
Sex 0.04 (0.04) 0.001 (0.06) Ϫ0.07 (0.09) sion analysis, replacing the summary positive affect variable with
Age Ϫ0.01 (0.02) Ϫ0.02 (0.02) 0.01 (0.02)
SES 0.03ء (0.01) Ϫ0.01 (0.02) 0.02 (0.03) high- or low-arousal positive affect subscales in separate models.
Negative Emotion 0.40ءءء (0.04) 0.45ءءء (0.05) 0.35ءءء (0.06) We simultaneously regressed high-/low-arousal positive emotions,
Positive Emotion Ϫ0.26ءءء (0.04) Ϫ0.22ءءء (0.05) Ϫ0.10 (0.06) negative emotions, the interaction of culture and emotion vari-
ء ءءء
ables, and demographics onto the frequency of depression symp-
p Ͻ .05. p Ͻ .001.
toms. We found a significant interaction effect between culture and
the high-arousal subscale (b ϭ 0.001, SE ϭ 0.001, p Ͻ .01) on
depression symptoms for all groups. Although not our main pre-
depression symptoms. However, there was no interaction between
diction, these analyses (reported in detail below) complement the
culture and the low-arousal subscale (serenity). For both analyses,
regression analyses reported in Table 1 in suggesting that culture
there was no interaction between culture and negative affect.
may moderate the role of positive, but not negative, emotions in
Therefore, inconsistent with ideal affect theory, there was no
depression symptom expression.
evidence that culture moderated the association between low-
Using a common four-step criteria test for mediation (Baron &
arousal positive emotions and depression symptoms. Consistent
Kenny, 1986), we found evidence that positive emotions mediated
with ideal affect theory, however, when we split the regression
the relationship between perceived stress and depression symp-
outputs for the high-arousal subscale by cultural group, we found
toms only among European Americans and not among either Asian
evidence that increases in high-arousal positive emotions (i.e.,
group. For example, among European Americans, perceived stress
joviality, self-assurance, attentiveness, and surprise) were as-
was correlated with positive emotions (b ϭ Ϫ0.31, SE ϭ .05,  ϭ
sociated with decreases in depression symptoms among Euro-
Ϫ0.33, p Ͻ .001). Perceived stress was then correlated with
pean Americans (b ϭ Ϫ0.31, SE ϭ 0.04, p Ͻ .001), but not
frequency of depression symptoms (b ϭ 0.48, SE ϭ .03,  ϭ 0.63,
immigrant Asians (b ϭ Ϫ0.12, SE ϭ 0.04, p Ͼ .05). Interest-
p Ͻ .001). Positive emotions (b ϭ Ϫ0.23, SE ϭ 0.04,  ϭ Ϫ0.28,
ingly, Asian Americans looked more similar to European Amer-
p Ͻ .001) were significantly correlated with frequency of depres-
icans than immigrant Asians (b ϭ Ϫ0.25, SE ϭ 0.05, p Ͻ .001).
sion symptoms when controlling for perceived stress. The Sobel
test was significant (Z ϭ 4.55, p Ͻ .001), indicating partial
mediation by positive emotions. For immigrant Asians, although
General Discussion
perceived stress and frequency of depression symptoms were In a large survey of college students, we found evidence that
correlated (bIA ϭ 0.52, SE ϭ 0.06,  ϭ 0.59, p Ͻ .001), perceived culture may moderate the role of positive emotions on depression.
stress and positive emotions were not significantly correlated We used two kinds of analyses to demonstrate this. First, we
(bIA ϭ Ϫ0.12, SE ϭ 0.09,  ϭ Ϫ0.10, p Ͼ .05) and mediation was showed that increased positive emotions were directly related to
not run. For Asian Americans, perceived stress and frequency of decreases in depression symptoms among European Americans,
depression symptoms were correlated (bAA ϭ 0.50, SE ϭ 0.04, but not among immigrant Asians. Also as predicted, increased
 ϭ 0.69, p Ͻ .001). Positive emotions were not significantly negative emotions were associated with increases in depression
correlated with frequency of depressive symptoms when control- symptoms across all groups. These findings are consistent with
ling for perceived stress (b ϭ Ϫ0.002, SE ϭ 0.05,  ϭ Ϫ0.003, research on dialectical emotions, where cultural differences are
p Ͼ .05). greater in positive than negative situations.
Also as predicted, we found evidence that negative emotions Next, we tested whether positive feelings explained the influ-
mediated the relationship between perceived stress and depression ence of stress on depression among both European Americans and
symptoms among all three cultural groups. Perceived stress was Asians. There are limitations of assuming causality in data that
correlated with negative emotions (bEA ϭ 0.59, SE ϭ .04,  ϭ only measures one point in time, so we need be cautious of
0.65, p Ͻ .001; bIA ϭ 0.62, SE ϭ .08,  ϭ 0.53, p Ͻ .001; bAA ϭ generalizing this evidence. Still, we found more evidence that
0.45, SE ϭ .07,  ϭ 0.48, p Ͻ .001). Perceived stress and culture influences the role of positive feelings in depression. The
frequency of depression symptoms were significantly correlated influence of stress on depression was partially explained by the
(see positive emotion mediation results). Negative emotions intensity of positive feelings for only European Americans. How-
(bEA ϭ 0.23, SE ϭ 0.05,  ϭ 0.27, p Ͻ .001; bIA ϭ 0.13, SE ϭ ever, negative emotions partially explained the effect of stress on
0.06,  ϭ 0.17, p Ͻ .05; bAA ϭ 0.19, SE ϭ 0.05,  ϭ 0.25, p Ͻ depression for all groups. Altogether, these findings suggest that
.001) were significantly correlated with frequency of depression culture may moderate the role that positive emotions play in
symptoms when controlling for perceived stress. A significant mental health.
Sobel test (ZEA ϭ 4.82, p Ͻ .001; ZIA ϭ 2.08, p Ͻ .05; ZAA ϭ 3.26, One may wonder if our findings are the result of positive
p Ͻ .001) indicated partial mediation by negative emotions. emotions being correlated with negative emotions, such that the
5. 998 LEU, WANG, AND KOO
association between positive emotions and depression symptoms is sality. We used subclinical depression symptoms, which have
an “epiphenomon” of the correlation between negative emotion previously been used to demonstrate the protective role of positive
and depression. However, the regression analyses (see Table 1) emotions among Western samples (Fredrickson et al., 2003). Pre-
show that this is not the case. We also know that the positive sumably, cultural differences among clinical samples may be even
emotion ratings from both Asian samples were reliable, so the more pronounced, although a clinical sample is ultimately needed.
validity of the PANAS–X scale is not the reason for failing to find Despite these limitations, our findings raise the question of
evidence for the effects of positive emotions among Asians. We whether positive psychology interventions (i.e., optimistic think-
further ruled out the possibility that low-arousal positive emotions ing or replaying positive experiences) which typically alleviate
would be significantly predictive of depression among immigrant depression symptoms for Westerners (Sin & Lyubomirsky, 2009),
Asians but not European Americans (Tsai, 2007). will be similarly effective for Asians to practice. Instead, therapies
We suggest that one reason why positive emotions may not be which encourage individuals to embrace both positive and nega-
as “positive” for Asians as for European Americans is because of tive emotions may be more effective with Asian clients (e.g.,
cultural differences in the meaning assigned to positive, but not Hayes, Strosahl, & Wilson, 1999). Future longitudinal data and
negative, emotions. At least two experimental studies (Leu et al., experimental studies with diverse clinical samples will contribute
2009; Miyamoto et al., 2010) have previously shown that East- to a needed body of research that addresses how culture influences
West differences in emotion reports are greatest in positive, and the “good” of positive emotions, and more broadly, the role of
not negative, situations. While maximizing positive emotions may culture and positive psychology in mental health.
be a cultural goal in Western contexts, emotion moderation
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