The present study (N = 55) used an event-related potential paradigm to investigate whether cultures differ in the ability to upregulate affective responses. Using stimuli selected from the International Affective Picture System, we found that European-Americans (N = 29) enhanced central-parietal late positive potential (LPP) (400-800 ms post-stimulus) responses to affective stimuli when instructed to do so, whereas East Asians (N = 26) did not. We observed cultural differences in the ability to enhance central-parietal LPP responses for both positively and negativelyvalenced stimuli, and the ability to enhance these two types of responses was positively correlated for Americans but negatively for East Asians. These results are consistent with the notion that cultural variations in norms and values regarding affective expression and experiences shape how the brain regulates emotions.
In the present research, we assessed the effects of culture on the ability to regulate affective neural responses. Using an event-related potential design focusing on the centroparietal late positive potential (LPP), we found that cultural groups differed in their ability to intentionally regulate these responses. As a group, European Americans demonstrated successful up-regulation of the LPP in response to positive and negative valence images, as did participants from Mexican cultural backgrounds who also showed successful down-regulation of the LPP in response to positive valence images. As a group, participants from Chinese cultural backgrounds did not show evidence of successful up- or down-regulation of LPP responses. This work confirms and extends preliminary findings of cultural variation in emotion regulation abilities.
Psychologists have long debated whether self-enhancement is universal or varies across cultures. Extant studies using explicit and implicit measures have provided mixed results. In this study (N = 93; 35 European American, 58 Chinese: 28 tested in English, 30 tested in Mandarin), we measured self-enhancement covertly using an ERP paradigm. Self-enhancement was also assessed via self-report and reaction-time based measures. Americans showed strong evidence of self-enhancement across all measures, whereas this effect was absent or weaker among Chinese, who instead showed an other-enhancing bias across measures. Language did not affect self-enhancement tendencies among Chinese participants, with the exception of one self-report measure. Nor did the two cultural groups differ in enhancement for a close other. This is the first study to directly compare self-enhancement across cultural groups using ERPs and provides evidence that positive self-regard does indeed vary by culture.
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