Fig. 2.
In both Chinese and American groups, the more expressive a person, the more tightly fluctuations in feeling strength correlated with visceral somatosensory (dorsal anterior insula) neural activations. (A) Graphic depicting the relations among individuals’ expressiveness in the interview, and feelings and dAI BOLD response magnitudes during neuroimaging. r was calculated as the trial-by-trial correlation between feeling strength and dAI peak BOLD response magnitude. The relationship between expressiveness and r was calculated controlling for participants’ average feeling strength, average dAI peak BOLD response magnitude and age. (B) Scatterplot depicting the relationship between expressiveness and r (represented in bold in panel A). The center of data from each cultural group is depicted with a solid-fill symbol, and illustrates the main effect of cultural group on expressiveness and r. Trend lines are plotted separately for each cultural group. NOTES: n = 27 for the Chinese group; n = 29 for the American group. We found no significant culture by expressiveness interaction on r: F[1,49] = .28, p = .59, ηp2 = .006.