Composite facial expressions: half-face diagnostic features dominate emotion discriminationстатья Тезисы

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Дата последнего поиска статьи во внешних источниках: 19 декабря 2017 г.

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[1] Composite facial expressions: half-face diagnostic features dominate emotion discrimination / G. Menshikova, D. Bimler, Y. Bondarenko, G. Paramei // Perception. — 2016. — Vol. 45, no. S2. — P. 235–236. We used composite facial expressions to explore the role of diagnostic features in upper and lower half-faces in emotion discrimination. Stimuli were images of six basic emotional expressions plus Neutral of a male poser (Ekman&Friesen, 1976), and 24 composites combining Happiness, Anger and Fear in upper or lower face with other 5 expressions. These three expressions concentrate their distinguishing features in a single half-face. Stimuli were presented in 930 concurrent pairs, each for 2000 ms. Eighteen participants rated pair wise similarity on a scale from 1 to 9. Full matrices were processed with PROXSCAL multidimensional scaling program. We retained a 5D solution (Stress=10.3%). D1 and D3 captured lower-face variations: D1 separated X-Happiness (smiling mouth) from other stimuli, with X-Disgust and X-Sadness (closed mouth) at the other extreme; D3 opposed X-Anger (compressed mouth) and X-Fear, X-Surprise (open mouth). Other dimensions were upper-face: D2 opposed Fear-X, Surprise-X (wide-opened eyes) and other expressions; D4 separated Fear-X from Surprise-X, and Sadness-X from others; D5 separated Anger-X from others. Similarity processing treated diagnostic facial features as independent components. That is, the solution resolved into independent upper- and lower- face sub-spaces, with little sign of holistic aspects for these expressions of complex, hardto-verbalise emotions. [ DOI ]

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