Differences in the dynamics of affective and cognitive processing - An ERP study

作者：Mueller Christina J^*; Fritsch Nathalie; Hofmann Markus J; Kuchinke Lars

来源：Brain Research, 2017, 1655: 41-47.

DOI：10.1016/j.brainres.2016.11.018

• Affective Primacy
• Cognitive Primacy
• Oddball
• Face perception
• ERP

A controversy in emotion research concerns the question of whether affective or cognitive primacy are evident in processing affective stimuli and the factors contributing to each alternative. Using electrophysiological recordings in an adapted visual oddball paradigm allowed tracking the dynamics of affective and cognitive effects. Stimuli consisted of face pictures displaying affective expressions with rare oddballs differing from frequent stimuli in either affective expression, structure (while frequent stimuli were shown frontally these deviants were turned sideways) or they differed on both dimensions, i.e. in affective expression and structure. Results revealed a defined sequence of differences in ERP amplitudes: For stimuli deviating in their affective expression only, P1 modulations similar to 100 ms were evident, while affective differences of structure deviants were not evident before the N170 time All three types of deviants differed in P300 amplitudes, indicating integration of affective and structural information. These results encompass evidence for both, cognitive and affective primacy depending on stimulus properties. Specifically affective primacy is only visible when the respective facial features can be extracted with ease. When structural differences make face processing harder, however, cognitive primacy is brought forward.

• 出版日期2017-1-15