Event-related potentials to unattended changes in facial expressions: detection of regularity violations or encoding of emotions?
Astikainen, P., Cong, F., Ristaniemi, T., & Hietanen, J. K. (2013). Event-related potentials to unattended changes in facial expressions: detection of regularity violations or encoding of emotions?. Frontiers in Human Neuroscience, 7. https://doi.org/10.3389/fnhum.2013.00557
Published inFrontiers in Human Neuroscience
© 2013 Astikainen, Cong, Ristaniemi and Hietanen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Visual mismatch negativity (vMMN), a component in event-related potentials (ERPs), can be elicited when rarely presented “deviant” facial expressions violate regularity formed by repeated “standard” faces. vMMN is observed as differential ERPs elicited between the deviant and standard faces. It is not clear, however, whether differential ERPs to rare emotional faces interspersed with repeated neutral ones reflect true vMMN (i.e., detection of regularity violation) or merely encoding of the emotional content in the faces. Furthermore, a face-sensitive N170 response, which reflects structural encoding of facial features, can be modulated by emotional expressions. Owing to its similar latency and scalp topography with vMMN, these two components are difficult to separate. We recorded ERPs to neutral, fearful, and happy faces in two different stimulus presentation conditions in adult humans. For the oddball condition group, frequently presented neutral expressions (p = 0.8) were rarely replaced by happy or fearful expressions (p = 0.1), whereas for the equiprobable condition group, fearful, happy, and neutral expressions were presented with equal probability (p = 0.33). Independent component analysis (ICA) revealed two prominent components in both stimulus conditions in the relevant latency range and scalp location. A component peaking at 130 ms post stimulus showed a difference in scalp topography between the oddball (bilateral) and the equiprobable (right-dominant) conditions. The other component, peaking at 170 ms post stimulus, showed no difference between the conditions. The bilateral component at the 130-ms latency in the oddball condition conforms to vMMN. Moreover, it was distinct from N170 which was modulated by the emotional expression only. The present results suggest that future studies on vMMN to facial expressions should take into account possible confounding effects caused by the differential processing of the emotional expressions as such. ...
Publication in research information system
MetadataShow full item record
Except where otherwise noted, this item's license is described as © 2013 Astikainen, Cong, Ristaniemi and Hietanen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Showing items with similar title or keywords.
Brain's change detection elicited by emotional facial expressions in depressed and non-depressed individuals Hannikainen, Kirsti (2009)
Brain's capacity to detect abstract regularities from visual stimuli under different attentive conditions- an ERP study Pynnönen, Silja (2010)Many previous studies have applied oddball paradigm to study change detection. Although changes within single features have been investigated a lot, the changes in multiple feature conjunctions have not. The aim of our ...
Astikainen, Piia; Hietanen, Jari K. (2009)Abstract Background Numerous previous experiments have used oddball paradigm to study change detection. This paradigm is ...
Electrophysiological evidence of memory-based detection of auditory regularity violations in anesthetized mice Kurkela, Jari; Lipponen, Arto; Kyläheiko, Iiris; Astikainen, Piia (Nature Publishing Group, 2018)In humans, automatic change detection is reflected by an electrical brain response called mismatch negativity (MMN). Mismatch response is also elicited in mice, but it is unclear to what extent it is functionally similar ...
Pre-attentive change detection of emotional facial expressions : effects of depression and a short psychological intervention - and ERP study Kurkela, Jari; Mäki, Tero (2012)Tämän tutkimuksen tavoitteena oli tutkia aivojen esitietoista muutoksenhavaitsemiskykyä mittaamalla tapahtumasidonnaisia herätevastepotentiaaleja (ERP) elektroenkefalografiassa (EEG), käyttäen ärsyk-keenä emotionaalisia ...