en
Scientific article
Open access
English

Processing of masked and unmasked emotional faces under different attentional conditions: an electrophysiological investigation

Published inFrontiers in psychology, vol. 6, no. 1691, p. 1-12
Publication date2015
Abstract

In order to investigate the interactions between non-spatial selective attention, awareness and emotion processing, we carried out an ERP study using a backward masking paradigm, in which angry, fearful, happy, and neutral facial expressions were presented, while participants attempted to detect the presence of one or the other category of facial expressions in the different experimental blocks. ERP results showed that negative emotions enhanced an early N170 response over temporal-occipital leads in both masked and unmasked conditions, independently of selective attention. A later effect arising at the P2 was linked to awareness. Finally, selective attention was found to affect the N2 and N3 components over occipito-parietal leads. Our findings reveal that (i) the initial processing of facial expressions arises prior to attention and awareness; (ii) attention and awareness give rise to temporally distinct periods of activation independently of the type of emotion with only a partial degree of overlap; and (iii) selective attention appears to be influenced by the emotional nature of the stimuli, which in turn impinges on unconscious processing at a very early stage. This study confirms previous reports that negative facial expressions can be processed rapidly, in absence of visual awareness and independently of selective attention. On the other hand, attention and awareness may operate in a synergistic way, depending on task demand.

Keywords
  • ERP
  • Awareness
  • Emotions
  • Faces
  • Masking
  • Selective attention
  • Subliminal
Citation (ISO format)
DEL ZOTTO, Marzia, PEGNA, Alan. Processing of masked and unmasked emotional faces under different attentional conditions: an electrophysiological investigation. In: Frontiers in psychology, 2015, vol. 6, n° 1691, p. 1–12. doi: 10.3389/fpsyg.2015.01691
Main files (1)
Article (Published version)
accessLevelPublic
Identifiers
ISSN of the journal1664-1078
517views
266downloads

Technical informations

Creation03/11/2016 4:21:00 PM
First validation03/11/2016 4:21:00 PM
Update time03/15/2023 12:13:08 AM
Status update03/15/2023 12:13:07 AM
Last indexation01/16/2024 8:27:41 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack