Face-selective processing in human extrastriate cortex around 120 ms after stimulus onset revealed by magneto- and electroencephalography

Klaus Linkenkaer-Hansen*, Jaakko M. Palva, Mikko Sams, Jari K. Hietanen, Hannu J. Aronen, Risto J. Ilmoniemi

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

212 Citations (Scopus)

Abstract

Quick recognition of faces is crucial to a variety of human interactions, and highly specialized pathways may be involved in the processing of faces. To reveal selectivity to faces in early cortical processing, whole-scalp magnetoencephalography (MEG) and electroencephalography (EEG) were used to record event-related responses to faces and degraded faces and their inverted counterparts. We observed increases in the peak latency and amplitude of the early 120-ms component (P120) for the inverted faces. These effects were enhanced for the 170-ms component (N170). For the degraded counterparts, a significant effect of the inversion was observed only for the N170, which was strongly delayed. Source modelling suggested that the early response originated at the posterior occipital areas whereas the later response was generated anterior and lateral to this location. We conclude that under sufficiently good conditions face- selective activity may be taking place during the P120.

Original languageEnglish
Pages (from-to)147-150
Number of pages4
JournalNeuroscience Letters
Volume253
Issue number3
DOIs
Publication statusPublished - 3 Sep 1998
MoE publication typeA1 Journal article-refereed

Keywords

  • Electroencephalography
  • Faceprocessing
  • Human
  • Magnetoencephalography
  • MEG
  • Visual cortex

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