Causal influences in the human brain during face discrimination: a short-window directed transfer function approach

Philiastides, M.G. and Sajda, P. (2006) Causal influences in the human brain during face discrimination: a short-window directed transfer function approach. IEEE Transactions on Biomedical Engineering, 53(12), pp. 2602-2605. (doi: 10.1109/TBME.2006.885122)

Abstract

In this letter, we considered the application of parametric spectral analysis, namely a short-window directed transfer function (DTF) approach, to multichannel electroencephalography (EEG) data during a face discrimination task. We identified causal influences between occipitoparietal and centrofrontal electrode sites, the timing of which corresponded to previously reported EEG face-selective components. More importantly we present evidence that there are both feedforward and feedback influences, a finding that is in direct contrast to current computational models of perceptual discrimination and decision making which tend to favor a purely feedforward processing scheme.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Philiastides, Professor Marios
• Authors: Philiastides, M.G., and Sajda, P.
• College/School: College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
• Journal Name: IEEE Transactions on Biomedical Engineering
• ISSN: 0018-9294