دورية أكاديمية
Face familiarity decisions take 200 msec in the human brain : electrophysiological evidence from a go/no-go speeded task
| العنوان: | Face familiarity decisions take 200 msec in the human brain : electrophysiological evidence from a go/no-go speeded task |
|---|---|
| المؤلفون: | Caharel, Stephanie, Ramon, Meike, Rossion, Bruno |
| المساهمون: | UCL - SSS/IONS/COSY - Systems & cognitive Neuroscience, UCL - SSH/IPSY - Psychological Sciences Research Institute |
| المصدر: | Journal of Cognitive Neuroscience, Vol. 26, no.1, p. 81-95 (2014) |
| سنة النشر: | 2014 |
| المجموعة: | DIAL@UCL (Université catholique de Louvain) |
| مصطلحات موضوعية: | adult, human, human experiment, male, medical photography, normal human, observational study, priority journal, right hemisphere, scalp, task performance, article, visual stimulation, brain, brain function, electrode, electroencephalogram, electrophysiology, face, female |
| الوصف: | Recognizing a familiar face rapidly is a fundamental human brain function. Here we used scalp EEG to determine the minimal time needed to classify a face as personally familiar or unfamiliar. Go (familiar) and no-go (unfamiliar) responses elicited clear differential waveforms from 210 msec onward, this difference being first observed at right occipito-temporal electrode sites. Similar but delayed (by about 40 msec) responses were observed when go response were required to the unfamiliar rather than familiar faces, in a second group of participants. In both groups, a small increase of amplitude was also observed on the right hemisphere N170 face-sensitive component for familiar faces. However, unlike the post-200 msec differential go/no-go effect, this effect was unrelated to behavior and disappeared with repetition of unfamiliar faces. These observations indicate that accumulation of evidence within the first 200 msec poststimulus onset is sufficient for the human brain to decide whether a person is familiar based on his or her face, a time frame that puts strong constraints on the time course of face processing. © 2013 Massachusetts Institute of Technology. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | Ndonga |
| تدمد: | 0898-929X 1530-8898 |
| العلاقة: | boreal:139090; http://hdl.handle.net/2078.1/139090Test; urn:ISSN:0898-929X; urn:EISSN:1530-8898 |
| DOI: | 10.1162/jocn_a_00451 |
| الإتاحة: | https://doi.org/10.1162/jocn_a_00451Test http://hdl.handle.net/2078.1/139090Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.A68E18BE |
| قاعدة البيانات: | BASE |
| تدمد: | 0898929X 15308898 |
|---|---|
| DOI: | 10.1162/jocn_a_00451 |