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EnglishWe studied attentional modulation of cortical processing of faces and houses with functional MRI and magnetoencephalography (MEG). MEG detected an early, transient face-selective response. Directing attention to houses in ‘‘double-exposure’’ pictures of superimposed faces and houses strongly suppressed the charac- teristic, face-selective functional MRI response in the fusiform gyrus. By contrast, attention had no effect on the M170, the early, face-selective response detected with MEG. Late (>190 ms) cate- gory-related MEG responses elicited by faces and houses, however, were strongly modulated by attention. These results indicate that hemodynamic and electrophysiological measures of face-selective cortical processing complement each other. The hemodynamic signals reflect primarily late responses that can be modulated by feedback connections. By contrast, the early, face-specific M170 that was not modulated by attention likely reflects a rapid, feed- forward phase of face-selective processing.
Dissociation of face-selective cortical responses by attention / M. L., Furey; T., Tanskanen; M. S., Beauchamp; S., Avikainen; K., Uutela; R., Hari; Haxby, James Van Loan. - In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. - ISSN 0027-8424. - 103(2006), pp. 1065-1070.
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| Titolo: | Dissociation of face-selective cortical responses by attention | |
| Autori: | M. L., Furey; T., Tanskanen; M. S., Beauchamp; S., Avikainen; K., Uutela; R., Hari; Haxby, James Van Loan | |
| Autori Unitn: | ||
| Titolo del periodico: | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | |
| Anno di pubblicazione: | 2006 | |
| Codice identificativo Scopus: | 2-s2.0-32244444938 | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1073/pnas.0510124103 | |
| Handle: | http://hdl.handle.net/11572/90778 | |
| Citazione: | Dissociation of face-selective cortical responses by attention / M. L., Furey; T., Tanskanen; M. S., Beauchamp; S., Avikainen; K., Uutela; R., Hari; Haxby, James Van Loan. - In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. - ISSN 0027-8424. - 103(2006), pp. 1065-1070. | |
| Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Furey_PNAS_2006.pdf | Post-print referato (Refereed author’s manuscript) | Tutti i diritti riservati (All rights reserved) | Administrator |
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