Automatic face identity encoding at the N170
نویسندگان
چکیده
منابع مشابه
Automatic face identity encoding at the N170
The N170 event-related potential component is currently under investigation for its role in face identity processing. Using a location-matching paradigm, in which face identity is task irrelevant, we observed a progressive decrease in N170 amplitude to multiple repetitions of upright faces presented at unattended locations. In contrast, we did not observe N170 habituation for repeat presentatio...
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Facial variation divides into a number of functional subspaces, and ensemblespecific variation. An improved method of measuring these is presented, within the space defined by an Appearance Model. Initial estimates of the subspaces (lighting, pose, identity and expression) are obtained by Principal Components Analysis on appropriate groups of faces. An expectationmaximization algorithm is appli...
متن کاملThe face-specific N170 component reflects late stages in the structural encoding of faces.
To investigate which stages in the structural encoding of faces are reflected by the face-specific N170 component, ERPs (event-related brain potentials) were recorded in response to different types of face and non-face stimuli. The N170 was strongly attenuated for cheek and back views of faces relative to front and profile views, demonstrating that it is not merely triggered by head detection. ...
متن کاملThe Face-Sensitivity of the N170 Component
The study of face processing and its cognitive and neural basis is an exceptionally active research field (see Calder et al., 2011, for an overview). Numerous findings from electrophysiological studies using intracranial recordings (e.g., Allison et al., 1999) or event-related brain potentials (ERPs) have suggested the existence of face-selective cortical processing mechanisms. The N170 is an e...
متن کاملThe early visual encoding of a face (N170) is viewpoint-dependent: a parametric ERP-adaptation study.
Visual representations of faces are extracted shortly after 100 ms in the human brain, leading to an occipito-temporal cortex N170 event-related potential (ERP). To understand the nature of this early visual representation, a full-front adapting face preceded a different or identical target face identity. The target face varied parametrically in head orientation from the adapting face (0-90°, 1...
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ژورنال
عنوان ژورنال: Vision Research
سال: 2006
ISSN: 0042-6989
DOI: 10.1016/j.visres.2006.09.026