AI Article Synopsis
- Humans can quickly recognize faces due to a special way they process facial features and their relationships, called holistic processing.
- A study involved 19 participants completing a facial and object discrimination task while their brain activity was measured using EEG.
- Results indicated that brain responses to facial features occur faster (around 100 ms) compared to objects (around 200 ms), highlighting different brain processing speeds for faces versus other objects.
Article Abstract
The peculiar ability of humans to recognize hundreds of faces at a glance has been attributed to face-specific perceptual mechanisms known as holistic processing. Holistic processing includes the ability to discriminate individual facial features (i.e., featural processing) and their spatial relationships (i.e., spacing processing). Here, we aimed to characterize the spatio-temporal dynamics of featural- and spacing-processing of faces and objects. Nineteen healthy volunteers completed a newly created perceptual discrimination task for faces and objects (i.e., the "University of East London Face Task") while their brain activity was recorded with a high-density (128 electrodes) electroencephalogram. Our results showed that early event related potentials at around 100 ms post-stimulus onset (i.e., P100) are sensitive to both facial features and spacing between the features. Spacing and features discriminability for objects occurred at circa 200 ms post-stimulus onset (P200). These findings indicate the existence of neurophysiological correlates of spacing vs. features processing in both face and objects, and demonstrate faster brain processing for faces.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5346548 | PMC |
| http://dx.doi.org/10.3389/fpsyg.2017.00333 | DOI Listing |
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