AI Article Synopsis
- Previous research has found that infants respond with stronger brain activity to negative emotions than positive ones when viewing faces, but the exact reasons for these differences are not fully understood.
- In this study, researchers analyzed 7-month-old infants' brain responses and eye movements while they looked at human and animal faces showing different emotions (happy, fear, anger).
- Results showed that infants had a stronger brain response (greater N290 amplitude) to angry animal faces compared to happy or fearful ones, and those who focused more on the eye region of human faces displayed higher brain activity linked to fear or anger.
Article Abstract
Previous studies in infants have shown that face-sensitive components of the ongoing electroencephalogram (the event-related potential, or ERP) are larger in amplitude to negative emotions (e.g., fear, anger) versus positive emotions (e.g., happy). However, it is still unclear whether the negative emotions linked with the face or the negative emotions alone contribute to these amplitude differences. We simultaneously recorded infant looking behaviors (via eye-tracking) and face-sensitive ERPs while 7-month-old infants viewed human faces or animals displaying happy, fear, or angry expressions. We observed that the amplitude of the N290 was greater (i.e., more negative) to angry animals compared to happy or fearful animals; no such differences were obtained for human faces. Eye-tracking data highlighted the importance of the eye region in processing emotional human faces. Infants that spent more time looking to the eye region of human faces showing fearful or angry expressions had greater N290 or P400 amplitudes, respectively.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4284144 | PMC |
| http://dx.doi.org/10.1002/dneu.22204 | DOI Listing |
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