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Eye Fixation-Related Potentials during Visual Search on Acquaintance and Newly-Learned Faces

1
Brain-Computer Interface Laboratory, Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
2
Interaction Laboratory, Department of Design, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
3
Human Performance Laboratory, Department of Psychology, Korea University, Seoul 02841, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Heather Bortfeld
Brain Sci. 2021, 11(2), 218; https://doi.org/10.3390/brainsci11020218
Received: 13 January 2021 / Revised: 3 February 2021 / Accepted: 7 February 2021 / Published: 10 February 2021
Searching familiar faces in the crowd may involve stimulus-driven attention by emotional significance, together with goal-directed attention due to task-relevant needs. The present study investigated the effect of familiarity on attentional processes by exploring eye fixation-related potentials (EFRPs) and eye gazes when humans searched for, among other distracting faces, either an acquaintance’s face or a newly-learned face. Task performance and gaze behavior were indistinguishable for identifying either faces. However, from the EFRP analysis, after a P300 component for successful search of target faces, we found greater deflections of right parietal late positive potentials in response to newly-learned faces than acquaintance’s faces, indicating more involvement of goal-directed attention in processing newly-learned faces. In addition, we found greater occipital negativity elicited by acquaintance’s faces, reflecting emotional responses to significant stimuli. These results may suggest that finding a familiar face in the crowd would involve lower goal-directed attention and elicit more emotional responses. View Full-Text
Keywords: visual search; familiarity; eye-fixation related potential; eye-tracking; face visual search; familiarity; eye-fixation related potential; eye-tracking; face
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MDPI and ACS Style

Lee, S.; Lee, D.; Gil, H.; Oakley, I.; Cho, Y.S.; Kim, S.-P. Eye Fixation-Related Potentials during Visual Search on Acquaintance and Newly-Learned Faces. Brain Sci. 2021, 11, 218. https://doi.org/10.3390/brainsci11020218

AMA Style

Lee S, Lee D, Gil H, Oakley I, Cho YS, Kim S-P. Eye Fixation-Related Potentials during Visual Search on Acquaintance and Newly-Learned Faces. Brain Sciences. 2021; 11(2):218. https://doi.org/10.3390/brainsci11020218

Chicago/Turabian Style

Lee, Seungji, Doyoung Lee, Hyunjae Gil, Ian Oakley, Yang S. Cho, and Sung-Phil Kim. 2021. "Eye Fixation-Related Potentials during Visual Search on Acquaintance and Newly-Learned Faces" Brain Sciences 11, no. 2: 218. https://doi.org/10.3390/brainsci11020218

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