Cognitive mechanisms of the face context effect: An event related potential study of the effects of emotional contexts on neutral face perception

Gao, Yuan; Lin, Wuji; Zhang, Mingzhe; Zheng, Lurong; Liu, Jiaxi; Zheng, Minghui; En, Yuyao; Chen, Yujie; Mo, Lei

doi:10.1016/j.biopsycho.2022.108430

Cited by 6 publications

(2 citation statements)

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“…While the N170 peak (a negative peak, which arises at 150-200 msec after stimulus onset) is considered to be the major marker of face detection (Feurriegel et al, 2015), an increasing amount of evidence is currently being accumulated regarding the sensitivity of such ERP components as N400 (a negative component, which occurs around 400 msec after stimulus onset and indicates attention modulation during face processing (Neumann, Schweinberger, 2008)) and late positive potential (LPP, a positive peak at 800-1000 msec latency after stimulus onset). According to recent data (Gao et al, 2022), the LPP is considered to be the major ERP component conveying the face context effect. That is, the early-stage processing mainly reflects the emotion-valence based effects of face perception, while the late positive potentials correlate with specific contextual emotion-based effects.…”

Section: Introductionmentioning

confidence: 99%

Distorted Face Perception:an Erp Study of Emotional Expression Processing

Chernykh,

Zyma

2023

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Background. Reading the emotional cues from the faces of people around us is considered to be the crucial element of successful social interaction. However, at the moment there is no single point of view on the basic principles of the organization of neuromechanisms corresponding to face perception, which determines the relevance of this work. Therefore, we focused primarily on the effective neuronal networks formed during the processing of emotional visual stimuli – human faces, in their natural form and under the conditions of configurational changes‘ introduction. Current study aimed at highlighting more subtle elements of face perception and decoding mechanisms. Methods. For the purpose of the study, blurred facial expressions were presented amongst the natural face images of different emotional valence. During the exposition, the electroencephalogram was recorded, which then formed the basis for eventrelated potentials' grand average calculation. Further analysis involved comparing the grand average ERP curves recorded from the precentral cortical regions in two gender-based groups. The findings showed that female participants were more engaged in detecting and deciphering emotional expressions even from the minute hints included in the blurred photos. On the other hand, the male group also showed more significant decoding and recall processes, when presented with blurred neutral stimuli. Results. The findings showed that female participants were more engaged in detecting and deciphering emotional expressions even from the minute hints included in the blurred photos. On the other hand, the male group also showed more significant decoding and recall processes, when presented with blurred neutral stimuli. Conclusions. These results are consistent with current evidence on the emotional sensitivity hypothesis and genderspecific variations in face perception strategies, which reveal that men and women appear to perceive neutral faces with varying degrees of accuracy, and women are more likely to perform better when processing emotional expressions.

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Section: Introductionmentioning

confidence: 99%

Distorted Face Perception:an Erp Study of Emotional Expression Processing

Chernykh,

Zyma

2023

BTSNUKSB

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“…Studies using blended ambiguous facial emotions seem ill-suited to the purpose, as they are probably better characterized as "mixed emotions" from an MA-EM perspective. However, neutral faces fit the bill quite well; while they are no less directly perceivable than other facial expressions, they are indeed best understood as ambiguous rather than truly neutral, as evidenced, e.g., by their proneness to internal and external contextual influences (Gao et al, 2022), such as a particularly high susceptibility to carry-over effects (e.g., a neutral face preceded by a happy face is perceived as sad while the same neutral face preceded by a sad face is perceived as happy; Russell & Fehr, 1987;Wieser & Brosch, 2012).…”

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confidence: 98%