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Are Happy Faces Attractive? The Roles of Early vs. Late Processing.

Sun D, Chan CC, Fan J, Wu Y, Lee TM - Front Psychol (2015)

Bottom Line: Facial attractiveness is closely related to romantic love.We found that attractiveness and expression were reflected by two early components, P2-lateral (P2l) and P2-medial (P2m), respectively; their interaction effect was reflected by LPP, a late component.The findings suggested that facial attractiveness and expression are first processed in parallel for discrimination between stimuli.

View Article: PubMed Central - PubMed

Affiliation: Laboratory of Neuropsychology, The University of Hong Kong Hong Kong, China.

ABSTRACT
Facial attractiveness is closely related to romantic love. To understand if the neural underpinnings of perceived facial attractiveness and facial expression are similar constructs, we recorded neural signals using an event-related potential (ERP) methodology for 20 participants who were viewing faces with varied attractiveness and expressions. We found that attractiveness and expression were reflected by two early components, P2-lateral (P2l) and P2-medial (P2m), respectively; their interaction effect was reflected by LPP, a late component. The findings suggested that facial attractiveness and expression are first processed in parallel for discrimination between stimuli. After the initial processing, more attentional resources are allocated to the faces with the most positive or most negative valence in both the attractiveness and expression dimensions. The findings contribute to the theoretical model of face perception.

No MeSH data available.


Related in: MedlinePlus

Main effect of level of expression. Waveforms are shown in the representative channels 52 (medial central), 72 (medial parietal), 75 (medial central-parietal), and 123 (right frontal) according to Table 1. The shadowed bars represent the time windows' detecting significance. Please notice that the interval of 450–725 ms is not covered to avoid overlap with the interaction effect between Level of Attractiveness and Level of Expression. For the same reason, the 2D topographies are shown for the amplitudes averaged within the intervals 150–305 ms (150–205 ms is not shown for simplicity), 365–450 ms and 725–780 ms, respectively. To clarify the difference between different levels of Expression, mean amplitudes averaged across all conditions were removed from the 2D topographies. The small circles locate the representative channels, and the color bar denotes the range of amplitudes (μV). H1, happy; H2, less happy; S2, less sad; S1, sad.
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Figure 3: Main effect of level of expression. Waveforms are shown in the representative channels 52 (medial central), 72 (medial parietal), 75 (medial central-parietal), and 123 (right frontal) according to Table 1. The shadowed bars represent the time windows' detecting significance. Please notice that the interval of 450–725 ms is not covered to avoid overlap with the interaction effect between Level of Attractiveness and Level of Expression. For the same reason, the 2D topographies are shown for the amplitudes averaged within the intervals 150–305 ms (150–205 ms is not shown for simplicity), 365–450 ms and 725–780 ms, respectively. To clarify the difference between different levels of Expression, mean amplitudes averaged across all conditions were removed from the 2D topographies. The small circles locate the representative channels, and the color bar denotes the range of amplitudes (μV). H1, happy; H2, less happy; S2, less sad; S1, sad.

Mentions: The waveforms and 2D topographies for Level of Expression effect are presented in Figure 3. The Level of Expression effect was also found to be significant in voxel clusters within the 80–980 ms time window. To avoid being confused by the interaction between Level of Attractiveness and Level of Expression in the 450–725 ms range and distributed at the medial central-parietal areas (which corresponded to the LPP), the cluster showing a significant Level of Expression effect within the 365–780 ms period was further separated into two clusters covering 365–450 ms and 725–780 ms periods. The first cluster was in the medial centro-parietal region, which showed a positive-going deflection at the 365–450 ms period. This suggested the elicitation of the LPP, of which H1 faces were more positive-going than either S1 or S2 faces, and H2 faces were more positive-going than the S2 faces. Within the cluster at the 725–780 ms interval, H1 faces were more positive-going than S1 faces, and H2 faces were more positive-going than either S1 or S2 faces. Another cluster showing a significant Level of Expression effect was found in the frontal region, which showed a negative-going deflection within the 430–680 ms range. The H2 faces were more negative-going than either S1 or S2 faces.


Are Happy Faces Attractive? The Roles of Early vs. Late Processing.

Sun D, Chan CC, Fan J, Wu Y, Lee TM - Front Psychol (2015)

Main effect of level of expression. Waveforms are shown in the representative channels 52 (medial central), 72 (medial parietal), 75 (medial central-parietal), and 123 (right frontal) according to Table 1. The shadowed bars represent the time windows' detecting significance. Please notice that the interval of 450–725 ms is not covered to avoid overlap with the interaction effect between Level of Attractiveness and Level of Expression. For the same reason, the 2D topographies are shown for the amplitudes averaged within the intervals 150–305 ms (150–205 ms is not shown for simplicity), 365–450 ms and 725–780 ms, respectively. To clarify the difference between different levels of Expression, mean amplitudes averaged across all conditions were removed from the 2D topographies. The small circles locate the representative channels, and the color bar denotes the range of amplitudes (μV). H1, happy; H2, less happy; S2, less sad; S1, sad.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4663264&req=5

Figure 3: Main effect of level of expression. Waveforms are shown in the representative channels 52 (medial central), 72 (medial parietal), 75 (medial central-parietal), and 123 (right frontal) according to Table 1. The shadowed bars represent the time windows' detecting significance. Please notice that the interval of 450–725 ms is not covered to avoid overlap with the interaction effect between Level of Attractiveness and Level of Expression. For the same reason, the 2D topographies are shown for the amplitudes averaged within the intervals 150–305 ms (150–205 ms is not shown for simplicity), 365–450 ms and 725–780 ms, respectively. To clarify the difference between different levels of Expression, mean amplitudes averaged across all conditions were removed from the 2D topographies. The small circles locate the representative channels, and the color bar denotes the range of amplitudes (μV). H1, happy; H2, less happy; S2, less sad; S1, sad.
Mentions: The waveforms and 2D topographies for Level of Expression effect are presented in Figure 3. The Level of Expression effect was also found to be significant in voxel clusters within the 80–980 ms time window. To avoid being confused by the interaction between Level of Attractiveness and Level of Expression in the 450–725 ms range and distributed at the medial central-parietal areas (which corresponded to the LPP), the cluster showing a significant Level of Expression effect within the 365–780 ms period was further separated into two clusters covering 365–450 ms and 725–780 ms periods. The first cluster was in the medial centro-parietal region, which showed a positive-going deflection at the 365–450 ms period. This suggested the elicitation of the LPP, of which H1 faces were more positive-going than either S1 or S2 faces, and H2 faces were more positive-going than the S2 faces. Within the cluster at the 725–780 ms interval, H1 faces were more positive-going than S1 faces, and H2 faces were more positive-going than either S1 or S2 faces. Another cluster showing a significant Level of Expression effect was found in the frontal region, which showed a negative-going deflection within the 430–680 ms range. The H2 faces were more negative-going than either S1 or S2 faces.

Bottom Line: Facial attractiveness is closely related to romantic love.We found that attractiveness and expression were reflected by two early components, P2-lateral (P2l) and P2-medial (P2m), respectively; their interaction effect was reflected by LPP, a late component.The findings suggested that facial attractiveness and expression are first processed in parallel for discrimination between stimuli.

View Article: PubMed Central - PubMed

Affiliation: Laboratory of Neuropsychology, The University of Hong Kong Hong Kong, China.

ABSTRACT
Facial attractiveness is closely related to romantic love. To understand if the neural underpinnings of perceived facial attractiveness and facial expression are similar constructs, we recorded neural signals using an event-related potential (ERP) methodology for 20 participants who were viewing faces with varied attractiveness and expressions. We found that attractiveness and expression were reflected by two early components, P2-lateral (P2l) and P2-medial (P2m), respectively; their interaction effect was reflected by LPP, a late component. The findings suggested that facial attractiveness and expression are first processed in parallel for discrimination between stimuli. After the initial processing, more attentional resources are allocated to the faces with the most positive or most negative valence in both the attractiveness and expression dimensions. The findings contribute to the theoretical model of face perception.

No MeSH data available.


Related in: MedlinePlus