Processing of individual items during ensemble coding of facial expressions
Authors: Li, H., Ji, L., Tong, K., Ren, N., Chen, W., Liu, C.H. and Fu, X.
Journal: Frontiers in Psychology
Volume: 7
Issue: SEP
eISSN: 1664-1078
DOI: 10.3389/fpsyg.2016.01332
Abstract:There is growing evidence that human observers are able to extract the mean emotion or other type of information from a set of faces. The most intriguing aspect of this phenomenon is that observers often fail to identify or form a representation for individual faces in a face set. However, most of these results were based on judgments under limited processing resource. We examined a wider range of exposure time and observed how the relationship between the extraction of a mean and representation of individual facial expressions would change. The results showed that with an exposure time of 50 ms for the faces, observers were more sensitive to mean representation over individual representation, replicating the typical findings in the literature. With longer exposure time, however, observers were able to extract both individual and mean representation more accurately. Furthermore, diffusion model analysis revealed that the mean representation is also more prone to suffer from the noise accumulated in redundant processing time and leads to a more conservative decision bias, whereas individual representations seem more resistant to this noise. Results suggest that the encoding of emotional information from multiple faces may take two forms: single face processing and crowd face processing.
Source: Scopus
Processing of Individual Items during Ensemble Coding of Facial Expressions.
Authors: Li, H., Ji, L., Tong, K., Ren, N., Chen, W., Liu, C.H. and Fu, X.
Journal: Front Psychol
Volume: 7
Pages: 1332
ISSN: 1664-1078
DOI: 10.3389/fpsyg.2016.01332
Abstract:There is growing evidence that human observers are able to extract the mean emotion or other type of information from a set of faces. The most intriguing aspect of this phenomenon is that observers often fail to identify or form a representation for individual faces in a face set. However, most of these results were based on judgments under limited processing resource. We examined a wider range of exposure time and observed how the relationship between the extraction of a mean and representation of individual facial expressions would change. The results showed that with an exposure time of 50 ms for the faces, observers were more sensitive to mean representation over individual representation, replicating the typical findings in the literature. With longer exposure time, however, observers were able to extract both individual and mean representation more accurately. Furthermore, diffusion model analysis revealed that the mean representation is also more prone to suffer from the noise accumulated in redundant processing time and leads to a more conservative decision bias, whereas individual representations seem more resistant to this noise. Results suggest that the encoding of emotional information from multiple faces may take two forms: single face processing and crowd face processing.
Source: PubMed
Processing of Individual Items during Ensemble Coding of Facial Expressions
Authors: Li, H., Ji, L., Tong, K., Ren, N., Chen, W., Liu, C.H. and Fu, X.
Journal: FRONTIERS IN PSYCHOLOGY
Volume: 7
ISSN: 1664-1078
DOI: 10.3389/fpsyg.2016.01332
Source: Web of Science (Lite)
Processing of Individual Items during Ensemble Coding of Facial Expressions
Authors: Li, H., Ji, L., Tong, K., Ren, N., Chen, W., Liu, C.H. and Fu, X.
Journal: Frontiers in Psychology
Volume: 7
Pages: 1-11
Publisher: Frontiers Media
ISSN: 1664-1078
DOI: 10.3389/fpsyg.2016.01332
Source: Manual
Processing of Individual Items during Ensemble Coding of Facial Expressions.
Authors: Li, H., Ji, L., Tong, K., Ren, N., Chen, W., Liu, C.H. and Fu, X.
Journal: Frontiers in psychology
Volume: 7
Pages: 1332
eISSN: 1664-1078
ISSN: 1664-1078
DOI: 10.3389/fpsyg.2016.01332
Abstract:There is growing evidence that human observers are able to extract the mean emotion or other type of information from a set of faces. The most intriguing aspect of this phenomenon is that observers often fail to identify or form a representation for individual faces in a face set. However, most of these results were based on judgments under limited processing resource. We examined a wider range of exposure time and observed how the relationship between the extraction of a mean and representation of individual facial expressions would change. The results showed that with an exposure time of 50 ms for the faces, observers were more sensitive to mean representation over individual representation, replicating the typical findings in the literature. With longer exposure time, however, observers were able to extract both individual and mean representation more accurately. Furthermore, diffusion model analysis revealed that the mean representation is also more prone to suffer from the noise accumulated in redundant processing time and leads to a more conservative decision bias, whereas individual representations seem more resistant to this noise. Results suggest that the encoding of emotional information from multiple faces may take two forms: single face processing and crowd face processing.
Source: Europe PubMed Central