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What Do Infants See in Faces? ERP Evidence of Different Roles of Eyes and Mouth for Face Perception in 9-Month-Old Infants

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Title: What Do Infants See in Faces? ERP Evidence of Different Roles of Eyes and Mouth for Face Perception in 9-Month-Old Infants
Language: English
Authors: Key, Alexandra P. F., Stone, Wendy, Williams, Susan M.
Source: Infant and Child Development. Mar-Apr 2009 18(2):149-162.
Availability: Wiley-Blackwell. 111 River Street, Hoboken, NJ 07030-5774. Tel: 800-825-7550; Tel: 201-748-6645; Fax: 201-748-6021; e-mail: subinfo@wiley.com; Web site: http://www3.interscience.wiley.com/browse/?type=JOURNAL
Peer Reviewed: Y
Physical Description: PDF
Page Count: 14
Publication Date: 2009
Document Type: Journal Articles
Reports - Research
Descriptors: Infants, Brain, Cognitive Processes, Human Body, Communication Skills, Interpersonal Competence, Photography, Nonverbal Communication, Task Analysis, Diagnostic Tests, Responses, Language Skills, Correlation
DOI: 10.1002/icd.600
ISSN: 1522-7227
Abstract: The study examined whether face-specific perceptual brain mechanisms in 9-month-old infants are differentially sensitive to changes in individual facial features (eyes versus mouth) and whether sensitivity to such changes is related to infants' social and communicative skills. Infants viewed photographs of a smiling unfamiliar female face. On 30% of the trials, either the eyes or the mouth of that face were replaced by corresponding parts from a different female. Visual event-related potentials were recorded to examine face-sensitive brain responses. Results revealed that increased competence in expressive communication and interpersonal relationships was associated with a more mature response to faces, as reflected in a larger occipito-temporal N290 with shorter latency. Both eye- and mouth changes were detected, though infants derived different information from these features. Eye changes had a greater impact on the face perception mechanisms and were not correlated with social or communication development, whereas mouth changes had a minimal impact on face processing but were associated with levels of language and communication understanding. (Contains 4 figures and 1 table.)
Abstractor: As Provided
Number of References: 49
Entry Date: 2009
Accession Number: EJ859126
Database: ERIC
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  Data: Wiley-Blackwell. 111 River Street, Hoboken, NJ 07030-5774. Tel: 800-825-7550; Tel: 201-748-6645; Fax: 201-748-6021; e-mail: subinfo@wiley.com; Web site: http://www3.interscience.wiley.com/browse/?type=JOURNAL
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  Data: The study examined whether face-specific perceptual brain mechanisms in 9-month-old infants are differentially sensitive to changes in individual facial features (eyes versus mouth) and whether sensitivity to such changes is related to infants' social and communicative skills. Infants viewed photographs of a smiling unfamiliar female face. On 30% of the trials, either the eyes or the mouth of that face were replaced by corresponding parts from a different female. Visual event-related potentials were recorded to examine face-sensitive brain responses. Results revealed that increased competence in expressive communication and interpersonal relationships was associated with a more mature response to faces, as reflected in a larger occipito-temporal N290 with shorter latency. Both eye- and mouth changes were detected, though infants derived different information from these features. Eye changes had a greater impact on the face perception mechanisms and were not correlated with social or communication development, whereas mouth changes had a minimal impact on face processing but were associated with levels of language and communication understanding. (Contains 4 figures and 1 table.)
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