Bimodal familiarization re-sensitizes 12-month-old infants to other-race faces |
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| Affiliation: | 1. Department of Developmental Psychology, Giessen University, Germany;2. Potsdam University, Germany;1. Psychology Department, Pace University, New York, NY 10004, United States;2. Pennsylvania State University, Brandywine, Department of Human Development and Family Studies, 25 Yearsley Mill Road, Media, PA 19063, United States;1. International Doctoral School, University of Seville, Spain;2. Department of Personality, Evaluation and Psychological Treatment of the Faculty of Psychology, University of Seville, Grupo de Investigación Pediatría Integral y Psicología Pediátrica (CTS-152), Spain;3. Virgen del Rocío University Hospital, Seville, Spain;1. Faculty of Humanities, Logopedics, Child Language Research Center, University of Oulu, Oulu, Finland;2. Sanapolku Oy, Therapy Center, Kouvola, Finland;3. Attentio Oy, Therapy Center, Oulu, Finland;4. Unit of Child Psychiatry, Health Care Services for Families with Children, Family Services, Kainuu Social and Health Care Joint Authority, Kajaani, Finland;5. PEDEGO Research Unit, Clinic of Child Psychiatry, University of Oulu, Oulu, Finland;6. Department of Psychology, University of Massachusetts, Boston, USA |
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| Abstract: | Perceptual narrowing in the domain of face perception typically begins to reduce infants’ sensitivity to differences distinguishing other-race faces from approximately 6 months of age. The present study investigated whether it is possible to re-sensitize Caucasian 12-month-old infants to other-race Asian faces through statistical learning by familiarizing them with different statistical distributions of these faces. The familiarization faces were created by generating a morphed continuum from one Asian face identity to another. In the unimodal condition, infants were familiarized with a frequency distribution wherein they saw the midpoint face of the morphed continuum the most frequently. In the bimodal condition, infants were familiarized with a frequency distribution wherein they saw faces closer to the endpoints of the morphed continuum the most frequently. After familiarization, infants were tested on their discrimination of the two original Asian faces. The infants’ looking times during the test indicated that infants in the bimodal condition could discriminate between the two faces, while infants in the unimodal condition could not. These findings therefore suggest that 12-month-old Caucasian infants could be re-sensitized to Asian faces by familiarizing them with a bimodal frequency distribution of such faces. |
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| Keywords: | Bimodal Unimodal Familiarization Statistical learning Infant Face discrimination |
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