Adaptation to different mouth shapes influences visual perception of ambiguous lip speech

Jones, B.C. , Feinberg, D.R., Bestelmeyer, P.E.G., Debruine, L.M. and Little, A.C. (2010) Adaptation to different mouth shapes influences visual perception of ambiguous lip speech. Psychonomic Bulletin and Review, 17(4), pp. 522-528. (doi: 10.3758/PBR.17.4.522)

Abstract

We investigated the effects of adaptation to mouth shapes associated with different spoken sounds (sustained /m/ or /u/) on visual perception of lip speech. Participants were significantly more likely to label ambiguous faces on an /m/-to-/u/ continuum as saying /u/ following adaptation to /m/ mouth shapes than they were in a preadaptation test. By contrast, participants were significantly less likely to label the ambiguous faces as saying /u/ following adaptation to /u/ mouth shapes than they were in a preadaptation test. The magnitude of these aftereffects was equivalent when the same individual was shown in the adaptation and test phases of the experiment and when different individuals were presented in the adaptation and test phases. These findings present novel evidence that adaptation to natural variations in facial appearance influences face perception, and they extend previous research on face aftereffects to visual perception of lip speech.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Bestelmeyer, Dr Patricia and DeBruine, Professor Lisa and Jones, Professor Benedict
• Authors: Jones, B.C., Feinberg, D.R., Bestelmeyer, P.E.G., Debruine, L.M., and Little, A.C.
• College/School: College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
• Journal Name: Psychonomic Bulletin and Review
• Publisher: Springer
• ISSN: 1069-9384
• ISSN (Online): 1531-5320