Open AccessThe effect of spatial frequency and face inversion on facial expression processing in children with autism spectrum disorder
Author(s) -
Kikuchi Yukiko,
Senju Atsushi,
Hasegawa Toshikazu,
Tojo Yoshikuni,
Osanai Hiroo
Publication year - 2013
Publication title -
japanese psychological research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 30
eISSN - 1468-5884
pISSN - 0021-5368
DOI - 10.1111/jpr.12000
Subject(s) - facial expression , psychology , autism spectrum disorder , spatial frequency , nonverbal communication , audiology , inversion (geology) , autism , developmental psychology , communication , optics , physics , medicine , biology , paleontology , structural basin
Abstract To investigate whether facial expression processing in children with autism spectrum disorder ( ASD ) is based on local information of the stimuli, we prepared low spatial frequency ( LSF ) images with blurred facial features and high spatial frequency ( HSF ) images with rich facial features from broad (normal) spatial frequency ( BSF ) images. Eighteen children with ASD (mean age 11.9 years) and 19 typically developing ( TD ) children (mean age 11.4 years) matched on nonverbal IQ were presented these stimuli in upright and inverted orientations. The children with ASD had difficulty in processing facial expressions from the BSF and LSF images, but not from the HSF images. In addition, the BSF and HSF images elicited the inversion effect in the TD children, but not in the children with ASD . In contrast, the LSF images elicited the inversion effect in both groups of children. These results suggest that children with ASD are biased towards processing facial expression based on local information, even though their capacity to process facial expressions configurally is spared.