Do different experimental tasks affect psychophysical measurements of motion perception in autism-spectrum disorder? An analysis

TitleDo different experimental tasks affect psychophysical measurements of motion perception in autism-spectrum disorder? An analysis
Publication TypeJournal Article
Year of Publication2018
AuthorsBakroon, A., and V. Lakshminarayanan
JournalClinical Optometry
Volume10
Pagination131-143
KeywordsAutism-spectrum disorder, Biological motion, Form perception, Global motion, High-functioning autism, Local motion, Motion perception, Random-dot kinematogram
Abstract

There is a rapid increase in the number of individuals with high-functioning autism (HFA). Research on motion perception in HFA has shown deficits in processing motion information at the higher visual cortical areas (V5/middle temporal). Several hypotheses have been put forth to explain these deficits as being due to enhanced processing of small details at the expense of the global picture or as a global integration abnormality. However, there is a lot of variability in the results obtained from experiments designed to study motion in adults with autism. These could be due to the inherent diagnostic differences within even the same range of the autism spectrum and/or due to comparison of different experimental paradigms whose processing by the same visual neural areas could be different. In this review, we discuss the various results on motion processing in HFA, as well as the theories of motion perception in autism. © 2018 Bakroon and Lakshminarayanan.

DOI10.2147/OPTO.S179336