Abnormalities in brain systems supporting individuation and enumeration in autism.

ABSTRACT: Previous work indicates that adults with autism display a decreased capacity when rapidly enumerating small sets of elements (i.e., subitizing), compared to typically developing (TD) individuals. This ability is crucial for fundamental visual functions such as object individuation and parallel processing. Thus, the deficit in autism suggests limits in these skills. To examine the neural basis of this limitation, adults with and without high functioning autism rapidly enumerated 1 to 8 randomly located squares during a neuroimaging study. Typically, adults are thought to use parallel visual processes to quantify up to three or four elements, and serial processes to enumerate more (5+) elements. We hypothesized that parietal lobe regions associated with counting would be recruited with small

SUBMITTER: O'Hearn K 

PROVIDER: S-EPMC5705087 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature