We know from thirty years of behavioural studies that attention is
abnormal in autism. One aspect of this abnormality can be
characterised as a deficit in rapid shifting of the scope and focus of
attention. Although a great deal of behavioural data has accumulated,
the physiological basis of this deficit has remained unclear.
`fMRI Evidence for Generalised Arousal as a Substitute for Early Selection in Autism during Conditions of Shifting Visual Spatial Attention', Matthew Belmonte, 10 November 2001
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