catatonia-like conditions in AD.
catatonia-like deterioration in a small minority of people
with autism spectrum disorders (ASDs), some catatonia-like and some parkinsonism- like features become....

http://affect.media.mit.edu/Rgrads/Articles/pdfs/Shah+Wing-2006-Catatonia.pdf

The psychological dysfunctions that may underlie catatonia-like deterioration in ASD..

http://www.websciences.org/cftemplate/NAPS/archives/indiv.cfm?ID=20062088

Catatonia and autism spectrum disorders..
Catatonia Like Deterioration..

Associated with wide range of disorders
including ASD..

http://www.nas.org.uk/content/1/c4/78/98/FridayResearchPolicy_LWing&AShah.pdf