In addition to the suggestions at the link below, note that
nicotine relieves the numbing effects of neuroleptics
in general, sensory overload is a problem
too much noise, too many smells (perfume, dander, ...), lights
that are too bright or flicker
too much demand on attention
enough time to stay focused is an accommodation
and water readily available
http://www.bu.edu/cpr/reasaccom/