Fig. 2.

Odor pleasantness ratings (±SE) for suprathreshold concentrations of amyl acetate in patients with schizophrenia, first-degree unaffected relatives, and healthy comparison subjects. Note: Participants were presented with 4 odor concentrations (from strongest to weakest: −1.00, −2.00, −3.00, and −4.00 log vol/vol) to each nostril 5 times in counterbalanced order for a total of 40 trial