Figure 3.

Intact Olfaction in Humans without Apparent OBs

In all panels: control participants in gray, control mean in blue, NAB1 in purple, NAB2 in orange, NAB-CA in green.

(A) Violin plot of Subjective Importance of the Sense of Smell Questionnaire (SISSQ) scores obtained from 150 control participants and the NAB group.

(B) Scores at olfactory threshold (T), discrimination (D), and identification (I) using the Sniffin Sticks test. Here, the normal control reflects published data from ∼700 participants (hence no violin plot).

(C) Total Sniffin Sticks TDI scores. Top and bottom dashed lines reflect cutoffs for normosmia and anosmia, respectively.

(D) Violin plot of percent accuracy at University of Pennsylvania Smell Identification (UPSIT) scores obtained from 88 control participants and the NAB group.

(E) Violin plot of detection threshold scores obtained from 23 control participants and the NAB group for the odorants menthol, PEA (n = 22), isovaleric acid, and limonene.

(F)Violin plot of discrimination accuracy at the enantiomer triangle test obtained from 22 control participants and the NAB group. Dashed line is at 41.8% accuracy, reflecting d′ = 1. All error bars are SD.

See also Figure S12.