Distinct patterns of human olfactory learning: specificity, transfer, and persistence across odorant types

A total of 96 healthy non-smoking participants were recruited for the study, of which 48 completed the pretest, training and post-training tests, and the remaining 48 provided ratings for odor stimuli valence, intensity and similarity.

The experimental data includes: Unilateral olfactory discrimination accuracy (triangle task); Subjective rating of odor intensity and valence (7-point Likert scale) in pretest and post-training tests; Discrimination accuracy from multiple post-training tests (including Days N, N+1, N+3, N+7, and N+14); Rating data on the valence, intensity, and perceptual similarity of different odor stimuli (7-point Likert scale).