感じ方・記憶・気分

With eucalyptol, EEG responses became more similar across people watching the same videos. Limonene did not produce the same result in this study of a potential measure for assessing fragrances.

Perfumers and flavorists used more odor-quality terms and chemical names. This study of 64 people examined pleasantness judgments separately from the language used to describe odors.

In 24 young adults, nasal breathing during an hour of rest after learning improved odor recognition compared with mouth breathing. The study tests consolidation, not a home breathing treatment.

A study normalized skatole concentrations to individual detection thresholds to examine shifts in odor quality and modeled indoor acceptability.

Raters judged unfragranced odors from actual couples more similar than recombined pairs, but the overall couple-level analysis was not significant. The study also explored contraception and relationship satisfaction.

Home-use trials of shampoos with identical bases found fragrance-related differences mainly in the feel of the neat product and during washing. Results after multiple-testing correction were more limited for wet and dry hair.

OR7D4 variants help explain differences in androstenone perception. Cell experiments and human tests connect receptor function with intensity, pleasantness, and detection.

A study of OR5AN1 links genetic variation with some musk ratings and muscone detection, while neighboring OR5A1 helps explain a contrasting association with β-ionone.

Very dilute acetic or butyric acid improved detection of maple lactone mixtures beyond independent-detection predictions within a particular concentration range.

Across 198 binary mixtures, pleasantness often shifted toward the stronger component, but exceptions such as vanillin complicated the pattern.