感じ方・記憶・気分

Does exposure to sweat collected during dental treatment change sensitivity to another odor? We explore an experiment with 36 people alongside analyses of the sweat's smell and chemical constituents.

A study of 909 people in 16 regions examined odor perception across 12 dimensions. Region was more strongly associated with intensity ratings than pleasantness. We explore what the roughly 10% explained by region means and why it cannot be generalized to national preferences.

What happens to breathing and heart rate when you smell a scent you like? A 30-person experiment helps distinguish physiological measurements, brain activity, and the relaxation people actually feel.

People can differ greatly in how intensely they perceive the same musk. A study analyzing 1,357 people in China and New York helps explain differences in odor receptors and what genes alone cannot account for.

A four-week trial combining forest-associated scent with hypnosis audio increased subjective calmness compared with rest alone. However, a distinct benefit from adding scent and conditioning that later allowed scent alone to evoke calmness were not established.

A scent trial at four dental practices enrolled 515 people and analyzed 486, finding no statistically clear overall difference in anxiety. We distinguish additional analyses in women and other groups, scent types, and the conditions of real clinical settings.

A 24-hour nasal-airflow study found differences in within-breath peaks and sleep patterns in congenital anosmia, not a validated diagnostic test.

Nineteen people evaluated 10 fresh rose cultivars. Chemical analyses explored how rose typicality and pleasantness relate to complex mixtures rather than single ingredients.

An olfactory priming task linked perfumes with faster responses to relaxing or energizing words, without establishing physiological or therapeutic effects.

A study of 58 women explored how three similarly liked perfumes related to everyday mood. Most findings were exploratory, not proof of lasting benefits.