感じ方・記憶・気分

After same-sex handshakes, people spent more time bringing their right hand toward their nose. Skin-compound transfer, nasal airflow, and odor manipulations shed light on a possible olfactory role.

The study compared training on mixture ratios, enantiomers, and concentration differences. Mixture discrimination transferred to other ingredients and the opposite nostril, with improvement lasting two weeks.

Older Japanese adults rated odor-evoked memories as more pleasant and vivid than younger adults. The study examined seven dimensions, including nostalgia.

Citral masked caproic acid in some measures, yet lemon-like quality and brain activity still differed. Reward-associated feedback did not improve discrimination.

A small experiment found that pleasantness and the desire for another sniff changed differently with repetition, with different patterns in men and women.

Removing an ingredient or changing its proportion can reshape a mixture. Experiments in humans and rabbit pups explore perceiving the whole while retaining information about its parts.

After six encounters on separate days, lilac and shampoo became more pleasant. Unpleasant odors and an initially very pleasant scent showed no clear increase.

A study of 24 older adults explored how personally meaningful odors relate to memory, comfort, and brain activity, including connections with visual regions.

In 14 women, resting-state fMRI tracked lavender exposure and the following two hours. Brain-network changes and perceived relaxation did not tell the same story.

A study of 10 people with vivid odor-related memories measured recall, PET brain activity, and blood cytokines to explore how these responses were related.