title: Concentration effects of green odor on event-related potential (P300) and pleasantness.
abstract: The effects of eight compounds, constituting the so-called "natural green odor", including leaf alcohol, on the event-related potential (P300) were investigated. In experiments with a series of single compounds, each of these eight compounds could be characterized by an overall change consisting predominantly of an increase, a decrease or no change in the amplitude of P300, whereas in experiments with a series of two-component mixtures, noticeable synergism could not be demonstrated, contrary to our expectation. Experiments with leaf alcohol (3Z-hexenol) performed at two concentrations showed a significantly different degree of pleasantness and an increase or decrease in the amplitude of P300 depending on their concentration, suggesting that concentration is important in odorant-presentation studies.
authors.affiliation: Ltd Fragrance Laboratory, Soda Aromatic Co., 4-15-9 Nihonbashi-honcho, Chuo-ku, Tokyo 103-0023, Japan. kouta_sano@soda.toray.co.jp
authors.forename: Kota
authors.initials: K
authors.lastname: Sano
authors.forename: Yasutami
authors.initials: Y
authors.lastname: Tsuda
authors.forename: Hisanobu
authors.initials: H
authors.lastname: Sugano
authors.forename: Shuji
authors.initials: S
authors.lastname: Aou
authors.forename: Akikazu
authors.initials: A
authors.lastname: Hatanaka
mesh_terms: D000293:Adolescent; D000328:Adult; D018913:Event-Related Potentials, P300; D005260:Female; D006801:Humans; D009812:Odorants; D012903:Smell / Q000502:physiology*