Concentration effects of green odor on event-related potential (P300) and pleasantness.
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.
Sano
Kota
K
Ltd Fragrance Laboratory, Soda Aromatic Co., 4-15-9 Nihonbashi-honcho, Chuo-ku, Tokyo 103-0023, Japan. kouta_sano@soda.toray.co.jp
Tsuda
Yasutami
Y
Sugano
Hisanobu
H
Aou
Shuji
S
Hatanaka
Akikazu
A
D000293:Adolescent; D000328:Adult; D018913:Event-Related Potentials, P300; D005260:Female; D006801:Humans; D009812:Odorants; D012903:Smell / Q000502:physiology*