Attentional Modulation of Central Odor Processing
| Autor: | Philipp Schott, Roman Ferstl, Kerstin Krauel, Bernfried Sojka, Bettina M. Pause |
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| Rok vydání: | 1998 |
| Předmět: |
Adult
Male Physiology Acyclic Monoterpenes media_common.quotation_subject Olfaction Gating Behavioral Neuroscience Physiology (medical) Perception Eugenol Attentional modulation Humans Attention Oddball paradigm media_common Terpenes Electroencephalography Olfactory Pathways Sensory Systems Odor Olfactometer Odorants Monoterpenes Female Psychology Neuroscience psychological phenomena and processes Vigilance (psychology) |
| Zdroj: | Chemical Senses. 23:423-432 |
| ISSN: | 1464-3553 0379-864X |
| DOI: | 10.1093/chemse/23.4.423 |
| Popis: | Two studies were conducted to investigate the influence of attention on the components of the chemosensory event-related potential (CSERP). In the first study the odors linalool and eugenol were delivered to six male subjects, in the second study three male and two female subjects were presented with their own body odor (axillary hair) and the body odor of a same sex donor. In both studies the odors were presented in an oddball paradigm under ignore and attend conditions via a constant-flow olfactometer. In the ignore condition attention was diverted from the odors with a distractor task, while in the attend condition the subjects were asked to respond to the infrequently occurring odor. In both studies the allocation of attention led to a decrease in the latency of the early components (N1, P2, N2) and to an increase in the amplitude of the late positivities. The modulation of the early components suggests that attentional gating in olfaction might already be effective at an early processing level. |
| Databáze: | OpenAIRE |
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