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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 41 to 50 of 1676 (0.262 seconds)| 41 |
Indistinguishable odour enantiomers: Differences between peripheral and central-nervous electrophysiological responsesPoletti, Sophia C., Cavazzana, Annachiara, Guducu, Cagdas, Larsson, Maria, Hummel, Thomas 04 December 2017 (has links) (PDF)
The ability of humans to discriminate enantiomeric odour pairs is substance –specific. Current literature suggests that psychophysical discrimination of odour enantiomers mainly depends on the peripheral processing at the level of the olfactory sensory neurons (OSN). To study the influence of central processing in discrimination, we investigated differences in the electrophysiological responses to psychophysically indistinguishable (+)- and (−)- rose oxide enantiomers at peripheral and central-nervous levels in humans. We recorded the electro-olfactogram (EOG) from the olfactory epithelium and the EEG-derived olfactory event-related potentials (OERP). Results from a psychophysical three alternative forced choice test indicated indistinguishability of the two odour enantiomers. In a total of 19 young participants EOG could be recorded in 74 and OERP in 95% of subjects. Significantly different EOG amplitudes and latencies were recorded in response to the 2 stimuli. However, no such differences in amplitude or latency emerged for the OERP. In conclusion, although the pair of enantiomer could be discriminated at a peripheral level this did not lead to a central-nervous/cognitive differentiation of the two stimuli.
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Spiegel-Ei08 November 2019 (has links)
No description available.
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Spiegel-Ei08 November 2019 (has links)
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Spiegel-Ei08 November 2019 (has links)
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Spiegel-Ei08 November 2019 (has links)
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Spiegel-Ei08 November 2019 (has links)
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Spiegel-Ei08 November 2019 (has links)
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Spiegel-Ei08 November 2019 (has links)
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Spiegel-Ei08 November 2019 (has links)
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Spiegel-Ei08 November 2019 (has links)
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