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Breath chemical markers of sexual arousal in humans

MPS-Authors
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Wang,  N.
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Pugliese,  G.
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Li,  M.
Multiphase Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Williams,  J.
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Citation

Wang, N., Pugliese, G., Carrito, M., Moura, C., Vasconcelos, P., Cera, N., et al. (2022). Breath chemical markers of sexual arousal in humans. Scientific Reports, 12: 6267. doi:10.1038/s41598-022-10325-6.


Cite as: https://hdl.handle.net/21.11116/0000-000A-631E-6
Abstract
The chemical composition of exhaled breath was examined for volatile organic compound (VOC) indicators of sexual arousal in human beings. Participants (12-male, 12-female) were shown a randomized series of three emotion-inducing 10-min film clips interspersed with 3-min neutral film clips. The films caused different arousals: sports film (positive-nonsexual); horror film (negative-nonsexual); and erotic (sexual) that were monitored with physiological measurements including genital response and temperature. Simultaneously the breath was monitored for VOC and CO2. While some breath compounds (methanol and acetone) changed uniformly irrespective of the film order, several compounds did show significant arousal associated changes. For both genders CO2 and isoprene decreased in the sex clip. Some male individuals showed particularly strong increases of indole, phenol and cresol coincident with sexual arousal that decreased rapidly afterwards. These VOCs are degradation products of tyrosine and tryptophan, precursors for dopamine, noradrenalin, and serotonin, and therefore represent potential breath markers of sexual arousal.