Mechanisms of scent-tracking in humans
J Porter, B Craven, RM Khan, SJ Chang, I Kang… - Nature …, 2007 - nature.com
Nature neuroscience, 2007•nature.com
Whether mammalian scent-tracking is aided by inter-nostril comparisons is unknown. We
assessed this in humans and found that (i) humans can scent-track,(ii) they improve with
practice,(iii) the human nostrils sample spatially distinct regions separated by∼ 3.5 cm and,
critically,(iv) scent-tracking is aided by inter-nostril comparisons. These findings reveal
fundamental mechanisms of scent-tracking and suggest that the poor reputation of human
olfaction may reflect, in part, behavioral demands rather than ultimate abilities.
assessed this in humans and found that (i) humans can scent-track,(ii) they improve with
practice,(iii) the human nostrils sample spatially distinct regions separated by∼ 3.5 cm and,
critically,(iv) scent-tracking is aided by inter-nostril comparisons. These findings reveal
fundamental mechanisms of scent-tracking and suggest that the poor reputation of human
olfaction may reflect, in part, behavioral demands rather than ultimate abilities.
Abstract
Whether mammalian scent-tracking is aided by inter-nostril comparisons is unknown. We assessed this in humans and found that (i) humans can scent-track,(ii) they improve with practice,(iii) the human nostrils sample spatially distinct regions separated by∼ 3.5 cm and, critically,(iv) scent-tracking is aided by inter-nostril comparisons. These findings reveal fundamental mechanisms of scent-tracking and suggest that the poor reputation of human olfaction may reflect, in part, behavioral demands rather than ultimate abilities.
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