1. The function of fear chemosignals: Preparing for danger
- Author
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Gün R. Semin and Nuno Gomes
- Subjects
Physiology ,media_common.quotation_subject ,Pheromones, Human ,Affect (psychology) ,050105 experimental psychology ,03 medical and health sciences ,Behavioral Neuroscience ,0302 clinical medicine ,Physiology (medical) ,Animals ,Humans ,0501 psychology and cognitive sciences ,Sweat ,Animal species ,media_common ,05 social sciences ,Original Articles ,Fear ,Olfaction ,Sensory Systems ,Fear chemosignals ,Threat detection ,Eye-tracking ,Psychology ,030217 neurology & neurosurgery ,Vigilance (psychology) ,Cognitive psychology - Abstract
It has been shown that the presence of conspecifics modulates human's vigilance strategies as is the case with animal species. Mere presence has been found to reduce vigilance. However, animal research has also shown that chemosignals (e.g., sweat) produced during fear-inducing situations modulates individuals' threat detection strategies. In the case of humans, little is known about how exposure to conspecifics' fear chemosignals modulates vigilance and threat detection effectiveness. The present study (N= 59) examined how human fear chemosignals affect vigilance strategies and threat avoidance in its receivers. We relied on a paradigm that simulates a "foraging under threat" situation in the lab, integrated with an eye-tracker to examine the attention allocation. Our results showed that the exposure to fear chemosignals (vs. rest chemosignals and a no-sweat condition) while not changing vigilance behavior leads to faster answers to threatening events. In conclusion, fear chemosignals seem to constitute an important warning signal for human beings, possibly leading its receiver to a readiness state that allows faster reactions to threat-related events. Fundação para a Ciência e Tecnologia - FCT info:eu-repo/semantics/acceptedVersion
- Published
- 2021