Inhalation boosts perceptual awareness and decision speed - IMT Mines Alès Accéder directement au contenu
Article Dans Une Revue Journal of Neurophysiology Année : 2023

Inhalation boosts perceptual awareness and decision speed

Résumé

The emergence of consciousness is one of biology's biggest mysteries. During the last two decades, a major effort has been made to identify the neural correlates of consciousness, but in comparison, little is known about the physiological mechanisms underlying first-person subjective experience. Attention is considered the gateway of information to consciousness. Recent work suggests that the breathing phase ( i.e., inhalation versus exhalation) modulates attention, in such a way that attention directed towards exteroceptive information would increase during inhalation. One key hypothesis emerging from this work is that inhalation would improve perceptual awareness and near-threshold decision-making. The present study directly tested this hypothesis. We recorded the breathing rhythms of thirty humans performing a near-threshold decision-making task, in which they had to decide whether a liminal Gabor was tilted to the right or to the left (objective decision task) and then to rate their perceptual awareness of the Gabor orientation (subjective decision task). In line with our hypothesis, the data revealed that, relative to exhalation, inhalation improves perceptual awareness and speeds up objective decision-making, without impairing accuracy. Overall, the present study builds on timely questions regarding the physiological mechanisms underlying consciousness and shows that breathing shapes the emergence of subjective experience and decision-making.
Fichier sous embargo
Fichier sous embargo
0 3 6
Année Mois Jours
Avant la publication
vendredi 2 août 2024
Fichier sous embargo
vendredi 2 août 2024
Connectez-vous pour demander l'accès au fichier

Dates et versions

hal-04180063 , version 1 (01-09-2023)

Identifiants

Citer

Ludovic Molle, Alexandre Coste, Charles-Etienne Benoit, Gerard Derosiere, Stefan Janaqi, et al.. Inhalation boosts perceptual awareness and decision speed. Journal of Neurophysiology, 2023, 130 (3), pp.516-523. ⟨10.1152/jn.00492.2022⟩. ⟨hal-04180063⟩
56 Consultations
11 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More