UNIGE document Scientific Article
previous document  unige:90445  next document
add to browser collection

Sweet reward increases implicit discrimination of similar odors

Porcherot, Christelle
Cayeux, Isabelle
Published in Frontiers in behavioral neuroscience. 2014, vol. 8
Abstract Stimuli associated with emotional events signal the presence of potentially relevant situations, thus learning to rapidly identify this kind of stimuli can be highly beneficial. It has been demonstrated that individuals acquire a better perceptual representation of stimuli associated with negative and threatening emotional events. Here we investigated whether the same process occurs for stimuli associated with positive and rewarding emotional events. We used an appetitive Pavlovian conditioning paradigm during which one of two perceptually non-distinguishable odors was associated with a rewarding taste (i.e., chocolate). We investigated whether appetitive conditioning could improve the recognition of the odor associated with the reward, rendering it discriminable from its similar version that was never associated with the reward. Results revealed a dissociation between explicit perception and physiological reactions. Although participants were not able to explicitly perceive a difference, they reacted faster, inhaled more and had higher skin conductance responses when confronted with the reward-associated odor compared to its similar version that was never associated with the reward. Our findings have demonstrated that positive emotional associations can improve the implicit perceptual representation of odors, by triggering different physiological responses to odors that do not seem to be otherwise distinguishable.
Full text
Research groups Affective sciences
Emergence et expression de l'émotion (E3 Lab)
(ISO format)
POOL, Eva et al. Sweet reward increases implicit discrimination of similar odors. In: Frontiers in behavioral neuroscience, 2014, vol. 8. doi: 10.3389/fnbeh.2014.00158 https://archive-ouverte.unige.ch/unige:90445

337 hits



Deposited on : 2016-12-15

Export document
Format :
Citation style :