The effect of early experience on odor perception in humans: Psychological and physiological correlates
Johan Poncelet
(1)
,
Fanny Rinck
(2)
,
Fanny Bourgeat
(1)
,
Benoist Schaal
(3)
,
Catherine Rouby
(1)
,
Moustafa Bensafi
(1)
,
Thomas Hummel
(4)
Fanny Rinck
- Fonction : Auteur
- PersonId : 13982
- IdHAL : fanny-rinck
- ORCID : 0000-0002-3660-0716
- IdRef : 113068697
Benoist Schaal
- Fonction : Auteur
- PersonId : 741550
- IdHAL : benoist-schaal
- ORCID : 0000-0002-9419-3282
- IdRef : 035793627
Catherine Rouby
- Fonction : Auteur
- PersonId : 757746
- ORCID : 0000-0002-5683-5491
- IdRef : 060964510
Moustafa Bensafi
- Fonction : Auteur
- PersonId : 741755
- IdHAL : moustafa-bensafi
- ORCID : 0000-0002-2991-3036
- IdRef : 060964766
Thomas Hummel
- Fonction : Auteur
- PersonId : 756572
- ORCID : 0000-0001-9713-0183
- IdRef : 112135234
Résumé
The olfactory function in humans is characterized by wide variability between individuals. One of the prominent factors that contribute to this plasticity is early exposure. The present study examined how brain activity is modulated by such olfactory experience. To this end, two groups of people living in France but originating from different cultures ("European-French" (EF, 18 subjects) vs. "Algerian-French" (AF, 19 subjects)) were tested, and their perceptual and physiological responses to the smells of mint (presumed to be experienced earlier in life by "Algerian-French" subjects) and of rose (control odorant) were compared. Neurophysiological responses were obtained in the form of chemosensory event-related potentials (CSERP). The results confirmed that the AF group was exposed to Mint tea earlier than the EF group. On the perceptual level, when asked to associate the smell of mint with objects or events retrieved from memory, the discourse of AF subjects included more "experience-oriented" associations than that of EF subjects. This was associated with longer P2 latency in CSERPs in response to the smell of mint in the AF group. These findings highlight the plasticity of behavioral and neural olfactory processes as a result of differential lifetime exposure.
Format du dépôt | Notice |
---|---|
Type de dépôt | Article dans une revue |
Titre |
en
The effect of early experience on odor perception in humans: Psychological and physiological correlates
|
Résumé |
en
The olfactory function in humans is characterized by wide variability between individuals. One of the prominent factors that contribute to this plasticity is early exposure. The present study examined how brain activity is modulated by such olfactory experience. To this end, two groups of people living in France but originating from different cultures ("European-French" (EF, 18 subjects) vs. "Algerian-French" (AF, 19 subjects)) were tested, and their perceptual and physiological responses to the smells of mint (presumed to be experienced earlier in life by "Algerian-French" subjects) and of rose (control odorant) were compared. Neurophysiological responses were obtained in the form of chemosensory event-related potentials (CSERP). The results confirmed that the AF group was exposed to Mint tea earlier than the EF group. On the perceptual level, when asked to associate the smell of mint with objects or events retrieved from memory, the discourse of AF subjects included more "experience-oriented" associations than that of EF subjects. This was associated with longer P2 latency in CSERPs in response to the smell of mint in the AF group. These findings highlight the plasticity of behavioral and neural olfactory processes as a result of differential lifetime exposure.
|
Auteur(s) |
Johan Poncelet
1
, Fanny Rinck
2
, Fanny Bourgeat
1
, Benoist Schaal
3
, Catherine Rouby
1
, Moustafa Bensafi
1
, Thomas Hummel
4
1
Neurosciences Sensorielles Comportement Cognition
( 550 )
- 50 avenue Tony Garnier 69366 LYON CEDEX 07
- France
2
MoDyCo -
Modèles, Dynamiques, Corpus
( 1057 )
- Université Paris Nanterre Bâtiment A - Bureau 402 A 200, avenue de la République 92001 Nanterre Cedex
- France
3
CSGA -
Centre des Sciences du Goût et de l'Alimentation [Dijon]
( 1005269 )
- Université de Bourgogne - Bât. CSG - 9E Bd Jeanne d'Arc - 21000 Dijon
- France
4
Smell and Taste Clinic University of Dresden Medical School
( 14651 )
- Smell and Tast Clinic Dept. of Otorhinolaryngology University of Dresden Medical Schaal Dresden Germany
- Allemagne
|
Page/Identifiant |
458-465
|
Numéro |
2
|
Volume |
2
|
Date de publication |
2010
|
Comité de lecture |
Oui
|
Audience |
Non spécifiée
|
Vulgarisation |
Non
|
Nom de la revue |
|
Langue du document |
Français
|
Public visé |
Scientifique
|
Version du document |
version éditeur
|
Domaine(s) |
|
Voir aussi |
|
Mots-clés |
en
Psychophysics, Cross-cultural differences, Human olfaction, Early experience, Electrophysiology
|
DOI | 10.1016/j.bbr.2009.12.011 |
ProdINRA | 309315 |
UT key WOS | 000276621200021 |
Loading...