Olfactory learning modifies the expression of odour-induced oscillatory responses in the gamma (60–90 Hz) and beta (15–40 Hz) bands in the rat olfactory bulb.
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| Title: | Olfactory learning modifies the expression of odour-induced oscillatory responses in the gamma (60–90 Hz) and beta (15–40 Hz) bands in the rat olfactory bulb. |
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| Authors: | Ravel, Nadine (AUTHOR), Chabaud, Pascal (AUTHOR), Martin, Claire (AUTHOR), Gaveau, Valérie (AUTHOR), Hugues, Etienne (AUTHOR), Tallon‐Baudry, Catherine (AUTHOR), Bertrand, Olivier (AUTHOR), Gervais, Rémi (AUTHOR) |
| Source: | European Journal of Neuroscience. Jan2003, Vol. 17 Issue 2, p350-358. 0p. |
| Subjects: | Olfactory nerve, Mammals, Sensory perception, Memory |
| Abstract: | Abstract This study addressed the question of the possible functional relevance of two different oscillatory activities, beta and gamma (15–40 and 60–90 Hz, respectively) for perception and memory processes in olfactory areas of mammals. Local field potentials were recorded near relay olfactory bulb neurons while rats performed an olfactory discrimination task. Signals reflected the mass activity from this region and characteristics of oscillatory activities were used as an index of local synchrony. Beta and gamma oscillatory activities were quantified by time-frequency methods before during and after odour sampling. In rats early in their training, olfactory sampling was associated with a significant decrease in power in the gamma band in parallel with a weak but significant increase in the beta band (centred on 27 Hz). Several days later, in well-trained rats, the gamma oscillatory depression was significantly enhanced both in duration and amplitude. It appeared within the 500 ms time period preceding odour onset and was further reduced during the odour period. Concurrently the beta oscillatory response (now centred on 24 Hz) during odour sampling was amplified by a twofold factor. The beta band response was modulated according to the chemical nature of the stimuli and rat's behavioural response. This study showed for the first time that odour sampling in behaving animals is associated with a clear shift in the olfactory bulb neuronal activity from a gamma to a beta oscillatory regime. Moreover, the data stress the importance of studying the odour-induced beta activity and its relation to perception and memory. [ABSTRACT FROM AUTHOR] |
| Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 8955076 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Olfactory learning modifies the expression of odour-induced oscillatory responses in the gamma (60–90 Hz) and beta (15–40 Hz) bands in the rat olfactory bulb. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ravel%2C+Nadine%22">Ravel, Nadine</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chabaud%2C+Pascal%22">Chabaud, Pascal</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Martin%2C+Claire%22">Martin, Claire</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gaveau%2C+Valérie%22">Gaveau, Valérie</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hugues%2C+Etienne%22">Hugues, Etienne</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tallon‐Baudry%2C+Catherine%22">Tallon‐Baudry, Catherine</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bertrand%2C+Olivier%22">Bertrand, Olivier</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gervais%2C+Rémi%22">Gervais, Rémi</searchLink> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Journal+of+Neuroscience%22">European Journal of Neuroscience</searchLink>. Jan2003, Vol. 17 Issue 2, p350-358. 0p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Olfactory+nerve%22">Olfactory nerve</searchLink><br /><searchLink fieldCode="DE" term="%22Mammals%22">Mammals</searchLink><br /><searchLink fieldCode="DE" term="%22Sensory+perception%22">Sensory perception</searchLink><br /><searchLink fieldCode="DE" term="%22Memory%22">Memory</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract This study addressed the question of the possible functional relevance of two different oscillatory activities, beta and gamma (15–40 and 60–90 Hz, respectively) for perception and memory processes in olfactory areas of mammals. Local field potentials were recorded near relay olfactory bulb neurons while rats performed an olfactory discrimination task. Signals reflected the mass activity from this region and characteristics of oscillatory activities were used as an index of local synchrony. Beta and gamma oscillatory activities were quantified by time-frequency methods before during and after odour sampling. In rats early in their training, olfactory sampling was associated with a significant decrease in power in the gamma band in parallel with a weak but significant increase in the beta band (centred on 27 Hz). Several days later, in well-trained rats, the gamma oscillatory depression was significantly enhanced both in duration and amplitude. It appeared within the 500 ms time period preceding odour onset and was further reduced during the odour period. Concurrently the beta oscillatory response (now centred on 24 Hz) during odour sampling was amplified by a twofold factor. The beta band response was modulated according to the chemical nature of the stimuli and rat's behavioural response. This study showed for the first time that odour sampling in behaving animals is associated with a clear shift in the olfactory bulb neuronal activity from a gamma to a beta oscillatory regime. Moreover, the data stress the importance of studying the odour-induced beta activity and its relation to perception and memory. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1046/j.1460-9568.2003.02445.x Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 0 StartPage: 350 Subjects: – SubjectFull: Olfactory nerve Type: general – SubjectFull: Mammals Type: general – SubjectFull: Sensory perception Type: general – SubjectFull: Memory Type: general Titles: – TitleFull: Olfactory learning modifies the expression of odour-induced oscillatory responses in the gamma (60–90 Hz) and beta (15–40 Hz) bands in the rat olfactory bulb. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ravel, Nadine – PersonEntity: Name: NameFull: Chabaud, Pascal – PersonEntity: Name: NameFull: Martin, Claire – PersonEntity: Name: NameFull: Gaveau, Valérie – PersonEntity: Name: NameFull: Hugues, Etienne – PersonEntity: Name: NameFull: Tallon‐Baudry, Catherine – PersonEntity: Name: NameFull: Bertrand, Olivier – PersonEntity: Name: NameFull: Gervais, Rémi IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 01 Text: Jan2003 Type: published Y: 2003 Identifiers: – Type: issn-print Value: 0953816X Numbering: – Type: volume Value: 17 – Type: issue Value: 2 Titles: – TitleFull: European Journal of Neuroscience Type: main |
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