Adaptation changes the direction tuning of macaque MT neurons.
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| Title: | Adaptation changes the direction tuning of macaque MT neurons. |
|---|---|
| Authors: | Kohn, Adam, Anthony Movshon, J. |
| Source: | Nature Neuroscience. Jul2004, Vol. 7 Issue 7, p764-772. 9p. |
| Subjects: | Neurons, Physiological adaptation, Neural circuitry adaptation, Visual cortex, Macaques, Neurophysiology, Neurosciences |
| Abstract: | Prolonged exposure to a stimulus, called 'adaptation', reduces cortical responsiveness. Adaptation has been studied extensively in primary visual cortex (V1), where responsivity is usually reduced most when the adapting and test stimuli are well matched. Theories about the functional benefits of adaptation have relied on this specificity, but the resultant changes in neuronal tuning are of the wrong type to account for well-documented perceptual aftereffects. Here we have used moving sinusoidal gratings to study the effect of adaptation on the direction tuning of neurons in area MT in macaques. Responsivity in MT is maintained best in the adapted direction and is strongly reduced for nearby directions. Consequently, adaptation in the preferred direction reduces the direction-tuning bandwidth, whereas adaptation at near-preferred directions causes tuning to shift toward the adapted direction. This previously unknown effect of adaptation is consistent with perceptual aftereffects and indicates that different cortical regions may adjust to constant sensory input in distinct ways. [ABSTRACT FROM AUTHOR] |
| Copyright of Nature Neuroscience is the property of Springer Nature 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 |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 13580005 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Adaptation changes the direction tuning of macaque MT neurons. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kohn%2C+Adam%22">Kohn, Adam</searchLink><br /><searchLink fieldCode="AR" term="%22Anthony+Movshon%2C+J%2E%22">Anthony Movshon, J.</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Nature+Neuroscience%22">Nature Neuroscience</searchLink>. Jul2004, Vol. 7 Issue 7, p764-772. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Neurons%22">Neurons</searchLink><br /><searchLink fieldCode="DE" term="%22Physiological+adaptation%22">Physiological adaptation</searchLink><br /><searchLink fieldCode="DE" term="%22Neural+circuitry+adaptation%22">Neural circuitry adaptation</searchLink><br /><searchLink fieldCode="DE" term="%22Visual+cortex%22">Visual cortex</searchLink><br /><searchLink fieldCode="DE" term="%22Macaques%22">Macaques</searchLink><br /><searchLink fieldCode="DE" term="%22Neurophysiology%22">Neurophysiology</searchLink><br /><searchLink fieldCode="DE" term="%22Neurosciences%22">Neurosciences</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Prolonged exposure to a stimulus, called 'adaptation', reduces cortical responsiveness. Adaptation has been studied extensively in primary visual cortex (V1), where responsivity is usually reduced most when the adapting and test stimuli are well matched. Theories about the functional benefits of adaptation have relied on this specificity, but the resultant changes in neuronal tuning are of the wrong type to account for well-documented perceptual aftereffects. Here we have used moving sinusoidal gratings to study the effect of adaptation on the direction tuning of neurons in area MT in macaques. Responsivity in MT is maintained best in the adapted direction and is strongly reduced for nearby directions. Consequently, adaptation in the preferred direction reduces the direction-tuning bandwidth, whereas adaptation at near-preferred directions causes tuning to shift toward the adapted direction. This previously unknown effect of adaptation is consistent with perceptual aftereffects and indicates that different cortical regions may adjust to constant sensory input in distinct ways. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Nature Neuroscience is the property of Springer Nature 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: 10.1038/nn1267 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 764 Subjects: – SubjectFull: Neurons Type: general – SubjectFull: Physiological adaptation Type: general – SubjectFull: Neural circuitry adaptation Type: general – SubjectFull: Visual cortex Type: general – SubjectFull: Macaques Type: general – SubjectFull: Neurophysiology Type: general – SubjectFull: Neurosciences Type: general Titles: – TitleFull: Adaptation changes the direction tuning of macaque MT neurons. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kohn, Adam – PersonEntity: Name: NameFull: Anthony Movshon, J. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2004 Type: published Y: 2004 Identifiers: – Type: issn-print Value: 10976256 Numbering: – Type: volume Value: 7 – Type: issue Value: 7 Titles: – TitleFull: Nature Neuroscience Type: main |
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