Multisensory Facilitation of Behavior in Monkeys: Effects of Stimulus Intensity.
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| Title: | Multisensory Facilitation of Behavior in Monkeys: Effects of Stimulus Intensity. |
|---|---|
| Authors: | Cappe, Céline, Murray, Micah M., Barone, Pascal, Rouiller, Eric M. |
| Source: | Journal of Cognitive Neuroscience. Dec2010, Vol. 22 Issue 12, p2850-2863. 14p. 1 Diagram, 3 Charts, 4 Graphs. |
| Subjects: | Monkey behavior, Saccadic eye movements, Visual learning, Auditory perception, Perceptual motor learning, Kinematics, Neurophysiologic monitoring |
| Abstract: | Multisensory stimuli can improve performance, facilitating RTs on sensorimotor tasks. This benefit is referred to as the redundant signals effect (RSE) and can exceed predictions on the basis of probability summation, indicative of integrative processes. Although an RSE exceeding probability summation has been repeatedly observed in humans and nonprimate animals, there are scant and inconsistent data fromnonhuman primates performing similar protocols. Rather, existing paradigms have instead focused on saccadic eye movements. Moreover, the extant results in monkeys leave unresolved how stimulus synchronicity and intensity impact performance. Two trained monkeys performed a simple detection task involving arm movements to auditory, visual, or synchronous auditory-visual multisensory pairs. RSEs in excess of predictions on the basis of probability summation were observed and thus forcibly follow from neural response interactions. Parametric variation of auditory stimulus intensity revealed that in both animals, RT facilitation was limited to situations where the auditory stimulus intensity was below or up to 20 dB above perceptual threshold, despite the visual stimulus always being suprathreshold. No RT facilitation or even behavioral costs were obtained with auditory intensities 30-40 dB above threshold. The present study demonstrates the feasibility and the suitability of behaving monkeys for investigating links between psychophysical and neurophysiologic instantiations of multisensory interactions. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Cognitive Neuroscience is the property of MIT Press 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: 53175413 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Multisensory Facilitation of Behavior in Monkeys: Effects of Stimulus Intensity. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Cappe%2C+Céline%22">Cappe, Céline</searchLink><br /><searchLink fieldCode="AR" term="%22Murray%2C+Micah+M%2E%22">Murray, Micah M.</searchLink><br /><searchLink fieldCode="AR" term="%22Barone%2C+Pascal%22">Barone, Pascal</searchLink><br /><searchLink fieldCode="AR" term="%22Rouiller%2C+Eric+M%2E%22">Rouiller, Eric M.</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Cognitive+Neuroscience%22">Journal of Cognitive Neuroscience</searchLink>. Dec2010, Vol. 22 Issue 12, p2850-2863. 14p. 1 Diagram, 3 Charts, 4 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Monkey+behavior%22">Monkey behavior</searchLink><br /><searchLink fieldCode="DE" term="%22Saccadic+eye+movements%22">Saccadic eye movements</searchLink><br /><searchLink fieldCode="DE" term="%22Visual+learning%22">Visual learning</searchLink><br /><searchLink fieldCode="DE" term="%22Auditory+perception%22">Auditory perception</searchLink><br /><searchLink fieldCode="DE" term="%22Perceptual+motor+learning%22">Perceptual motor learning</searchLink><br /><searchLink fieldCode="DE" term="%22Kinematics%22">Kinematics</searchLink><br /><searchLink fieldCode="DE" term="%22Neurophysiologic+monitoring%22">Neurophysiologic monitoring</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Multisensory stimuli can improve performance, facilitating RTs on sensorimotor tasks. This benefit is referred to as the redundant signals effect (RSE) and can exceed predictions on the basis of probability summation, indicative of integrative processes. Although an RSE exceeding probability summation has been repeatedly observed in humans and nonprimate animals, there are scant and inconsistent data fromnonhuman primates performing similar protocols. Rather, existing paradigms have instead focused on saccadic eye movements. Moreover, the extant results in monkeys leave unresolved how stimulus synchronicity and intensity impact performance. Two trained monkeys performed a simple detection task involving arm movements to auditory, visual, or synchronous auditory-visual multisensory pairs. RSEs in excess of predictions on the basis of probability summation were observed and thus forcibly follow from neural response interactions. Parametric variation of auditory stimulus intensity revealed that in both animals, RT facilitation was limited to situations where the auditory stimulus intensity was below or up to 20 dB above perceptual threshold, despite the visual stimulus always being suprathreshold. No RT facilitation or even behavioral costs were obtained with auditory intensities 30-40 dB above threshold. The present study demonstrates the feasibility and the suitability of behaving monkeys for investigating links between psychophysical and neurophysiologic instantiations of multisensory interactions. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Cognitive Neuroscience is the property of MIT Press 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: 10.1162/jocn.2010.21423 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 2850 Subjects: – SubjectFull: Monkey behavior Type: general – SubjectFull: Saccadic eye movements Type: general – SubjectFull: Visual learning Type: general – SubjectFull: Auditory perception Type: general – SubjectFull: Perceptual motor learning Type: general – SubjectFull: Kinematics Type: general – SubjectFull: Neurophysiologic monitoring Type: general Titles: – TitleFull: Multisensory Facilitation of Behavior in Monkeys: Effects of Stimulus Intensity. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Cappe, Céline – PersonEntity: Name: NameFull: Murray, Micah M. – PersonEntity: Name: NameFull: Barone, Pascal – PersonEntity: Name: NameFull: Rouiller, Eric M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2010 Type: published Y: 2010 Identifiers: – Type: issn-print Value: 0898929X Numbering: – Type: volume Value: 22 – Type: issue Value: 12 Titles: – TitleFull: Journal of Cognitive Neuroscience Type: main |
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