A delivery device for presentation of tactile stimuli during functional magnetic resonance imaging.
Identifieur interne : 001762 ( PubMed/Corpus ); précédent : 001761; suivant : 001763A delivery device for presentation of tactile stimuli during functional magnetic resonance imaging.
Auteurs : Robert W. Dykes ; Aline Miqueé ; Christian Xerri ; Yoh'I Zennou-Azogui ; Constant Rainville ; André Dumoulin ; Daniel MarineauSource :
- Journal of neuroscience methods [ 0165-0270 ] ; 2007.
English descriptors
- KwdEn :
- Electronics, Equipment Design, Fingers, Form Perception, Humans, Magnetic Resonance Imaging (instrumentation), Magnetic Resonance Imaging (methods), Physical Stimulation (instrumentation), Physical Stimulation (methods), Psychophysics (instrumentation), Psychophysics (methods), Somatosensory Cortex (physiology), Touch.
- MESH :
- instrumentation : Magnetic Resonance Imaging, Physical Stimulation, Psychophysics.
- methods : Magnetic Resonance Imaging, Physical Stimulation, Psychophysics.
- physiology : Somatosensory Cortex.
- Electronics, Equipment Design, Fingers, Form Perception, Humans, Touch.
Abstract
We describe a novel stimulus delivery system designed to present tactile stimuli to a subject in the tunnel of a magnetic resonance imaging (MRI) system. Using energy from an air-driven piston to turn a wheel, the device advances a conveyor belt with a pre-determined sequence of stimuli that differ in their spatial features into the tunnel of the MRI. The positioning of one or several stimulus objects in a window near the subject's hand is controlled by a photoelectric device that detects periodic openings in the conveyor belt. Using this electric signal to position each presentation avoids cumulative positioning errors and provides a signal related to the progression of the experiment. We used a series of shapes that differed in their spatial features but the device could carry stimuli with a diversity of shapes and textures. This flexibility allows the experimenter to design a wide variety of psychophysical experiments in the haptic world and possibly to compare and contrast these stimuli with the cognitive treatment of similar stimuli delivered to the other senses. Appropriate experimental design allows separation of motor, sensory and memory storage phases of mental processes.
DOI: 10.1016/j.jneumeth.2006.07.020
PubMed: 16945420
Links to Exploration step
pubmed:16945420Le document en format XML
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<author><name sortKey="Dykes, Robert W" sort="Dykes, Robert W" uniqKey="Dykes R" first="Robert W" last="Dykes">Robert W. Dykes</name>
<affiliation><nlm:affiliation>School of Physical and Occupational Therapy, McGill University, Montreal, Québec, Canada. robert.dykes@McGill.Ca</nlm:affiliation>
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<author><name sortKey="Miquee, Aline" sort="Miquee, Aline" uniqKey="Miquee A" first="Aline" last="Miqueé">Aline Miqueé</name>
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<author><name sortKey="Xerri, Christian" sort="Xerri, Christian" uniqKey="Xerri C" first="Christian" last="Xerri">Christian Xerri</name>
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<author><name sortKey="Zennou Azogui, Yoh I" sort="Zennou Azogui, Yoh I" uniqKey="Zennou Azogui Y" first="Yoh'I" last="Zennou-Azogui">Yoh'I Zennou-Azogui</name>
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<author><name sortKey="Rainville, Constant" sort="Rainville, Constant" uniqKey="Rainville C" first="Constant" last="Rainville">Constant Rainville</name>
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<author><name sortKey="Dumoulin, Andre" sort="Dumoulin, Andre" uniqKey="Dumoulin A" first="André" last="Dumoulin">André Dumoulin</name>
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<author><name sortKey="Marineau, Daniel" sort="Marineau, Daniel" uniqKey="Marineau D" first="Daniel" last="Marineau">Daniel Marineau</name>
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<term>Magnetic Resonance Imaging (instrumentation)</term>
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<front><div type="abstract" xml:lang="en">We describe a novel stimulus delivery system designed to present tactile stimuli to a subject in the tunnel of a magnetic resonance imaging (MRI) system. Using energy from an air-driven piston to turn a wheel, the device advances a conveyor belt with a pre-determined sequence of stimuli that differ in their spatial features into the tunnel of the MRI. The positioning of one or several stimulus objects in a window near the subject's hand is controlled by a photoelectric device that detects periodic openings in the conveyor belt. Using this electric signal to position each presentation avoids cumulative positioning errors and provides a signal related to the progression of the experiment. We used a series of shapes that differed in their spatial features but the device could carry stimuli with a diversity of shapes and textures. This flexibility allows the experimenter to design a wide variety of psychophysical experiments in the haptic world and possibly to compare and contrast these stimuli with the cognitive treatment of similar stimuli delivered to the other senses. Appropriate experimental design allows separation of motor, sensory and memory storage phases of mental processes.</div>
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<ArticleTitle>A delivery device for presentation of tactile stimuli during functional magnetic resonance imaging.</ArticleTitle>
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<Abstract><AbstractText>We describe a novel stimulus delivery system designed to present tactile stimuli to a subject in the tunnel of a magnetic resonance imaging (MRI) system. Using energy from an air-driven piston to turn a wheel, the device advances a conveyor belt with a pre-determined sequence of stimuli that differ in their spatial features into the tunnel of the MRI. The positioning of one or several stimulus objects in a window near the subject's hand is controlled by a photoelectric device that detects periodic openings in the conveyor belt. Using this electric signal to position each presentation avoids cumulative positioning errors and provides a signal related to the progression of the experiment. We used a series of shapes that differed in their spatial features but the device could carry stimuli with a diversity of shapes and textures. This flexibility allows the experimenter to design a wide variety of psychophysical experiments in the haptic world and possibly to compare and contrast these stimuli with the cognitive treatment of similar stimuli delivered to the other senses. Appropriate experimental design allows separation of motor, sensory and memory storage phases of mental processes.</AbstractText>
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