Observation of own exploration movements impairs haptic spatial perception
Identifieur interne : 000108 ( PascalFrancis/Corpus ); précédent : 000107; suivant : 000109Observation of own exploration movements impairs haptic spatial perception
Auteurs : Stephanie Mueller ; Stefanie Habermann ; Janett Dudda ; Martin GrunwaldSource :
- Experimental brain research [ 0014-4819 ] ; 2013.
Descripteurs français
- Pascal (Inist)
English descriptors
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Abstract
The present study was designed to assess whether the visibility of ones' own exploratory movements impairs or enhances perceptual speed and precision of haptic stimuli with varying complexity. Previous studies have shown that noninformative vision of steady surroundings improves haptic spatial perception. However, due to the serial nature of haptic processing and limited capacity of working memory resources, we hypothesized that noninformative vision of limb movements may impair haptic perception. The study sample consisted of ninety-eight healthy adults who were randomized into two groups, matched for sex and age. Participants were required to explore two-dimensional haptic stimuli with varying complexity and to recognize them visually. The difference between the two experimental groups was a screen that would prevent the participants from viewing their hands during exploration in the nonobservation condition (NonOb). The other half of participants were able to see their hands in the manual movement observation condition (MovOb) thanks to the special design of the stimuli. As hypothesized, the persons in the MovOb condition made significantly more errors. The difference in error frequency between participants of the MovOb and NonOb condition was greater for complex stimuli than for simple ones. These results suggest that incoming visual information about own manual exploration movements increases competitive pressure for limited working memory resources, and therefore, more recognition errors are made. Covering the hands during exploration may constitute a helpful simplification of the task's demands by supporting the maintenance of information in working memory. Additionally, the relation of haptic complexity and stimulus characteristics was analyzed.
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| NO : | PASCAL 14-0006211 INIST |
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| ET : | Observation of own exploration movements impairs haptic spatial perception |
| AU : | MUELLER (Stephanie); HABERMANN (Stefanie); DUDDA (Janett); GRUNWALD (Martin) |
| AF : | Haptic Research Laboratory, Paul Flechsig Institution for Brain Research, University of Leipzig, Johannisallee 34/04103 Leipzig/Allemagne (1 aut., 2 aut., 3 aut., 4 aut.) |
| DT : | Publication en série; Niveau analytique |
| SO : | Experimental brain research; ISSN 0014-4819; Coden EXBRAP; Allemagne; Da. 2013; Vol. 231; No. 4; Pp. 415-423; Bibl. 1/2 p. |
| LA : | Anglais |
| EA : | The present study was designed to assess whether the visibility of ones' own exploratory movements impairs or enhances perceptual speed and precision of haptic stimuli with varying complexity. Previous studies have shown that noninformative vision of steady surroundings improves haptic spatial perception. However, due to the serial nature of haptic processing and limited capacity of working memory resources, we hypothesized that noninformative vision of limb movements may impair haptic perception. The study sample consisted of ninety-eight healthy adults who were randomized into two groups, matched for sex and age. Participants were required to explore two-dimensional haptic stimuli with varying complexity and to recognize them visually. The difference between the two experimental groups was a screen that would prevent the participants from viewing their hands during exploration in the nonobservation condition (NonOb). The other half of participants were able to see their hands in the manual movement observation condition (MovOb) thanks to the special design of the stimuli. As hypothesized, the persons in the MovOb condition made significantly more errors. The difference in error frequency between participants of the MovOb and NonOb condition was greater for complex stimuli than for simple ones. These results suggest that incoming visual information about own manual exploration movements increases competitive pressure for limited working memory resources, and therefore, more recognition errors are made. Covering the hands during exploration may constitute a helpful simplification of the task's demands by supporting the maintenance of information in working memory. Additionally, the relation of haptic complexity and stimulus characteristics was analyzed. |
| CC : | 002A25I |
| FD : | Perception; Vision; Mémoire de travail; Stimulus |
| ED : | Perception; Vision; Working memory; Stimulus |
| SD : | Percepción; Visión; Memoria trabajo; Estímulo |
| LO : | INIST-12535.354000507436820040 |
| ID : | 14-0006211 |
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aut.</sZ><sZ>4 aut.</sZ></inist:fA14></affiliation></author></analytic><series><title level="j" type="main">Experimental brain research</title><title level="j" type="abbreviated">Exp. brain res.</title><idno type="ISSN">0014-4819</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Experimental brain research</title><title level="j" type="abbreviated">Exp. brain res.</title><idno type="ISSN">0014-4819</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Perception</term><term>Stimulus</term><term>Vision</term><term>Working memory</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Perception</term><term>Vision</term><term>Mémoire de travail</term><term>Stimulus</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The present study was designed to assess whether the visibility of ones' own exploratory movements impairs or enhances perceptual speed and precision of haptic stimuli with varying complexity. Previous studies have shown that noninformative vision of steady surroundings improves haptic spatial perception. However, due to the serial nature of haptic processing and limited capacity of working memory resources, we hypothesized that noninformative vision of limb movements may impair haptic perception. The study sample consisted of ninety-eight healthy adults who were randomized into two groups, matched for sex and age. Participants were required to explore two-dimensional haptic stimuli with varying complexity and to recognize them visually. The difference between the two experimental groups was a screen that would prevent the participants from viewing their hands during exploration in the nonobservation condition (NonOb). The other half of participants were able to see their hands in the manual movement observation condition (MovOb) thanks to the special design of the stimuli. As hypothesized, the persons in the MovOb condition made significantly more errors. The difference in error frequency between participants of the MovOb and NonOb condition was greater for complex stimuli than for simple ones. These results suggest that incoming visual information about own manual exploration movements increases competitive pressure for limited working memory resources, and therefore, more recognition errors are made. Covering the hands during exploration may constitute a helpful simplification of the task's demands by supporting the maintenance of information in working memory. 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Participants were required to explore two-dimensional haptic stimuli with varying complexity and to recognize them visually. The difference between the two experimental groups was a screen that would prevent the participants from viewing their hands during exploration in the nonobservation condition (NonOb). The other half of participants were able to see their hands in the manual movement observation condition (MovOb) thanks to the special design of the stimuli. As hypothesized, the persons in the MovOb condition made significantly more errors. The difference in error frequency between participants of the MovOb and NonOb condition was greater for complex stimuli than for simple ones. These results suggest that incoming visual information about own manual exploration movements increases competitive pressure for limited working memory resources, and therefore, more recognition errors are made. 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Previous studies have shown that noninformative vision of steady surroundings improves haptic spatial perception. However, due to the serial nature of haptic processing and limited capacity of working memory resources, we hypothesized that noninformative vision of limb movements may impair haptic perception. The study sample consisted of ninety-eight healthy adults who were randomized into two groups, matched for sex and age. Participants were required to explore two-dimensional haptic stimuli with varying complexity and to recognize them visually. The difference between the two experimental groups was a screen that would prevent the participants from viewing their hands during exploration in the nonobservation condition (NonOb). The other half of participants were able to see their hands in the manual movement observation condition (MovOb) thanks to the special design of the stimuli. As hypothesized, the persons in the MovOb condition made significantly more errors. The difference in error frequency between participants of the MovOb and NonOb condition was greater for complex stimuli than for simple ones. These results suggest that incoming visual information about own manual exploration movements increases competitive pressure for limited working memory resources, and therefore, more recognition errors are made. Covering the hands during exploration may constitute a helpful simplification of the task's demands by supporting the maintenance of information in working memory. Additionally, the relation of haptic complexity and stimulus characteristics was analyzed.</EA><CC>002A25I</CC><FD>Perception; Vision; Mémoire de travail; Stimulus</FD><ED>Perception; Vision; Working memory; Stimulus</ED><SD>Percepción; Visión; Memoria trabajo; Estímulo</SD><LO>INIST-12535.354000507436820040</LO><ID>14-0006211</ID></server></inist></record>Pour manipuler ce document sous Unix (Dilib)
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