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Activation of the parieto-premotor network is associated with vivid motor imagery--a parametric FMRI study.

Lorey B, Pilgramm S, Bischoff M, Stark R, Vaitl D, Kindermann S, Munzert J, Zentgraf K - PLoS ONE (2011)

Bottom Line: Within the right hemisphere, activation was found within the right cerebellum, the right putamen, and the right PMC.It is concluded that the perceived vividness of MI is parametrically associated with neural activity within sensorimotor areas.The results corroborate the hypothesis that MI is an outcome of neural computations based on movement representations located within motor areas.

View Article: PubMed Central - PubMed

Affiliation: Institute for Sports Science, Justus Liebig University Giessen, Giessen, Germany. Britta.Lorey@sport.uni-giessen.de

ABSTRACT
The present study examined the neural basis of vivid motor imagery with parametrical functional magnetic resonance imaging. 22 participants performed motor imagery (MI) of six different right-hand movements that differed in terms of pointing accuracy needs and object involvement, i.e., either none, two big or two small squares had to be pointed at in alternation either with or without an object grasped with the fingers. After each imagery trial, they rated the perceived vividness of motor imagery on a 7-point scale. Results showed that increased perceived imagery vividness was parametrically associated with increasing neural activation within the left putamen, the left premotor cortex (PMC), the posterior parietal cortex of the left hemisphere, the left primary motor cortex, the left somatosensory cortex, and the left cerebellum. Within the right hemisphere, activation was found within the right cerebellum, the right putamen, and the right PMC. It is concluded that the perceived vividness of MI is parametrically associated with neural activity within sensorimotor areas. The results corroborate the hypothesis that MI is an outcome of neural computations based on movement representations located within motor areas.

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Mean vividness rating score and standard errors depicted for each condition (1: No spatial accuracy, object, 10 repetitions; 2: No spatial accuracy, object, 20 repetitions; 3: No spatial accuracy, no object, 10 repetitions; 4: No spatial accuracy, no object, 20 repetitions; 5: Low spatial accuracy, object, 10 repetitions; 6: Low spatial accuracy, object, 20 repetitions; 7: Low spatial accuracy, no object, 10 repetitions; 8: Low spatial accuracy, no object, 20 repetitions; 9: High spatial accuracy, object, 10 repetitions; 10: High spatial accuracy, object, 20 repetitions; 11: High spatial accuracy, no object, 10 repetitions; 12: High spatial accuracy, no object, 20 repetitions.
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pone-0020368-g001: Mean vividness rating score and standard errors depicted for each condition (1: No spatial accuracy, object, 10 repetitions; 2: No spatial accuracy, object, 20 repetitions; 3: No spatial accuracy, no object, 10 repetitions; 4: No spatial accuracy, no object, 20 repetitions; 5: Low spatial accuracy, object, 10 repetitions; 6: Low spatial accuracy, object, 20 repetitions; 7: Low spatial accuracy, no object, 10 repetitions; 8: Low spatial accuracy, no object, 20 repetitions; 9: High spatial accuracy, object, 10 repetitions; 10: High spatial accuracy, object, 20 repetitions; 11: High spatial accuracy, no object, 10 repetitions; 12: High spatial accuracy, no object, 20 repetitions.

Mentions: A repeated-measures ANOVA revealed no significant difference for vividness of imagery in terms of spatial accuracy, F(2, 42) = .858, p = .431, η2 = .039, object involvement, F(1, 21) = 2.62, p = .120, η2 = .111, or number of repetitions, F(1, 21) = 3.255, p = .086, η2 = .134, and no significant interaction effects(object involvement x spatial accuracy: F(2, 42) = .22, p = .8, η2 = .01; object involvement x number of repetitions: F(1, 21) = .151, p = .701, η2 = .007; spatial accuracy x number of repetitions: F(2, 42) = 2.51, p = .093, η2 = .107; object involvement x spatial accuracy x number of repetitions: F(2, 42) = .152, p = .230, η2 = .068). This indicates that conditions do not differ with respect to the variable of interest, that is, imagery vividness (Fig. 1).


Activation of the parieto-premotor network is associated with vivid motor imagery--a parametric FMRI study.

Lorey B, Pilgramm S, Bischoff M, Stark R, Vaitl D, Kindermann S, Munzert J, Zentgraf K - PLoS ONE (2011)

Mean vividness rating score and standard errors depicted for each condition (1: No spatial accuracy, object, 10 repetitions; 2: No spatial accuracy, object, 20 repetitions; 3: No spatial accuracy, no object, 10 repetitions; 4: No spatial accuracy, no object, 20 repetitions; 5: Low spatial accuracy, object, 10 repetitions; 6: Low spatial accuracy, object, 20 repetitions; 7: Low spatial accuracy, no object, 10 repetitions; 8: Low spatial accuracy, no object, 20 repetitions; 9: High spatial accuracy, object, 10 repetitions; 10: High spatial accuracy, object, 20 repetitions; 11: High spatial accuracy, no object, 10 repetitions; 12: High spatial accuracy, no object, 20 repetitions.
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Related In: Results  -  Collection

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getmorefigures.php?uid=PMC3105023&req=5

pone-0020368-g001: Mean vividness rating score and standard errors depicted for each condition (1: No spatial accuracy, object, 10 repetitions; 2: No spatial accuracy, object, 20 repetitions; 3: No spatial accuracy, no object, 10 repetitions; 4: No spatial accuracy, no object, 20 repetitions; 5: Low spatial accuracy, object, 10 repetitions; 6: Low spatial accuracy, object, 20 repetitions; 7: Low spatial accuracy, no object, 10 repetitions; 8: Low spatial accuracy, no object, 20 repetitions; 9: High spatial accuracy, object, 10 repetitions; 10: High spatial accuracy, object, 20 repetitions; 11: High spatial accuracy, no object, 10 repetitions; 12: High spatial accuracy, no object, 20 repetitions.
Mentions: A repeated-measures ANOVA revealed no significant difference for vividness of imagery in terms of spatial accuracy, F(2, 42) = .858, p = .431, η2 = .039, object involvement, F(1, 21) = 2.62, p = .120, η2 = .111, or number of repetitions, F(1, 21) = 3.255, p = .086, η2 = .134, and no significant interaction effects(object involvement x spatial accuracy: F(2, 42) = .22, p = .8, η2 = .01; object involvement x number of repetitions: F(1, 21) = .151, p = .701, η2 = .007; spatial accuracy x number of repetitions: F(2, 42) = 2.51, p = .093, η2 = .107; object involvement x spatial accuracy x number of repetitions: F(2, 42) = .152, p = .230, η2 = .068). This indicates that conditions do not differ with respect to the variable of interest, that is, imagery vividness (Fig. 1).

Bottom Line: Within the right hemisphere, activation was found within the right cerebellum, the right putamen, and the right PMC.It is concluded that the perceived vividness of MI is parametrically associated with neural activity within sensorimotor areas.The results corroborate the hypothesis that MI is an outcome of neural computations based on movement representations located within motor areas.

View Article: PubMed Central - PubMed

Affiliation: Institute for Sports Science, Justus Liebig University Giessen, Giessen, Germany. Britta.Lorey@sport.uni-giessen.de

ABSTRACT
The present study examined the neural basis of vivid motor imagery with parametrical functional magnetic resonance imaging. 22 participants performed motor imagery (MI) of six different right-hand movements that differed in terms of pointing accuracy needs and object involvement, i.e., either none, two big or two small squares had to be pointed at in alternation either with or without an object grasped with the fingers. After each imagery trial, they rated the perceived vividness of motor imagery on a 7-point scale. Results showed that increased perceived imagery vividness was parametrically associated with increasing neural activation within the left putamen, the left premotor cortex (PMC), the posterior parietal cortex of the left hemisphere, the left primary motor cortex, the left somatosensory cortex, and the left cerebellum. Within the right hemisphere, activation was found within the right cerebellum, the right putamen, and the right PMC. It is concluded that the perceived vividness of MI is parametrically associated with neural activity within sensorimotor areas. The results corroborate the hypothesis that MI is an outcome of neural computations based on movement representations located within motor areas.

Show MeSH
Related in: MedlinePlus