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- aggregation classification "A1".
- aggregation creator B259231.
- aggregation creator B259232.
- aggregation creator person.
- aggregation date "2009".
- aggregation hasFormat 3089558.bibtex.
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- aggregation isPartOf urn:issn:1047-3211.
- aggregation language "eng".
- aggregation subject "Social Sciences".
- aggregation title "Double dissociation between motor and visual imagery in the posterior parietal cortex".
- aggregation abstract "Because motor imagery (MI) and visual imagery (VI) are influenced differently by factors such as biomechanical constraints or stimulus size, it is conceivable that they rely on separate processes, possibly involving distinct cortical networks, a view corroborated by neuroimaging and neuropsychological studies. In the posterior parietal cortex, it has been suggested that the superior parietal lobule (SPL) underlies VI, whereas MI relies on the supramarginalis gyrus (SMG). However, because several brain imaging studies have also shown an overlap of activations in SPL and SMG during VI or MI, the question arises as to which extent these 2 subregions really contribute to distinct imagery processes. To address this issue, we used repetitive transcranial magnetic stimulation to induce virtual lesions of either SMG or SPL in subjects performing a MI (hand drawing rotation) or a VI (letter rotation) task. Whatever hemisphere was stimulated, SMG lesions selectively altered MI, whereas SPL lesions only affected VI, demonstrating a double dissociation between MI and VI. Because these deficits were not influenced by the angular distance of the stimuli, we suggest that SMG and SPL are involved in the reenactment of the motor and visual representations, respectively, and not in mental rotation processes per se.".
- aggregation authorList BK536909.
- aggregation endPage "2307".
- aggregation issue "10".
- aggregation startPage "2298".
- aggregation volume "19".
- aggregation isDescribedBy 3089558.
- aggregation similarTo bhn248.
- aggregation similarTo LU-3089558.