Functional contribution of medial premotor cortex to visuo-spatial transformation in humans
Functional contribution of medial premotor cortex to visuo-spatial transformation in humans
This paper examines the functional contribution of medial premotor cortex, the supplementary motor area (SMA), to visuo-spatial transformation. Previous studies have found evidence of activation in SMA using ‘mental rotation’ tasks in which subjects make mirror-image judgements about simultaneously presented depth rotated novel forms. This manipulation induces potential confounds in the cognitive demands of the task in addition to spatial normalization processes. We clarify the role of SMA in visuo-spatial normalization using functional magnetic resonance imaging with a sequential mirror-image judgement task involving 2D image-plane rotated forms. The results show preferential activation of pre-SMA, as well as the ventrolateral prefrontal and parietal cortex during the visuo-spatial transformation of mirror-image stimuli.
209-212
Johnston, Stephen
c905e898-832e-493f-9287-a1ef490f7bec
Leek, E. Charles
6f63c405-e28f-4f8c-8ead-3b0a79c7dc88
Atherton, Christine
75349bc2-2a65-403b-8fa5-6eff4c3ecd48
Thacker, Neil
3cb0a6e9-f3cf-41ab-8c5d-0631644ab078
Jackson, Alan
fd8b2a4d-9dd8-4872-8eec-167b217912fe
30 January 2004
Johnston, Stephen
c905e898-832e-493f-9287-a1ef490f7bec
Leek, E. Charles
6f63c405-e28f-4f8c-8ead-3b0a79c7dc88
Atherton, Christine
75349bc2-2a65-403b-8fa5-6eff4c3ecd48
Thacker, Neil
3cb0a6e9-f3cf-41ab-8c5d-0631644ab078
Jackson, Alan
fd8b2a4d-9dd8-4872-8eec-167b217912fe
Johnston, Stephen, Leek, E. Charles, Atherton, Christine, Thacker, Neil and Jackson, Alan
(2004)
Functional contribution of medial premotor cortex to visuo-spatial transformation in humans.
Neuroscience Letters, 355, .
(doi:10.1016/j.neulet.2003.11.011).
Abstract
This paper examines the functional contribution of medial premotor cortex, the supplementary motor area (SMA), to visuo-spatial transformation. Previous studies have found evidence of activation in SMA using ‘mental rotation’ tasks in which subjects make mirror-image judgements about simultaneously presented depth rotated novel forms. This manipulation induces potential confounds in the cognitive demands of the task in addition to spatial normalization processes. We clarify the role of SMA in visuo-spatial normalization using functional magnetic resonance imaging with a sequential mirror-image judgement task involving 2D image-plane rotated forms. The results show preferential activation of pre-SMA, as well as the ventrolateral prefrontal and parietal cortex during the visuo-spatial transformation of mirror-image stimuli.
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Accepted/In Press date: 5 November 2003
e-pub ahead of print date: 10 December 2003
Published date: 30 January 2004
Identifiers
Local EPrints ID: 493556
URI: http://eprints.soton.ac.uk/id/eprint/493556
ISSN: 0304-3940
PURE UUID: c027ea66-5d83-495f-a32d-5977a8753303
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Date deposited: 06 Sep 2024 16:32
Last modified: 07 Sep 2024 02:11
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Contributors
Author:
Stephen Johnston
Author:
E. Charles Leek
Author:
Christine Atherton
Author:
Neil Thacker
Author:
Alan Jackson
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