Obstacle avoidance and smooth trajectory control: Neural areas highlighted during improved locomotor performance.
Visual control of locomotion typically involves both detection of current egomotion as well as anticipation of impending changes in trajectory. To determine if there are distinct neural systems involved in these aspects of steering control we used a slalom paradigm, which required participants to st...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2013-02-01
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| Series: | Frontiers in Behavioral Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnbeh.2013.00009/full |
| _version_ | 1818684196952997888 |
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| author | Jaclyn eBillington Richard McGilchrist Wilkie John Philip Wann |
| author_facet | Jaclyn eBillington Richard McGilchrist Wilkie John Philip Wann |
| author_sort | Jaclyn eBillington |
| collection | DOAJ |
| description | Visual control of locomotion typically involves both detection of current egomotion as well as anticipation of impending changes in trajectory. To determine if there are distinct neural systems involved in these aspects of steering control we used a slalom paradigm, which required participants to steer around objects in a computer simulated environment using a joystick. In some trials the whole slalom layout was visible (steering ‘preview’ trials) so planning of the trajectory around future waypoints was possible, whereas in other trials the slalom course was only revealed one object at a time (steering ‘near’ trials) so that future planning was restricted. In order to control for any differences in the motor requirements and visual properties between ‘preview’ and ‘near’ trials, we also interleaved control trials which replayed a participants’ previous steering trials, with the task being to mimic the observed steering. Behavioral and fMRI results confirmed previous findings of superior parietal lobe (SPL) recruitment during steering trials, with a more extensive parietal and sensorimotor network during steering ‘preview’ compared to steer ‘near’ trials. Correlational analysis of fMRI data with respect to individual behavioral performance revealed that there was increased activation in the SPL in participants who exhibited smoother steering performance. These findings indicate that there is a role for the SPL in spatial encoding and updating of future targets or obstacles during forward locomotion, which also provides a potential neural underpinning to explain improved steering performance on an individual basis. |
| first_indexed | 2024-12-17T10:46:48Z |
| format | Article |
| id | doaj.art-15aee2a6b31444c18404c00a2062d552 |
| institution | Directory Open Access Journal |
| issn | 1662-5153 |
| language | English |
| last_indexed | 2024-12-17T10:46:48Z |
| publishDate | 2013-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Behavioral Neuroscience |
| spelling | doaj.art-15aee2a6b31444c18404c00a2062d5522022-12-21T21:52:05ZengFrontiers Media S.A.Frontiers in Behavioral Neuroscience1662-51532013-02-01710.3389/fnbeh.2013.0000934320Obstacle avoidance and smooth trajectory control: Neural areas highlighted during improved locomotor performance.Jaclyn eBillington0Richard McGilchrist Wilkie1John Philip Wann2University of LeedsUniversity of LeedsRoyal Holloway University of LondonVisual control of locomotion typically involves both detection of current egomotion as well as anticipation of impending changes in trajectory. To determine if there are distinct neural systems involved in these aspects of steering control we used a slalom paradigm, which required participants to steer around objects in a computer simulated environment using a joystick. In some trials the whole slalom layout was visible (steering ‘preview’ trials) so planning of the trajectory around future waypoints was possible, whereas in other trials the slalom course was only revealed one object at a time (steering ‘near’ trials) so that future planning was restricted. In order to control for any differences in the motor requirements and visual properties between ‘preview’ and ‘near’ trials, we also interleaved control trials which replayed a participants’ previous steering trials, with the task being to mimic the observed steering. Behavioral and fMRI results confirmed previous findings of superior parietal lobe (SPL) recruitment during steering trials, with a more extensive parietal and sensorimotor network during steering ‘preview’ compared to steer ‘near’ trials. Correlational analysis of fMRI data with respect to individual behavioral performance revealed that there was increased activation in the SPL in participants who exhibited smoother steering performance. These findings indicate that there is a role for the SPL in spatial encoding and updating of future targets or obstacles during forward locomotion, which also provides a potential neural underpinning to explain improved steering performance on an individual basis.http://journal.frontiersin.org/Journal/10.3389/fnbeh.2013.00009/fullLocomotionfMRIHeadingsteeringimproved performance |
| spellingShingle | Jaclyn eBillington Richard McGilchrist Wilkie John Philip Wann Obstacle avoidance and smooth trajectory control: Neural areas highlighted during improved locomotor performance. Frontiers in Behavioral Neuroscience Locomotion fMRI Heading steering improved performance |
| title | Obstacle avoidance and smooth trajectory control: Neural areas highlighted during improved locomotor performance. |
| title_full | Obstacle avoidance and smooth trajectory control: Neural areas highlighted during improved locomotor performance. |
| title_fullStr | Obstacle avoidance and smooth trajectory control: Neural areas highlighted during improved locomotor performance. |
| title_full_unstemmed | Obstacle avoidance and smooth trajectory control: Neural areas highlighted during improved locomotor performance. |
| title_short | Obstacle avoidance and smooth trajectory control: Neural areas highlighted during improved locomotor performance. |
| title_sort | obstacle avoidance and smooth trajectory control neural areas highlighted during improved locomotor performance |
| topic | Locomotion fMRI Heading steering improved performance |
| url | http://journal.frontiersin.org/Journal/10.3389/fnbeh.2013.00009/full |
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