An fMRI study of parietal cortex involvement in the visual guidance of locomotion. Billington, J., Field, D., T., Wilkie, R., M., & Wann, J., P. Journal of experimental psychology. Human perception and performance, 36(6):1495-507, American Psychological Association, 12, 2010.
An fMRI study of parietal cortex involvement in the visual guidance of locomotion. [link]Website  abstract   bibtex   
Locomoting through the environment typically involves anticipating impending changes in heading trajectory in addition to maintaining the current direction of travel. We explored the neural systems involved in the "far road" and "near road" mechanisms proposed by Land and Horwood (1995) using simulated forward or backward travel where participants were required to gauge their current direction of travel (rather than directly control it). During forward egomotion, the distant road edges provided future path information, which participants used to improve their heading judgments. During backward egomotion, the road edges did not enhance performance because they no longer provided prospective information. This behavioral dissociation was reflected at the neural level, where only simulated forward travel increased activation in a region of the superior parietal lobe and the medial intraparietal sulcus. Providing only near road information during a forward heading judgment task resulted in activation in the motion complex. We propose a complementary role for the posterior parietal cortex and motion complex in detecting future path information and maintaining current lane positioning, respectively.
@article{
 title = {An fMRI study of parietal cortex involvement in the visual guidance of locomotion.},
 type = {article},
 year = {2010},
 identifiers = {[object Object]},
 keywords = {Adult,Brain Mapping,Cues,Distance Perception,Distance Perception: physiology,Dominance, Cerebral,Dominance, Cerebral: physiology,Female,Fixation, Ocular,Fixation, Ocular: physiology,Humans,Image Processing, Computer-Assisted,Kinesthesis,Kinesthesis: physiology,Locomotion,Locomotion: physiology,Magnetic Resonance Imaging,Male,Nerve Net,Nerve Net: physiology,Optic Flow,Optic Flow: physiology,Orientation,Orientation: physiology,Oxygen Consumption,Oxygen Consumption: physiology,Parietal Lobe,Parietal Lobe: physiology,Psychomotor Performance,Psychomotor Performance: physiology,Saccades,Saccades: physiology,Visual Perception,Visual Perception: physiology,Young Adult},
 pages = {1495-507},
 volume = {36},
 websites = {http://psycnet.apa.org/journals/xhp/36/6/1495.html},
 month = {12},
 publisher = {American Psychological Association},
 day = {1},
 id = {d6e8443d-ed66-3783-81b3-3c281afdea75},
 created = {2016-01-20T16:02:53.000Z},
 accessed = {2015-12-10},
 file_attached = {false},
 profile_id = {d5b53108-91c5-30b8-8e6c-dd027f636bcd},
 last_modified = {2016-01-21T12:29:57.000Z},
 read = {false},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 language = {English},
 abstract = {Locomoting through the environment typically involves anticipating impending changes in heading trajectory in addition to maintaining the current direction of travel. We explored the neural systems involved in the "far road" and "near road" mechanisms proposed by Land and Horwood (1995) using simulated forward or backward travel where participants were required to gauge their current direction of travel (rather than directly control it). During forward egomotion, the distant road edges provided future path information, which participants used to improve their heading judgments. During backward egomotion, the road edges did not enhance performance because they no longer provided prospective information. This behavioral dissociation was reflected at the neural level, where only simulated forward travel increased activation in a region of the superior parietal lobe and the medial intraparietal sulcus. Providing only near road information during a forward heading judgment task resulted in activation in the motion complex. We propose a complementary role for the posterior parietal cortex and motion complex in detecting future path information and maintaining current lane positioning, respectively.},
 bibtype = {article},
 author = {Billington, Jac and Field, David T and Wilkie, Richard M and Wann, John P},
 journal = {Journal of experimental psychology. Human perception and performance},
 number = {6}
}

Downloads: 0