1. Human posterior parietal and dorsal premotor cortex encode the visual properties of an upcoming action
- Author
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Pilacinski, Artur, Wallscheid, Melanie, and Lindner, Axel
- Subjects
Male ,genetic structures ,Eye Movements ,Vision ,Physiology ,Visual System ,Sensory Physiology ,lcsh:Medicine ,Social Sciences ,Diagnostic Radiology ,Mathematical and Statistical Techniques ,Functional Magnetic Resonance Imaging ,Parietal Lobe ,Medicine and Health Sciences ,Psychology ,lcsh:Science ,Musculoskeletal System ,Cerebral Cortex ,Brain Mapping ,Radiology and Imaging ,Statistics ,Motor Cortex ,Brain ,Magnetic Resonance Imaging ,Sensory Systems ,Physical Sciences ,Visual Perception ,Sensory Perception ,Female ,Anatomy ,psychological phenomena and processes ,Research Article ,Imaging Techniques ,Cognitive Neuroscience ,Movement ,Prefrontal Cortex ,Neuroimaging ,Research and Analysis Methods ,behavioral disciplines and activities ,Diagnostic Medicine ,Reaction Time ,Humans ,Statistical Methods ,Vision, Ocular ,Analysis of Variance ,lcsh:R ,Biology and Life Sciences ,Cognitive Science ,lcsh:Q ,Mathematics ,Photic Stimulation ,Psychomotor Performance ,Neuroscience - Abstract
Behavioral studies show that motor actions are planned by adapting motor programs to produce desired visual consequences. Does this mean that the brain plans these visual consequences independent of the motor actions required to obtain them? Here we addressed this question by investigating planning-related fMRI activity in human posterior parietal (PPC) and dorsal premotor (PMd) cortex. By manipulating visual movement of a virtual end-effector controlled via button presses we could dissociate motor actions from their sensory outcome. A clear representation of the visual consequences was visible in both PPC and PMd activity during early planning stages. Our findings suggest that in both PPC and PMd action plans are initially represented on the basis of the desired sensory outcomes while later activity shifts towards representing motor programs.
- Published
- 2018