Overt and Covert Object Features Mediate Timing of Patterned Brain Activity during Motor Planning
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Date
2020-10-30
Authors
Marneweck, Michelle
Grafton, Scott T.
Journal Title
Journal ISSN
Volume Title
Publisher
Oxford University Press
Abstract
Humans are seamless in their ability to efficiently and reliably generate fingertip forces to gracefully interact with objects. Such interactions rarely end in awkward outcomes like spilling, crushing, or tilting given advanced motor planning. Here we combine multiband imaging with deconvolution- and Bayesian pattern component modeling of functional magnetic resonance imaging data and in-scanner kinematics, revealing compelling evidence that the human brain differentially represents preparatory information for skillful object interactions depending on the saliency of visual cues. Earlier patterned activity was particularly evident in ventral visual processing stream-, but also selectively in dorsal visual processing stream and cerebellum in conditions of heightened uncertainty when an object’s superficial shape was incompatible rather than compatible with a key underlying object feature.
Description
11 pages
Keywords
motor planning, neural representations, object manipulation, representational similarity analyses, ventral-dorsal
Citation
Michelle Marneweck, Scott T Grafton, Overt and Covert Object Features Mediate Timing of Patterned Brain Activity during Motor Planning, Cerebral Cortex Communications, Volume 1, Issue 1, 2020, tgaa080, https://doi.org/10.1093/texcom/tgaa080