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6) Functional magnetic resonance imaging was used in humans to compare visual FB versus NFB conditions for a bimanual tracking task, and their differential evolution across learning.
* Reduced Neural Differentiation Between Feedback Conditions After Bimanual Coordination Training with and without Augmented Visual Feedback.
- It has been established that bimanual coordination with augmented feedback (FB) versus no augmented feedback (NFB) is associated with activity in different brain regions. It is unclear however, whether this distinction remains after practice comprising both these conditions. Functional magnetic resonance imaging was used in humans to compare visual FB versus NFB conditions for a bimanual tracking task, and their differential evolution across learning. Scanning occurred before (Pre) and after 2 weeks (Post) of mixed FB and NFB training using an event-related design, allowing differentiation between the planning and execution phase of the task. Activations at the whole-brain level initially differed for FB versus NFB movements but this differentiation diminished with training for the movement execution phase. Specifically, in right dorsal premotor cortex and right dorsolateral prefrontal cortex activation increased for NFB and decreased for FB trials to converge toward the end of practice. This suggests that learning led to a decreased need to adjust the ongoing movement on the basis of FB, whereas online monitoring became more pronounced in NFB trials as discrepancies between the required and the produced motor output were detected more accurately after training, due to a generic internal reference of correctness supporting movement control under varying conditions.
=>機能の, 関数の, 機能する, 機能上の, 実用的な, 機能的な
Overview of adj functional
The adj functional has 6 senses (first 2 from tagged texts)
1. (3) functional -- (designed for or capable of a particular function or use; "a style of writing
in which every word is functional"; "functional architecture")
2. (1) functional -- (involving or affecting function rather than physiology; "functional deafness")
3. functional -- (relating to or based on function especially as opposed to structure; "the problem
now is not a constitutional one; it is a functional one"; "delegates elected on a functional rather
than a geographical basis")
4. functional, usable, useable, operable, operational -- (fit or ready for use or service; "the
toaster was still functional even after being dropped"; "the lawnmower is a bit rusty but still
usable"; "an operational aircraft"; "the dishwasher is now in working order")
5. functional -- (designed for or adapted to a function or use; "functional education selects
knowledge that is concrete and usable rather than abstract and theoretical"; "functional
architecture")
6. running, operative, functional, working -- ((of e.g. a machine) performing or capable of
performing; "in running (or working) order"; "a functional set of brakes")
--- WordNet end ---