Is the brain's inertia for motor movements different for acceleration and deceleration?

The brain's ability to synchronize movements with external cues is used daily, yet neuroscience is far from a full understanding of the brain mechanisms that facilitate and set behavioral limits on these sequential performances. This functional magnetic resonance imaging (fMRI) study was design...

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Autores principales:	Bhim M Adhikari, Kristen M Quinn, Mukesh Dhamala
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b6372646c1fb42e19a17e7c0a2517009
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spelling	oai:doaj.org-article:b6372646c1fb42e19a17e7c0a25170092021-11-18T08:50:09ZIs the brain's inertia for motor movements different for acceleration and deceleration?1932-620310.1371/journal.pone.0078055https://doaj.org/article/b6372646c1fb42e19a17e7c0a25170092013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24205088/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203The brain's ability to synchronize movements with external cues is used daily, yet neuroscience is far from a full understanding of the brain mechanisms that facilitate and set behavioral limits on these sequential performances. This functional magnetic resonance imaging (fMRI) study was designed to help understand the neural basis of behavioral performance differences on a synchronizing movement task during increasing (acceleration) and decreasing (deceleration) metronome rates. In the MRI scanner, subjects were instructed to tap their right index finger on a response box in synchrony to visual cues presented on a display screen. The tapping rate varied either continuously or in discrete steps ranging from 0.5 Hz to 3 Hz. Subjects were able to synchronize better during continuously accelerating rhythms than in continuously or discretely decelerating rhythms. The fMRI data revealed that the precuneus was activated more during continuous deceleration than during acceleration with the hysteresis effect significant at rhythm rates above 1 Hz. From the behavioral data, two performance measures, tapping rate and synchrony index, were derived to further analyze the relative brain activity during acceleration and deceleration of rhythms. Tapping rate was associated with a greater brain activity during deceleration in the cerebellum, superior temporal gyrus and parahippocampal gyrus. Synchrony index was associated with a greater activity during the continuous acceleration phase than during the continuous deceleration or discrete acceleration phases in a distributed network of regions including the prefrontal cortex and precuneus. These results indicate that the brain's inertia for movement is different for acceleration and deceleration, which may have implications in understanding the origin of our perceptual and behavioral limits.Bhim M AdhikariKristen M QuinnMukesh DhamalaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 10, p e78055 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bhim M Adhikari Kristen M Quinn Mukesh Dhamala Is the brain's inertia for motor movements different for acceleration and deceleration?
description	The brain's ability to synchronize movements with external cues is used daily, yet neuroscience is far from a full understanding of the brain mechanisms that facilitate and set behavioral limits on these sequential performances. This functional magnetic resonance imaging (fMRI) study was designed to help understand the neural basis of behavioral performance differences on a synchronizing movement task during increasing (acceleration) and decreasing (deceleration) metronome rates. In the MRI scanner, subjects were instructed to tap their right index finger on a response box in synchrony to visual cues presented on a display screen. The tapping rate varied either continuously or in discrete steps ranging from 0.5 Hz to 3 Hz. Subjects were able to synchronize better during continuously accelerating rhythms than in continuously or discretely decelerating rhythms. The fMRI data revealed that the precuneus was activated more during continuous deceleration than during acceleration with the hysteresis effect significant at rhythm rates above 1 Hz. From the behavioral data, two performance measures, tapping rate and synchrony index, were derived to further analyze the relative brain activity during acceleration and deceleration of rhythms. Tapping rate was associated with a greater brain activity during deceleration in the cerebellum, superior temporal gyrus and parahippocampal gyrus. Synchrony index was associated with a greater activity during the continuous acceleration phase than during the continuous deceleration or discrete acceleration phases in a distributed network of regions including the prefrontal cortex and precuneus. These results indicate that the brain's inertia for movement is different for acceleration and deceleration, which may have implications in understanding the origin of our perceptual and behavioral limits.
format	article
author	Bhim M Adhikari Kristen M Quinn Mukesh Dhamala
author_facet	Bhim M Adhikari Kristen M Quinn Mukesh Dhamala
author_sort	Bhim M Adhikari
title	Is the brain's inertia for motor movements different for acceleration and deceleration?
title_short	Is the brain's inertia for motor movements different for acceleration and deceleration?
title_full	Is the brain's inertia for motor movements different for acceleration and deceleration?
title_fullStr	Is the brain's inertia for motor movements different for acceleration and deceleration?
title_full_unstemmed	Is the brain's inertia for motor movements different for acceleration and deceleration?
title_sort	is the brain's inertia for motor movements different for acceleration and deceleration?
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/b6372646c1fb42e19a17e7c0a2517009
work_keys_str_mv	AT bhimmadhikari isthebrainsinertiaformotormovementsdifferentforaccelerationanddeceleration AT kristenmquinn isthebrainsinertiaformotormovementsdifferentforaccelerationanddeceleration AT mukeshdhamala isthebrainsinertiaformotormovementsdifferentforaccelerationanddeceleration
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Is the brain's inertia for motor movements different for acceleration and deceleration?

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