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Activation characteristics of the primary motor (M1) and supplementary motor (SMA) areas during robust unilateral finger tapping task

This study investigated the functional specialisation characteristics of brain in multiple right-hand dominant subjects pertaining to the activation of the cerebral motor cortices evoked by unilateral finger tapping, especially in primary motor (M1) and supplementary motor (SMA) areas. This multiple...

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Main Authors: Ahmad Nazlim Yusoff,, Mazlyfarina Mohamad,, Khairiah Abdul Hamid,, Aini Ismafairus Abd Hamid,, Hanani Abdul Manan,, Mohd Harith Hashim,
Format: Article
Language:English
Published: Penerbit UKM 2010
Online Access:http://journalarticle.ukm.my/3672/1/Activation_Characteristics_of_the_Primary_Motor.pdf
http://journalarticle.ukm.my/3672/
http://www.fsk.ukm.my/jurnal/jilid%208%282%29%202010/Chap%208.pdf
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spelling my-ukm.journal.36722016-12-14T06:35:05Z http://journalarticle.ukm.my/3672/ Activation characteristics of the primary motor (M1) and supplementary motor (SMA) areas during robust unilateral finger tapping task Ahmad Nazlim Yusoff, Mazlyfarina Mohamad, Khairiah Abdul Hamid, Aini Ismafairus Abd Hamid, Hanani Abdul Manan, Mohd Harith Hashim, This study investigated the functional specialisation characteristics of brain in multiple right-hand dominant subjects pertaining to the activation of the cerebral motor cortices evoked by unilateral finger tapping, especially in primary motor (M1) and supplementary motor (SMA) areas. This multiple-subject study used unilateral (UNIright and UNIleft) selfpaced tapping of hand fingers to activate the M1 and SMA. Brain activation characteristics were analysed using statistical parametric mapping (SPM). Activation for UNIright and UNIleft showed the involvement of contralateral and ipsilateral M1 and SMA. A larger activation area but with a lower percentage of signal change (PSC) were observed in the left M1 due to the control on UNIright (4164 voxels at α = 0.001, PSC = 1.650) as compared to the right M1 due to the control on UNIleft (2012 voxels at α = 0.001, PSC = 2.377). This is due to the influence of the tapping rate effects which is greater than what could be produced by the average effects of the dominant and sub-dominant hands. The significantly higher PSC value observed in the right M1 (p < 0.05) is due to a higher control demand used by the brain in coordinating the tapping of the sub-dominant fingers. The findings obtained from this study showed strong evidence of the existence of brain functional specialisation and could be used as baseline references in determining the most probable motor pathways in a sample of subjects. Penerbit UKM 2010 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/3672/1/Activation_Characteristics_of_the_Primary_Motor.pdf Ahmad Nazlim Yusoff, and Mazlyfarina Mohamad, and Khairiah Abdul Hamid, and Aini Ismafairus Abd Hamid, and Hanani Abdul Manan, and Mohd Harith Hashim, (2010) Activation characteristics of the primary motor (M1) and supplementary motor (SMA) areas during robust unilateral finger tapping task. Jurnal Sains Kesihatan Malaysia, 8 (2). pp. 43-49. ISSN 1675-8161 http://www.fsk.ukm.my/jurnal/jilid%208%282%29%202010/Chap%208.pdf
institution Universiti Kebangsaan Malaysia
building Perpustakaan Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description This study investigated the functional specialisation characteristics of brain in multiple right-hand dominant subjects pertaining to the activation of the cerebral motor cortices evoked by unilateral finger tapping, especially in primary motor (M1) and supplementary motor (SMA) areas. This multiple-subject study used unilateral (UNIright and UNIleft) selfpaced tapping of hand fingers to activate the M1 and SMA. Brain activation characteristics were analysed using statistical parametric mapping (SPM). Activation for UNIright and UNIleft showed the involvement of contralateral and ipsilateral M1 and SMA. A larger activation area but with a lower percentage of signal change (PSC) were observed in the left M1 due to the control on UNIright (4164 voxels at α = 0.001, PSC = 1.650) as compared to the right M1 due to the control on UNIleft (2012 voxels at α = 0.001, PSC = 2.377). This is due to the influence of the tapping rate effects which is greater than what could be produced by the average effects of the dominant and sub-dominant hands. The significantly higher PSC value observed in the right M1 (p < 0.05) is due to a higher control demand used by the brain in coordinating the tapping of the sub-dominant fingers. The findings obtained from this study showed strong evidence of the existence of brain functional specialisation and could be used as baseline references in determining the most probable motor pathways in a sample of subjects.
format Article
author Ahmad Nazlim Yusoff,
Mazlyfarina Mohamad,
Khairiah Abdul Hamid,
Aini Ismafairus Abd Hamid,
Hanani Abdul Manan,
Mohd Harith Hashim,
spellingShingle Ahmad Nazlim Yusoff,
Mazlyfarina Mohamad,
Khairiah Abdul Hamid,
Aini Ismafairus Abd Hamid,
Hanani Abdul Manan,
Mohd Harith Hashim,
Activation characteristics of the primary motor (M1) and supplementary motor (SMA) areas during robust unilateral finger tapping task
author_facet Ahmad Nazlim Yusoff,
Mazlyfarina Mohamad,
Khairiah Abdul Hamid,
Aini Ismafairus Abd Hamid,
Hanani Abdul Manan,
Mohd Harith Hashim,
author_sort Ahmad Nazlim Yusoff,
title Activation characteristics of the primary motor (M1) and supplementary motor (SMA) areas during robust unilateral finger tapping task
title_short Activation characteristics of the primary motor (M1) and supplementary motor (SMA) areas during robust unilateral finger tapping task
title_full Activation characteristics of the primary motor (M1) and supplementary motor (SMA) areas during robust unilateral finger tapping task
title_fullStr Activation characteristics of the primary motor (M1) and supplementary motor (SMA) areas during robust unilateral finger tapping task
title_full_unstemmed Activation characteristics of the primary motor (M1) and supplementary motor (SMA) areas during robust unilateral finger tapping task
title_sort activation characteristics of the primary motor (m1) and supplementary motor (sma) areas during robust unilateral finger tapping task
publisher Penerbit UKM
publishDate 2010
url http://journalarticle.ukm.my/3672/1/Activation_Characteristics_of_the_Primary_Motor.pdf
http://journalarticle.ukm.my/3672/
http://www.fsk.ukm.my/jurnal/jilid%208%282%29%202010/Chap%208.pdf
_version_ 1643735806901223424
score 13.223943

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