WOROI: 104 - Supplementary motor area
 
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WOROI: 104 - Supplementary motor area

To distingish it (SMA) from the pre-supplementary motor area (pre-SMA) this is sometimes called supplementary motor area proper (SMAp). Sometimes the SMA is regarded as a subarea of the medial premotor cortex

Abbreviation: SMA
Abbreviation: MII
Abbreviation: M2

Variation: Supplementary motor cortex
Variation: Supplementary motor

External databases

CoCoMac: ASM94-SMA BG93-SMA CG89b-SMA CGMBOFal99-SMA CP99-SMA DDC90-SMA FV91-SMA GBP87-SMA GG95-SMA GLKR84-SMA GP85-SMA HMS88-SMA HTNT00-SMA ITNAT96-SMA JCH78-SMA L86-SMA MBG91-SMA MH02-SMA NHYM96-SMA PW51-SMA RLBMW94-SMA RTMB99-SMA RTMKBW98-SMA-proper RTMKBW98-SMA TNHTMTal04-SMA TT93-SMA TTNI97-SMA WSMSPT52-SMA B88-MII BGDR99-MII BP87-MII K78-MII PP84-MII PP88-MII SP91a-MII WSMSPT52-MII MH02-SMA-proper MLWJR05-SMA-proper RLM96-SMA-proper RTMB99-SMA-proper RTMKBW98-SMA-proper TT93-SMA-proper

Taxonomy

ParentsSiblingsChildren
Functional area
Nonprimary motor area
Premotor cortex
Motor area
Supplementary motor area proper and pre-supplementary motor area
Brodmann area 6m
F3
Left supplementary motor area
Right supplementary motor area

Talairach coordinates

  x     y     z   Functional area WOBIB WOEXP
-4 -1 55 SMAc 11 28
5 -2 56 SMAi 11 28
-5 -1 55 SMAc 11 29
5 -1 58 SMAi 11 29
-3 2 54 SMAc 11 30
7 6 54 SMAi 11 30
10 -12 48 SMA 16 47
12 -14 60 SMA 16 47
-8 -1 65 Left SMA 23 72
-8 -1 50 Left SMA 23 73
0 -10 71 Supplementary motor area 31 103
-18 3 55 Left supplementary motor area 40 134
-37 -16 48 MI 43 144
-2 3 47 Supplementary motor area 43 144
-29 -16 63 MI 43 144
-2 5 47 Supplementary motor area 43 145
-37 -17 54 MI 43 145
-6 -4 67 Supplementary motor area 43 145
-25 -15 63 MI 43 145
12 -19 45 Right primary sensorimotor cortex, supplementary motor area 48 154
-10 14 52 pre-supplementary motor area 49 160
-3 -12 58 Supplementary motor area 72 225
-9 -12 58 Supplementary motor area 72 227
-4 -8 48 Contralateral supplementary motor area 75 231
-54 -14 32 MI 75 232
2 2 48 Supplementary motor area 82 256
-40 2 31 Supplementary motor 83 262
-59 5 20 Supplementary motor 83 266
-46 -4 12 Left primary motor cortex, supplementary motor area 84 268
-8 -2 48 Supplementary motor area 84 270
-6 -5 54 SMA 87 278
2 0 52 Right supplementary motor area 101 314
8 -12 64 Right dorsal posterior supplementary motor area 108 337
8 -12 60 Right dorsal posterior supplementary motor area 108 337
-8 -18 56 Left dorsal posterior supplementary motor area 108 337
8 -12 56 Right dorsal posterior supplementary motor area 108 337
-4 -16 52 left ventral posterior supplementary motor area 108 337
-6 -20 48 Left ventral posterior supplementary motor area 108 337
-2 8 57 Supplementary motor area proper, pre-supplementary motor area 111 342
-2 20 46 Medial supplementary motor area 111 343
1 -4 54 Inferior supplementary motor area 117 362
5 -6 66 Superior supplementary motor area 117 362
5 -19 47 Supplementary motor area 117 364
51 15 34 Supplementary motor area 128 393
4 10 51 Supplementary motor area 129 395
4 10 51 Supplementary motor area 129 396
7 13 62 Pre-supplementary motor area 132 407
7 13 62 Pre-supplementary motor area 132 408
-8 4 41 Left supplementary motor area/cingulate motor area 148 456
-2 4 40 Inferior supplementary motor area 151 464
0 -4 52 Supplementary motor area 151 465
6 -14 56 Supplementary motor area 151 466
-10 1 57 Supplementary motor area 175 534
-12 -8 44 Left supplementary motor area 182 574
-6 -14 52 Left supplementary motor area 182 575
4 31 35 Supplementary motor area 184 580

Summary

  x     y     z   Description
-15 -4 49 Mean coordinate in left hemisphere
8 -1 53 Mean coordinate in right hemisphere
12 -3 51 Mean coordinate with ignored left/right
0 -20 12 Minimum coordinate with ignored left/right
59 31 71 Maximum coordinate with ignored left/right
14 11 11 Standard deviation with ignored left/right
corner cube of WOROI: 104 - Supplementary motor area

Text contexts

We used functional magnetic resonance imaging to examine the representation pattern for repetitive voluntary finger movements in the primary motor cortex (M1) and the supplementary motor area (SMA) of humansI. Indovina; J. N. Sanes. On somatotopic representation centers for finger movements in human primary motor cortex and supplementary motor area. NeuroImage 13(6 Pt 1):1027-34, 2001. PMID: 11352608. DOI: 10.1006/nimg.2001.0776. WOBIB: 11.
Before regional anesthesia, handgrip caused increased activation in the contralateral sensory motor area, the supplementary motor area, and the ipsilateral cerebellumM. Nowak; K. S. Olsen; I. Law; Søren Holm; O. B. Paulson; N. H. Secher. Command-related distribution of regional cerebral blood flow during attempted handgrip. Journal of Applied Physiology 86(3):819-824, 1999. PMID: 10066691. WOBIB: 16.
This reaction time effect was accompanied by increases in activity in four regions: the right ventrolateral prefrontal cortex, the supplementary motor area, the left superior parietal lobe, and the left anterior parietal cortexE. Hazeltine; Russell Poldrack; John D. E. Gabrieli. Neural activation during response competition. Journal of Cognitive Neuroscience 12(Supplement 2):118-29, 2000. PMID: 11506652. DOI: 10.1162/089892900563984. FMRIDCID: 2-2000-11173. WOBIB: 40.
In the 46 degrees C experiment, positive signal changes were found in the frontal gyri, anterior and posterior cingulate gyrus, thalamus, motor cortex, somatosensory cortex (SI and SII), supplementary motor area, insula, and cerebellumL. R. Becerra; H. C. Breiter; M. Stojanovic; S. Fishman; A. Edwards; A. R. Comite; R. G. Gonzalez; D. Borsook. Human brain activation under controlled thermal stimulation and habituation to noxious heat: an fMRI study. Magnetic Resonance in Medicine 41(5):1044-57, 1999. PMID: 10332889. WOBIB: 72.
To clarify the somesthetic functions of the supplementary motor area (SMA), we recorded the cortical potentials following the median nerve electric stimulation directly from the SMA and investigated the modulation caused by voluntary movements in two patients with intractable SMA seizuresT. Mima; A. Ikeda; S. Yazawa; T. Kunieda; T. Nagamine; W. Taki; H. Shibasaki. Somesthetic function of supplementary motor area during voluntary movements. NeuroReport 10(9):1859-62, 1999. PMID: 10501521. WOBIB: 84.
It was found that pain increased rCBF in the anterior cingulate, ipsilateral thalamus, prefrontal cortex, and contralateral supplementary motor areaL. J. Adler; F. E. Gyulai; D. J. Diehl; M. A. Mintun; P. M. Winter; L. L. Firestone. Regional brain activity changes associated with fentanyl analgesia elucidated by positron emission tomography. Anesthesia & Analgesia 84(1):120-126, 1997. PMID: 8989012. WOBIB: 101.
The single dipole modelling identified as likely the supplementary motor area, SMA area-6 source for N550, and posterior cingulate area-23 for P750Andrew C. N. Chen; David M. Niddam; Helen J. Crawford; Robert Oostenveld; Lars Arendt-Nielsen. Spatial summation of pain processing in the human brain as assessed by cerebral event related potentials. Neuroscience Letters 328(2):190-194, 2002. PMID: 12133585. FMRIDCID: . WOBIB: 136.
Multimodally responsive areas comprised a right-lateralized network including the temporoparietal junction, inferior frontal gyrus, insula and left cingulate and supplementary motor areasJ. Downar; A. P. Crawley; D. J. Mikulis; K. D. Davis. A multimodal cortical network for the detection of changes in the sensory environment. Nature Neuroscience 3(3):277-283, 2000. PMID: 10700261. DOI: 10.1038/72991. FMRIDCID: . WOBIB: 148.
There were activations during both conditions in the supplementary motor area (stronger and more inferior in the active condition) and inferior parietal cortex (on the convexity during active movements and in the depth of the central sulcus during passive movements)C. Weiller; M. Juptner; S. Fellows; M. Rijntjes; G. Leonhardt; S. Kiebel; S. Muller; H. C. Diener; A. F. Thilmann. Brain representation of active and passive movements. NeuroImage 4(2):105-110, 1996. PMID: 9345502. FMRIDCID: . WOBIB: 151.
05) of normalized cerebral counts were located in the left sensorimotor cortex (MISI), right motor cortex, left thalamus, right insula, supplementary motor area (SMA), and bilaterally in the primary auditory cortex and the cerebellumMorten Blinkenberg; Christian Bonde; Søren Holm; Claus Svarer; Jimmy Andersen; Olaf B. Paulson; Ian Law. Rate dependence of regional cerebral activation during performance of a repetitive motor task: a PET study. Journal of Cerebral Blood Flow and Metabolism 16(5):794-803, 1996. PMID: 8784224. DOI: 10.1097/00004647-199609000-00004. FMRIDCID: . WOBIB: 166.

Text count

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