WOROI: 215 - Primary motor cortex
 
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WOROI: 215 - Primary motor cortex

Functionally defined area equivalent with Brodmann area 4 and situated at the precentral gyrus.

Abbreviation: M1
Abbreviation: MI

Variation: Primary motor area

External databases

CoCoMac: DLRPK03-MI GG95-MI GLKR84-MI HTNT00-MI KSI03-MI L86-MI TT93-MI TTNI97-MI CGMBOFal99-M1 GM-M1 K94-M1 MCSGP04-M1 MGBFSMal01-M1 MGGMC03-M1 MH02-M1 MLWJR05-M1 MV92-M1 NHYM96-M1 PG91a-M1 R00-M1 RLBMW94-M1 RTMB99-M1 RTMKBW98-M1

Taxonomy

ParentsSiblingsChildren
Motor cortex
Primary sensorimotor cortex
Motor area
Brodmann area 4
F1
Economo-Koskinas area FA
 

Talairach coordinates

  x     y     z   Functional area WOBIB WOEXP
-34 -22 53 M1c 11 28
-35 -21 54 M1c 11 29
-33 -26 56 M1c 11 30
2 -34 -25 pontine micturition centre 17 50
-37 -16 48 MI 43 144
-29 -16 63 MI 43 144
-37 -17 54 MI 43 145
-25 -15 63 MI 43 145
-35 -22 49 MI/SI 43 146
36 -21 37 Right primary motor cortex 66 204
35 -25 37 Right primary motor cortex 66 204
-6 -22 72 Medial MI 75 230
-38 -24 62 Lateral MI 75 230
-42 -14 56 Lateral MI 75 231
-54 -14 32 MI 75 232
-57 -10 36 Primary motor 83 263
-46 -4 12 Left primary motor cortex, supplementary motor area 84 268
52 -3 42 Motor cortex 90 289
-24 -17 58 M1/S1 95 299
-26 -17 52 M1/S1 cortex 102 319
-24 -22 50 M1/S1 cortex 102 320
16 -20 68 Right MI 108 337
-24 -24 64 Left MI 108 337
42 -14 44 Right MI 108 337
-26 -17 54 M1/S1 cortex 118 367
-24 -13 52 M1/S1 cortex 118 368
52 -10 40 Right primary motor cortex 166 510

Summary

  x     y     z   Description
-33 -18 52 Mean coordinate in left hemisphere
34 -18 35 Mean coordinate in right hemisphere
33 -18 47 Mean coordinate with ignored left/right
2 -34 -25 Minimum coordinate with ignored left/right
57 -3 72 Maximum coordinate with ignored left/right
13 7 19 Standard deviation with ignored left/right
corner cube of WOROI: 215 - Primary motor cortex

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.
Within the primary motor cortex, a hand region was preferentially active in the task in which the stimulus was painful heatP. A. Gelnar; B. R. Krauss; P. R. Sheehe; N. M. Szeverenyi; A. V. Apkarian. A comparative fMRI study of cortical representations for thermal painful, vibrotactile, and motor performance tasks. NeuroImage 10(4):460-82, 1999. PMID: 10493903. DOI: 10.1006/nimg.1999.0482. WOBIB: 75.
Electrodermal activity was positively related to rCBF in the left primary motor cortex (MI, Brodmann's Area 4) and bilaterally in the anterior (Areas 24 and 32) and posterior cingulate cortex (Area 23)M. Fredrikson; T. Furmark; M. T. Olsson; Håkan Fischer; J. Andersson; B. Langstrom. Functional neuroanatomical correlates of electrodermal activity: a positron emission tomographic study. Psychophysiology 35(2):179-85, 1998. PMID: 9529944. WOBIB: 94.
Cerebral blood flow (CBF) increases just below the threshold for statistical significance were seen in the contralateral sensorimotor cortex [primary motor cortex (M1)/primary somatosensory cortex (S1)]K. L. Casey; S. Minoshima; T. J. Morrow; R. A. Koeppe. Comparison of human cerebral activation pattern during cutaneous warmth, heat pain, and deep cold pain. Journal of Neurophysiology 76(1):571-81, 1996. PMID: 8836245. WOBIB: 102.
RESULTS: Brain regions in which activity was significantly correlated with tic occurrence in the group included medial and lateral premotor cortices, anterior cingulate cortex, dorsolateral-rostral prefrontal cortex, inferior parietal cortex, putamen, and caudate, as well as primary motor cortex, the Broca's area, superior temporal gyrus, insula, and claustrumE. Stern; D. A. Silbersweig; K. Y. Chee; Andrew Holmes; M. M. Robertson; M. Trimble; Christopher D. Frith; Richard S. J. Frackowiak; Raymond J. Dolan. A functional neuroanatomy of tics in Tourette syndrome. Archives of General Psychiatry 57(8):741-748, 2000. PMID: 10920461. FMRIDCID: . WOBIB: 130.

Text count

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Roi -> Alphabetic | Hammers | Tzourio-Mazoyer | Svarer | Top | Functional areas | Brodmann areas ]
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