同: 中心前溝

WordNet

(anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/10/01 18:15:21」(JST)

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The precentral sulcus lies parallel to, and in front of, the central sulcus. (A sulcus is one of the prominent grooves on the surface of the human brain.)

The precentral sulcus divides the inferior, middle and superior frontal gyri from the precentral gyrus. In the majority of brains, the precentral sulcus is divided into two parts: the inferior precentral sulcus and the superior precentral sulcus. However, the precentral sulcus may also be divided into three parts or form one continuous sulcus.

Additional images

Position of precentral sulcus (shown in red).
Lateral surface of right frontal lobe. Precentral sulcus is labeled by * and **.
Medial surface of cerebral hemisphere.Medial view.Deep dissection.
Medial surface of cerebral hemisphere.Medial view.Deep dissection.
Medial surface of cerebral hemisphere.Medial view.Deep dissection.

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English Journal

Speech disturbances due to left precentral cortical lesions.

Kasahata N.Author information a Division of Neurology, Department of Medicine , Tokyo Metropolitan Ohtsuka Hospital , Toshima-ku , Japan.AbstractWe encountered two patients with lesions predominantly localized to the left precentral cortex who presented with speech disorders. Patient 1 had a lesion localized to the anterior part of the left precentral cortex along the precentral sulcus, in the middle part of the convexity. Patient 1 predominantly exhibited disturbance of prosody. Patient 2 had a lesion localized to the left precentral cortex, located slightly more posterior and more inferior in the convexity. Patient 2 predominantly exhibited disturbance of articulation, with distortion of sounds without apparent inconsistency. Even lesions localized to the left precentral cortex present with various types of speech disturbance.
Neurocase.Neurocase.2014 Jun;20(3):328-37. doi: 10.1080/13554794.2013.770884. Epub 2013 Apr 3.
We encountered two patients with lesions predominantly localized to the left precentral cortex who presented with speech disorders. Patient 1 had a lesion localized to the anterior part of the left precentral cortex along the precentral sulcus, in the middle part of the convexity. Patient 1 predomin
PMID 23548114

An investigation into the origin of anatomical differences in dyslexia.

Krafnick AJ, Flowers DL, Luetje MM, Napoliello EM, Eden GF.Author information Center for the Study of Learning, Georgetown University Medical Center, Washington, DC 20057, and Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina 27157.AbstractStudies have converged in their findings of relatively less gray matter volume (GMV) in developmental dyslexia in bilateral temporoparietal and left occipitotemporal cortical regions. However, the interpretation of these results has been difficult. The reported neuroanatomical differences in dyslexia may be causal to the reading problems, following from, for example, neural migration errors that occurred during early human development and before learning to read. Alternatively, less GMV may represent the consequence of an impoverished reading experience, akin to the experience-dependent GMV differences attributed to illiterate compared with literate adults. Most likely, a combination of these factors is driving these observations. Here we attempt to disambiguate these influences by using a reading level-matched design, where dyslexic children were contrasted not only with age-matched controls, but also with younger controls who read at the same level as the dyslexics. Consistent with previous reports, dyslexics showed less GMV in multiple left and right hemisphere regions, including left superior temporal sulcus when compared with age-matched controls. However, not all of these differences emerged when dyslexics were compared with controls matched on reading abilities, with only right precentral gyrus GMV surviving this second analysis. When similar analyses were performed for white matter volume, no regions emerged from both comparisons. These results indicate that the GMV differences in dyslexia reported here and in prior studies are in large part the outcome of experience (e.g., disordered reading experience) compared with controls, with only a fraction of the differences being driven by dyslexia per se.
The Journal of neuroscience : the official journal of the Society for Neuroscience.J Neurosci.2014 Jan 15;34(3):901-8. doi: 10.1523/JNEUROSCI.2092-13.2013.
Studies have converged in their findings of relatively less gray matter volume (GMV) in developmental dyslexia in bilateral temporoparietal and left occipitotemporal cortical regions. However, the interpretation of these results has been difficult. The reported neuroanatomical differences in dyslexi
PMID 24431448

Revealing the neural networks associated with processing of natural social interaction and the related effects of actor-orientation and face-visibility.

Saggar M, Shelly EW, Lepage JF, Hoeft F, Reiss AL.Author information Center for Interdisciplinary Brain Sciences Research, Department of Psychiatry and Behavioral Sciences, Stanford University, USA. Electronic address: saggar@stanford.edu.AbstractUnderstanding the intentions and desires of those around us is vital for adapting to a dynamic social environment. In this paper, a novel event-related functional Magnetic Resonance Imaging (fMRI) paradigm with dynamic and natural stimuli (2s video clips) was developed to directly examine the neural networks associated with processing of gestures with social intent as compared to nonsocial intent. When comparing social to nonsocial gestures, increased activation in both the mentalizing (or theory of mind) and amygdala networks was found. As a secondary aim, a factor of actor-orientation was included in the paradigm to examine how the neural mechanisms differ with respect to personal engagement during a social interaction versus passively observing an interaction. Activity in the lateral occipital cortex and precentral gyrus was found sensitive to actor-orientation during social interactions. Lastly, by manipulating face-visibility we tested whether facial information alone is the primary driver of neural activation differences observed between social and nonsocial gestures. We discovered that activity in the posterior superior temporal sulcus (pSTS) and fusiform gyrus (FFG) was partially driven by observing facial expressions during social gestures. Altogether, using multiple factors associated with processing of natural social interaction, we conceptually advance our understanding of how social stimuli is processed in the brain and discuss the application of this paradigm to clinical populations where atypical social cognition is manifested as a key symptom.
NeuroImage.Neuroimage.2014 Jan 1;84:648-56. doi: 10.1016/j.neuroimage.2013.09.046. Epub 2013 Sep 29.
Understanding the intentions and desires of those around us is vital for adapting to a dynamic social environment. In this paper, a novel event-related functional Magnetic Resonance Imaging (fMRI) paradigm with dynamic and natural stimuli (2s video clips) was developed to directly examine the neural
PMID 24084068

Japanese Journal

グリオーマの摘出

脳神経外科ジャーナル = Japanese journal of neurosurgery 21(12), 937-942, 2012-12-20
NAID 10031131663

Comparison of the Choice Effect and the Distance Effect in a Number-Comparison Task by fMRI

PLoS ONE 6(6), e21716, 2011-06
NAID 120003204177

脳卒中後疼痛(視床痛)の病態と外科治療(<特集>痛みの脳神経外科治療)

脳神経外科ジャーナル 17(3), 205-213, 2008-03-20
NAID 110006623892

「中心前溝」

Brain: Precentral sulcus
	Precentral sulcus of the human brain.
	Lateral surface of left cerebral hemisphere, viewed from above.
Latin	Sulcus praecentralis
TA	A14.1.09.120
FMA	FMA:83800