anterior commissure


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to anterior commissure: Posterior commissure, Hippocampal commissure

anterior commissure

[an′tir·ē·ər ′käm·ə·shu̇r]
(neuroscience)
A bundle of nerve fibers that cross the midline of the brain in front of the third ventricle and serve to connect parts of the cerebral hemispheres.
References in periodicals archive ?
An insufficient view of the surgical site, anterior commissure involvement in the craniocaudal direction (T2), invasion of the posterior paraglottic space with arytenoid fixation, massive infiltration of the pre-epiglottic space, and the presence of minor thyroid cartilage erosion (T3) are the most controversial situations with regard to the use of TLM in glottic and supraglottic cancers (24).
Representative images of GFAP immunoreactivity in the corpus callosum and hippocampus of air- and CAPs-exposed male (A) and female (B) mice at PND14, with (C) relative quantification of GFAP in those regions and in the dentate gyrus, cortex, midbrain, striatum, and anterior commissure immediately adjacent.
Abbreviations: AC = anterior commissure, ACA = anterior cerebral artery, ahPCG = arm-hand region of precentral gyrus, BRRC = Brain Rehabilitation Research Center, CIMT = constraint-induced movement therapy, CT = computed tomography, DTT = diffusion tensor tractographic, fMRI = functional magnetic resonance imaging, MAL = Motor Activity Log, MCA = middle cerebral artery, MRI = magnetic resonance imaging, PC = posterior commissure, PVWM = periventricular white matter, SD = standard deviation, UL = upper limb, VA = Department of Veterans Affairs.
Window anterior commissure relaxation laryngoplasty in the management of high-pitched voice disorders.
Description: Pentagonal shell, smooth, maximum wide slightly anterior mid line, anterior commissure episulcate, median sinus smaller and narrower than the lateral, umbo sub-erect.
Direct laryngoscopy revealed a verrucous lesion of the right true vocal fold that approached the anterior commissure and arytenoid.
6,7] Review of the literature has revealed only 2 reported cases in the German literature of isolated laryngeal metastasis to the anterior commissure and the false vocal cords, both occurring 6 years after nephrectomy.
Allen and Gorsky reported that a structure known as the anterior commissure (a group of fibers interconnecting the temporal lobes and located near the hypothalamus) was larger in women and in homosexual men than in heterosexual men.
According to Julian Jaynes, the phenomenon of inspiration as the hearing of voices (of the Muses or of any other agency) is explained by the fact that the right hemisphere (parieto/temporal location corresponding to Wernicke's area) originates auditory signals which are transmitted to the left hemisphere's Wernicke's area through the anterior commissure.
A devastating weakness in this study--which at least does not exist in LeVay's--is the nearly universal presumption among neuroanatomists that the anterior commissure has no direct influence on sexual behavior.
178-185) presented evidence that a thirteen-month-old "rubella-child" had "numerous defects of the cerebrum," including "agenesis of the corpus callosum and anterior commissure.
CCortex mimics the structure of the human brain with a layered distribution of neural nets and detailed interconnections, and closely emulates specialized regions of the human cortex, corpus callosum, anterior commissure, amygdale and hippocampus.

Full browser ?