ANTERIOR COMMISSURE

The 'Anterior Commissure' (precommissure) is a bundle of white fibers, connecting the two cerebral hemispheres across the middle line, and placed in front of the columns of the fornix.
On a sagittal section it is oval in shape, having a long vertical diameter that measures about 5mm.
In 1991 brain studies performed by Simon LeVay, it was noted that the Anterior Commissure was found to be 1/3 larger in men with a homosexual orientation.^[1]

Contents

Connections

See also

References

Additional images

External links

Connections

Its fibers can be traced laterally and backwards on either side beneath the corpus striatum into the substance of the temporal lobe.
It serves in this way to connect the two temporal lobes, but it also contains decussating fibers from the olfactory tracts and is a part of the neospinothalamic tract for pain.

See also

★ posterior commissure

★ corpus callosum

References

1. A difference in hypothalamic structure between heterosexual and homosexual men, LeVay S, , , Science, 1991

Additional images

External links

★ Overview at University of Cambridge

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