Middle temporal gyrus

Middle temporal gyrus
Lateral surface of left cerebral hemisphere, viewed from the side. (Middle temporal gyrus shown in orange.)
Right temporal lobe (shown in green). Middle temporal gyrus is visible at the middle of the green area.
Details
Part of	Temporal lobe
Artery	Middle cerebra and Posterior cerebral
Identifiers
Latin	Gyrus temporalis medius
NeuroNames	hier-119
NeuroLex ID	Middle temporal gyrus
TA	A14.1.09.146
FMA	61906
Anatomical terms of neuroanatomy [edit on Wikidata]

Middle temporal gyrus is a gyrus in the brain on the Temporal lobe. It is located between the superior temporal gyrus and inferior temporal gyrus.

The middle temporal gyrus is bounded by:

• the superior temporal sulcus above;
• the inferior temporal sulcus below;
• an imaginary line drawn from the preoccipital notch to the lateral sulcus posteriorly.

Its exact function is unknown, but it has been connected with processes as different as contemplating distance, recognition of known faces, and accessing word meaning while reading.^[1] Some studies indicate that lesions of the posterior region of the middle temporal gyrus, in the left cerebral hemisphere, may result in alexia and agraphia for kanji characters (characters of Chinese origin used in Japanese writing).^[2]

Additional images

• 
  Position of middle temporal gyrus(shown in red).
• 
  Drawing to illustrate the relations of the brain to the skull.
• 
  Lateral view of a human brain, main gyri labeled.
• 
  Cerebrum. Lateral view. Deep dissection. Superior temporal gyrus is labeled at bottom center.

References

1. Acheson, DJ.; Hagoort, P. (Oct 2013). "Stimulating the brain's language network: syntactic ambiguity resolution after TMS to the inferior frontal gyrus and middle temporal gyrus.". J Cogn Neurosci. 25 (10): 1664–77. doi:10.1162/jocn_a_00430. PMID 23767923.
2. Sakurai, Y.; Mimura, I.; Mannen, T. (2008). "Agraphia for kanji resulting from a left posterior middle temporal gyrus lesion.". Behav Neurol. 19 (3): 93–106. PMID 18641429.