Fusiform gyrus

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Sagittal section through the brain. According to Gray : fusiform gyrus located in the lower center (highlighted in orange).

The gyrus fusiformis , gyrus occipitotemporalis lateralis or spindle turn is a brain turn (from Greek gyrus "turn" and from Latin fusus "spindle") of the cerebral cortex of the temporal lobe .

Anatomical location

The fusiform gyrus is included in the temporal lobe . Laterally it is bounded by the sulcus occipitotemporalis and is adjacent to the gyrus temporalis inferior , towards the middle (medial) it is bounded by the sulcus rhinicus and sulcus collateralis and is adjacent to the gyrus occipitotemporalis medialis .

Function and damage

The Fusiform Face Area (FFA) of the fusiform gyrus, especially of the right temporal lobe, is necessary to recognize faces . Adjacent to the FFA is the Fusiform Body Area (FBA), which plays a role in the detection of bodies and body parts.

Damage or inactivation of the fusiform gyrus in the fusiform face area (FFA) - especially in the right hemisphere - leads to prosopagnosia (facial blindness), a disease in which (known) people can no longer be recognized by their faces. With very large lesions, you can no longer see yourself in the mirror. Overall, the fusiform gyrus serves to identify larger, abstract object categories.

Individual evidence

  1. ^ His, W. (1895). The anatomical nomenclature. Nomina Anatomica. The anatomical society on its IX. At the meeting in Basel . Leipzig: Verlag Veit & Comp.
  2. ↑ Federative Committee on Anatomical Terminology (1998). Terminologia Anatomica . Stuttgart: Thieme
  3. ^ Duus' Neurological-topical Diagnostics, Mathias Bähr and Michael Frotscher, 8th edition (2003), p. 393, Georg Thieme Verlag, ISBN 3-13-535808-9
  4. ^ Neuroanatomie, Martin Trepel, 1st edition (1995), Urban & Schwarzenberg, ISBN 3-541-13431-3
  5. ↑ Kanwisher et al. (1997) The fusiform face area. J Neurosci 17, 4302-4311
  6. ^ Peelen & Downing (2005) Selectivity for the Human Body in the Fusiform Gyrus. J Neurophysiol 93, 603-608
  7. ^ Lhermitte & Pillon (1973) La prosopagnosie. Role de l'hemisphere droit dans la perception visual. Rev Neurol 131, 791-812
  8. ^ Niels Birbaumer, Robert F. Schmidt: Biological Psychology (Springer textbook), Springer Berlin Heidelberg; 7., completely revised. u. supplemented edition (July 21, 2010), ISBN 3540959378 , p. 91