
Inclusive Anatomy
Structure:
The posterior part of the superior temporal gyrus is a functional area of the brain in the posterior part of the dominant hemisphere's superior temporal gyrus. Encircling the auditory cortex along the lateral sulcus, this region marks the convergence point between the temporal and parietal lobes in the brain.[1]
Function:
The posterior part of the superior temporal gyrus processes input from the auditory cortex and is responsible for the understanding of both written and spoken language.[2] Damage to this region leads to a condition known as receptive fluent aphasia. In this condition, patients typically exhibit fluent speech, but their words lack coherent meaning. Another characteristic of this type of aphasia is auditory incomprehension, where the person is unable to understand spoken language directed at them.[3]
References:
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Moore KL, Dalley AF, Agur AMR. Clinically Oriented Anatomy. 6th ed. Lippincott Williams & Wilkins; 2010.
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Kennison S. Introduction to Language Development. Sage; 2013.
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Wernicke K. The aphasia symptom-complex: a psychological study on an anatomical basis (1875). In: Eling P, ed. Reader in the History of Aphasia: From Franz Gall to Norman Geschwind. Vol 4. John Benjamins Publishing; 1995:69-89.
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