Transverse temporal gyrus
Transverse temporal gyrus
The transverse temporal gyrus (also known as Heschl's gyrus) is a region of the cerebral cortex located in the temporal lobe of the human brain. It is situated within the lateral sulcus (Sylvian fissure) and is primarily involved in the processing of auditory information.
Anatomy[edit]
The transverse temporal gyrus is found on the superior surface of the temporal lobe, running obliquely from the lateral sulcus. It is typically the first cortical structure to process incoming auditory signals from the cochlea via the auditory pathway. The gyrus is often divided into multiple gyri, with the number varying among individuals.
Function[edit]
The primary function of the transverse temporal gyrus is auditory processing. It is part of the primary auditory cortex (Brodmann areas 41 and 42), which is responsible for the perception of sound. This region plays a crucial role in the detection of sound frequency, intensity, and temporal aspects of auditory stimuli.
Clinical Significance[edit]
Damage to the transverse temporal gyrus can result in various auditory processing disorders. Lesions in this area may lead to cortical deafness, where the ability to hear sounds is impaired despite the absence of damage to the auditory apparatus. Additionally, abnormalities in this region have been associated with auditory hallucinations in conditions such as schizophrenia.
Research[edit]
Ongoing research is focused on understanding the precise role of the transverse temporal gyrus in auditory perception and its involvement in language processing. Studies using functional MRI (fMRI) and electroencephalography (EEG) have provided insights into the neural mechanisms underlying auditory processing in this region.
See Also[edit]
References[edit]
External Links[edit]
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