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			== Auditory_cortex ==
			<gallery>
			File:Auditory_Cortex_Frequency_Mapping.svg\|Frequency mapping of the auditory cortex
			File:Human_temporal_lobe_areas.png\|Human temporal lobe areas
			</gallery>

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'''Auditory Cortex'''

The '''[[auditory cortex]]''' is the part of the [[temporal lobe]] that processes auditory information in humans and many other vertebrates. It is a part of the [[auditory system]], performing basic and higher functions in hearing, such as possible relations to language switching.

== Structure ==

The auditory cortex is divided into three separate parts: the primary, secondary, and tertiary auditory cortex. These areas are distinguished by their different [[neuron]]al structures and connections, and they perform different functions in the processing of auditory information.

=== Primary Auditory Cortex ===

The '''primary auditory cortex''' (A1) is the first cortical destination of auditory information originating from the [[cochlea]]. It is located on the superior temporal gyrus in the dominant cerebral hemisphere, which is the left hemisphere in about 97% of right-handed individuals and 70% of left-handed individuals.

=== Secondary Auditory Cortex ===

The '''secondary auditory cortex''' (A2) receives input from A1 and from various other brain areas. It is involved in the interpretation of the basic characteristics of sound such as pitch and volume.

=== Tertiary Auditory Cortex ===

The '''tertiary auditory cortex''' has multiple inputs and outputs with the primary and secondary auditory cortexes, as well as various other brain areas. It is involved in higher level processing of complex sounds, and is thought to play a role in the perception and recognition of speech and music.

== Function ==

The auditory cortex is involved in tasks such as identifying and segregating auditory "objects" and detecting the location of a sound in space. It also plays a key role in the perception of music and other complex sounds, as well as in the understanding and production of speech.

== Clinical Significance ==

Damage to the auditory cortex can result in [[auditory agnosia]], a condition in which an individual has difficulty recognizing or interpreting sounds, despite having normal hearing. Other conditions associated with damage to the auditory cortex include [[tinnitus]], [[hyperacusis]], and various forms of [[auditory hallucination]].

== See Also ==

* [[Neuroscience]]
* [[Neuroanatomy]]
* [[Auditory system]]
* [[Temporal lobe]]

[[Category:Neuroanatomy]]
[[Category:Auditory system]]
[[Category:Temporal lobe]]
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Auditory cortex - Revision history

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