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The auditory ventral stream (AVS) connects the auditory cortex with the middle temporal gyrus and temporal pole, which in turn connects with the inferior frontal gyrus. This pathway is responsible for sound recognition, and is accordingly known as the auditory 'what' pathway. The functions of the AVS include the following.
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 .
Echoic memory is the sensory memory that registers specific to auditory information (sounds). Once an auditory stimulus is heard, it is stored in memory so that it can be processed and understood. [ 1 ]
The human auditory pathway involves an intricate chain of events, beginning with pressure waves in the air that cause air particles to vibrate. In the middle ear, the moving air particles cause ...
Both pathways project in humans to the inferior frontal gyrus. The most established role of the auditory dorsal stream in primates is sound localization. In humans, the auditory dorsal stream in the left hemisphere is also responsible for speech repetition and articulation, phonological long-term encoding of word names, and verbal working memory.
The function of the auditory dorsal pathway is to map the auditory sensory representations onto articulatory motor representations. Hickok & Poeppel claim that the auditory dorsal pathway is necessary because, "learning to speak is essentially a motor learning task. The primary input to this is sensory, speech in particular.
In an ascending pathway, various acoustic reflexes and sound localisation are regulated via relay stations. The impulse reaches the auditory cortical projections on the superior temporal gyrus, which is the auditosensory cortex. This is the first site of unprocessed recognition of sound.
Echoic memory is a fast decaying store of auditory information, ... or to a pathway traveling through the area is actually responsible for the observed deficit.