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The auditosensory cortex is the part of the auditory system that is associated with the sense of hearing in humans. It occupies the bilateral primary auditory cortex in the temporal lobe of the mammalian brain. [1] The term is used to describe Brodmann areas 41 and 42 together with the transverse temporal gyrus. [2]
Humans retain a relatively strong auditory image for details in pitch, which can be improved with musical training.The development of cultivating an auditory image with absolute pitch, which is being able to determine a note upon hearing a sound, however, is dependent on childhood musical training and genetic factors. [3]
Coronal section of a human brain. BA41(red) and BA42(green) are auditory cortex. BA22(yellow) is Brodmann area 22, HF(blue) is hippocampal formation and pSTG is posterior part of superior temporal gyrus. The auditory cortex is the part of the temporal lobe that processes auditory information in humans and many other vertebrates.
Diagram of human brain showing surface gyri and the primary auditory cortex ... reproduction of combined images Surfacegyri.JPG by Reid Offringa and Ventral-dorsal ...
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 angular gyrus is the part of the brain associated with complex language functions (i.e. reading, writing and interpretation of what is written). Lesion to this part of the brain shows symptoms of the Gerstmann syndrome : effects include finger agnosia, alexia (inability to read), acalculia (inability to use arithmetic operations), agraphia ...
[20] [24] [25] [26] Recently, evidence accumulated that indicates homology between the human and monkey auditory fields. In humans, histological staining studies revealed two separate auditory fields in the primary auditory region of Heschl's gyrus, [27] [28] and by mapping the tonotopic organization of the human primary auditory fields with ...
The transverse temporal gyrus, also called Heschl's gyrus (/ ˈ h ɛ ʃ əl z ˈ dʒ aɪ r aɪ /) or Heschl's convolutions, is a gyrus found in the area of each primary auditory cortex buried within the lateral sulcus of the human brain, occupying Brodmann areas 41 and 42.