Search results
Results from the WOW.Com Content Network
The auditory cortex is composed of fields that differ from each other in both structure and function. [19] The number of fields varies in different species, from as few as 2 in rodents to as many as 15 in the rhesus monkey. The number, location, and organization of fields in the human auditory cortex are not known at this time.
Cortical deafness is a rare form of sensorineural hearing loss caused by damage to the primary auditory cortex. Cortical deafness is an auditory disorder where the patient is unable to hear sounds but has no apparent damage to the structures of the ear (see auditory system ).
The auditosensory cortex defines Brodmann area 42, which is part of the primary auditory cortex.It is also known as the posterior transverse temporal area, [2] located superiorly within the temporal lobe of the cerebral cortex.
Finally, the signal goes to the auditory cortex of the temporal lobe to be interpreted as sound. [83] Hearing loss is most commonly caused by long-term exposure to loud noises, from recreation or from work, that damage the hair cells, which do not grow back on their own. [84] [85] [9]
The auditory cortex is composed of Brodmann areas 41 and 42, also known as the anterior transverse temporal area 41 and the posterior transverse temporal area 42, respectively. Both areas act similarly and are integral in receiving and processing the signals transmitted from auditory receptors .
In the past, research was primarily based on observations of loss of ability resulting from damage to the cerebral cortex. In the modern era, medical imaging has represented a radical step forward for research on speech processing. It is now known that a whole series of relatively large brain areas are involved in speech processing.
The damage in these cases tended to focus around the temporal pole. Consistently, removal of the anterior temporal lobe was also associated with loss of music perception, [64] and recordings directly from the anterior auditory cortex revealed that in both hemispheres, music is perceived medially to speech. [65]
The primary auditory cortex is surrounded by secondary auditory cortex, and interconnects with it. These secondary areas interconnect with further processing areas in the superior temporal gyrus , in the dorsal bank of the superior temporal sulcus , and in the frontal lobe .