auditory cortex


Also found in: Dictionary, Thesaurus, Wikipedia.

au·di·to·ry cor·tex

the region of the cerebral cortex that receives the auditory radiation from the medial geniculate body, a thalamic cell group receiving auditory input from the cochlear nuclei in the rhombencephalon; it corresponds approximately to Brodmann areas 41 and 42 and is tonotopically organized.
Synonym(s): auditory area

auditory cortex

au·di·to·ry cor·tex

(aw'di-tōr-ē kōr'teks)
The region of the cerebral cortex that receives the auditory radiation from the medial geniculate body, a thalamic cell group receiving auditory input from the cochlear nuclei in the rhombencephalon.
Synonym(s): auditory area.
References in periodicals archive ?
Sensorineural hearing loss occurs from damage to the cochlea or disruption of the transmission of neural impulses from the cochlea to the auditory cortex.
The damaged signal causes random neural activity in the auditory cortex, triggering the sound of tinnitus.
It's a possible distress signal from the amygdala to the auditory cortex," said study author Dr Sukhbinder Kumar.
While the precise organization of the human auditory cortex is not well understood and currently under intense study, the primary auditory cortex in mammals has been found to be surrounded by as many as 11 distinct regions, each devoted to processing a particular functional dimension of auditory information [22-23].
Our technique provides that precision by rewiring damaged neural circuits in auditory cortex and reversing the spontaneous activity that generates the phantom sound," Engineer said.
The research team discovered that the initial neural response of the primary visual cortex (V1) and primary auditory cortex (A1), the first cortical areas of the brain receiving information about the stimuli, is amplified by attention.
Yet, when they contend that 'The same evolutionary pressure that led individual species to optimize their auditory cortex for different functions also operates on small groups of individuals living in their particular soundscape niche' (p.
Exposure to the non-coplanar polychlorinated biphenyl PCB95 during gestation and nursing causes abnormal development of the auditory cortex in rats, affecting the brain's representation of what is heard, according to new research in the 1 May 2007 issue of Proceedings of the National Academy of Sciences.
Based upon research into memory enhancement, the Earworms system utilizes the power of music to connect and create additional neural paths to the words, phrases and grammatical structures of a language in the area of the auditory cortex responsible for long-term memory.
19,20) Therefore, a decrease in the peripheral input to the auditory cortex leaves it open to receiving input from other areas of the brain, such as the neighboring cortical areas.
Let's hear it for the boffins at Dartmouth College in New England who have pinpointed the part of the brain which remembers catchy tunes - the guilty party is something called the auditory cortex, which handles information from the ears, and which latches onto melodies and won't let the damn things go.
Mathalon of Yale University in New Haven hypothesized that speaking generates a corollary discharge of motor speech commands that are transmitted to the auditory cortex, suppressing or dampening its response to self-generated speech sounds.