The team focused on the primary auditory cortex
, which is the first cortical region to receive auditory signals from the ears via other parts of the brain and the nonprimary auditory cortex, which plays a more sophisticated role in processing those stimuli.
Differential responses of primary auditory cortex
in autism spectrum disorder with auditory hypersensitivity.
There have been studies that showed a certain level of intramodal plasticity in the auditory cortex, particularly in the tonotopic area of the primary auditory cortex
When dogs heard canine vocalizations, regions in the front part of the primary auditory cortex
, a swath of neural tissue in the middle of the brain that helps detect sound, became active.
Emotional sounds, such as crying and laughter also had a similar pattern of activity, with an area near the primary auditory cortex
lighting up in dogs and humans.
The primary auditory cortex
is the region of the brain that is responsible for processing of auditory (sound) information.
Consequently, the primary auditory cortex
on each side of the brain is sensitive to stimulation through either ear but is more strongly driven by contralateral stimulation.
Primary auditory cortex
damage produces difficulties in interpreting sound or location of sound in space.
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.
These two loops are activated as follows: peripheral inputs activate thalamic core cells, which in turn participate in topographic activation of middle cortical layers; for example, ear [right arrow] cochlea [right arrow] auditory brainstem nuclei ventral subdivision of medial geniculate (MGv) [right arrow] primary auditory cortex
(A1) (see Freund, Martin, and Whitteridge 1985; Freund et al.