What does the Planum temporale do?
The left planum temporale (PT), often referred to as Wernicke’s area, is involved in auditory processing and receptive language (Nakada et al., 2001). As such, it has been associated with lexical processing (Bookheimer, 2002).
Is the Planum temporale Wernicke’s area?
The planum temporale is the cortical area just posterior to the auditory cortex (Heschl’s gyrus) within the Sylvian fissure. It is a triangular region which forms the heart of Wernicke’s area, one of the most important functional areas for language.
What is auditory cortex?
(4) The auditory cortex of the human brain receives and processes the contents of sounds, voices, or music.
What is the secondary auditory cortex?
Secondary auditory cortex, which receives projections from the primary auditory cortex, lies along the superior edge of the lateral surface of the temporal lobe thereby surrounding the primary cortex. Different frequencies of sound are represented in particular regions of the auditory cortex.
What lobe is the Planum temporale located?
temporal lobe
THE PLANUM temporale (PT) is located on the posterosuperior surface of the temporal lobe. This brain region is of particular interest because it evinces the most left-right asymmetry in the human brain (left>right in two thirds of all brains).
In what region of the brain is the Planum temporale located?
The planum temporale (PT) is a triangular area situated on the superior temporal gyrus (STG), which has enjoyed a resurgence of interest across several disciplines, including neurology, psychiatry and psychology.
Is auditory cortex bilateral?
The primary auditory cortex lies in the anterior–posterior transverse temporal gyrus of Heschl. Each ear has bilateral representation in the auditory cortex, and thus it is possible to remove the nondominant hemisphere in humans without significant effect on either the PTA or the discrimination of distorted speech.
What part of the brain is the auditory cortex in?
The primary auditory cortex (A1) is located on the superior temporal gyrus in the temporal lobe and receives point-to-point input from the ventral division of the medial geniculate complex; thus, it contains a precise tonotopic map.
What does the auditory cortex allow you to do?
The auditory cortex plays a critical role in our ability to perceive sound. It is thought to be integral to our perception of the fundamental aspects of an auditory stimulus, like the pitch of the sound.
Which is the dictionary definition of planum temporale?
dictionary thesaurus. noun. planum tem·po·ra·le | \\-ˌtem-pə-ˈrā-lē \\. : an area of the cerebral cortex between Heschl’s gyrus and the sylvian fissure that is involved in speech and is usually larger in the cerebral hemisphere on the left side of the brain.
Are there gender differences in the planum temporale?
Imaging has repeatedly suggested gender marked differences in planum temporale surface area asymmetry. There have been multiple findings suggesting a greater leftward surface area asymmetry in male subjects, with no significant difference as mediated by gender of the right part of the planum temporale.
Why is the planum temporale symmetrical in dyslexia?
The planum temporale seems to be symmetrical in individuals with dyslexia, which may indicate that their low specialization in the left hemisphere is a cause of their disability. This symmetry also holds for people who stutter, although it is also possible to see a larger right planum temporale in stutters.
Why is the planum temporale important to speech processing?
The prevalence of planum temporale (PT) asymmetry and its location in auditory areas close to Wernicke’s area for speech comprehension motivated the hypothesis that PT was the site for auditory speech and language processing (Geschwind & Levitsky, 1968 ).