After HA use, activity was reduced in frontal and occipital regions and increased in the auditory cortex, Wernicke's area
, and regions involved multimodal integration (Table 4).
While targeted testing is preferable, often both Broca's and Wernicke's areas
are activated during both productive and receptive language tasks, making it not essential to tailor the language task to the lesion location.
In Geschwind's model the grammatical and lexical representations of language arise in the superior temporal gyrus (Wernicke's area
) of the LH, and these representations are transformed via a band of association fibers that course around the sylvian lip through the angular gyrus and into the frontal lobe, terminating in the third frontal convolution of the LH (Broca's Area).
" An adult with damage to Wernicke's area
may articulate well and form grammatically correct sentences, but provides very little coherent information in his speech.
The volume of Cluster #9 (Wernicke's area
: BA21 and BA22) is over 60 times smaller than the volume of Cluster #1.
Similarly, H2 (that internal verbalization fades) is strongly supported by significant negative contrasts in Broca's area (BA 44, 45) and in Wernicke's area
Scientists have long thought that human speech is processed towards the back of the brain's cerebral cortex, behind auditory cortex where all sounds are received - a place famously known as Wernicke's area
after the German neurologist who proposed this site in the late 1800s based on his study of brain injuries and strokes.
This region came to be known as Wernicke's area
, connected to Broca's area by a neural pathway called the arcuate fasciculus.
(1998) measured brain activation patterns and found that the dyslexic adult readers and controls differed in that the former showed relative underactivation in posterior regions (Wernicke's area
, the angular gyrus, and striate cortex) and relative overactivation in an anterior region (inferior frontal gyms).
* The brain pathway for normal reading has also been identified (from visual area to angular gyrus to Wernicke's area
to Broca's area), as have the sequences involved in memory storage.
These include Wernicke's area
, which contributes to language comprehension, as well as parts of the visual cortex and a section of the association cortex considered pivotal to integrating the sight of printed letters with their corresponding sounds.
Within this latter part of the brain, Wernicke's area
is believed to be responsible for finding words and feeding them to other parts of the brain.