Figure 5 shows another example of regional response differences within STG in a left, language-dominant hemisphere subject (L147, Fig. 5A).
In the left language areas, the focus of significance was shifted toward TP but still comprised middle TC.
Oh and Koh (2009) reported in adults with temporal lobe epilepsy that among 10 patients with a left-sided focus and right hemisphere language, seven showed rightward planum temporale asymmetry, whereas leftward planum temporale asymmetry was found in most patients with left language dominance.
As in our findings, the region showing shared sensitivity to lower- and higher-level stimuli was significantly lateralized in the left, language-dominant hemisphere.
The neurologist Norman Geschwind proposed that the greater testosterone levels found in males may inhibit development in the left (language-related) side of the brain, explaining why boys have more linguistic difficulties than girls.
In the auditory cortices, activity increased bilaterally if the spatially discordant auditory stimulation was incongruent, but only in the left, language-dominant side when congruent.
There have been other studies that have used brain stimulation techniques, with or without functional neuroimaging, and have reported a supportive role for the right hemisphere in language recovery after a left hemisphere infarct (Winhuisen et al., 2005, 2007) or gliomas (Thiel et al., 2005).
Alternatively, de-correlation of responses in left and right anterolateral STCs could occur as a remote consequence of a lesion elsewhere in left hemisphere language cortex, in the absence of structural disruption of anterior commissure tracts.
The main Twitter site has been available in those two languages, as well as Hebrew and Urdu, since March (which also marked the first time Twitter was available in right-to-left languages).
It is always better to position the navigation menu to the left side rather than on the right (this is reversed in right-to-left languages).
In the last hundred years cerebral laterality in the processing of language has received much attention and studies have found support for the existence of a left hemisphere dominance in the processing of language in humans (e.g. [1] [3]).
