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Images of the Brain Refute 1960s Theory on the Domain of Language

2nd January, 2018

[Source: Science Daily]

In 1968, when there were no techniques to observe how the brain worked in vivo, the neurologist Norman Geschwind discovered in deceased persons that a region of the temporal lobe, the planum temporale, was larger in the left than in the right hemisphere. As in most of the population, language processing is located in that hemisphere, the neurologist proposed that asymmetry was an indicator of the lateralization of that function.

Almost fifty years later, a team of researchers from the European MULTI-LATERAL project has used magnetic resonance imaging to study brain areas in vivo and has refuted that theory. The anatomical asymmetry of the planum temporale that hosts auditory functions is not a marker of the lateralization in the left hemisphere of language functions.

Read the Rest of this Article on Science Daily

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