Language dominant hemisphere

In neurology, the language- dominant hemisphere is understood to mean the different lateral position of the human language center . This fact, which emerges from statistical surveys, is also referred to as the question of different lateralization . Developmental physiological surveys showed that both cerebral hemispheres are usually equally capable of developing characteristics that underlie the use of language. Nevertheless, the preference for left-sided language dominance seems innate. Dominance therefore denotes both a statistical and a hereditary biological fact. Usually, the development of language dominance goes hand in hand with the lateralization of the general motor and sensory functions. Therefore, the left-sided dominance of language is usually connected with the question of handedness . This means that right-handers usually - in approx. 95% of cases - have a language-dominant left cerebral hemisphere. However, this is not necessarily the case. Conversely, in the majority of left-handers, the contralateral right side is not the seat of the language center, but there is also a left-sided language dominance. As a result, aphasia in left-handed people, which can be traced back to left-sided brain damage, usually regresses more quickly.

Individual evidence

1. ^ Poeck, Klaus : Neurology . Springer, Berlin ⁸ 1992, ISBN 3-540-53810-0 ; Re. “Lateralization in aphasia”: p. 134

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