Related Experiment Video
Updated: Aug 15, 2026

Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound (fTCD)
Published on: September 27, 2010
[Crossed anarthria and a dissociated lateralisation of language]
J-L Renard1, E Baudelle, C Nioche
1Service de Neurologie, Val-de-Grâce, Paris. jlrvdg@yahoo.fr
Introduction:
Crossed anarthria cases are uncommon and rather old.
Observation:
We report the case of a right-handed 55-year-old man who presented crossed pure anarthria due to a hemorrhage in the premotor cortex (feet of F1 and F2) and in the high part of Pierre-Marie's quadrangle.
Conclusion:
The study of different tasks (articulation, verbal fluency, direct object word-generation from a verb) showed a dissociated lateralisation of his language. Lexico-semantic and grammatical tasks are processed in the left hemisphere. Articulation programming occurs in the right hemisphere.
Related Concept Videos
Lateralization
Language and Cognition
Higher Mental Functions of the Brain: Language
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Cerebral Hemispheres
Visual Agnosia
Components of Language
