When Does Brain Lateralization Occur?

Activation of left perisylvian structures by speech has been found in infants as young as three months of age (Dehaene-Lambertz et al. 2006), whereas progressively more lateralized responses to speech have been reported to occur later during the first year of life (e.g., Arimitsu et al.

What is lateralization of the brain and why does it occur?

Lateralization of brain function is the view that functions are performed by distinct regions of the brain. For instance, it is believed that there are different areas of the brain that are responsible for controlling language, formulating memories, and making movements.

Does brain lateralization change with age?

Lateralization of function is an important organization of the human brain. ... The increased lateralization with aging was observed in the cerebellum network (CereN), in which the lateralization was significantly increased in the control group, although the same change tendency was observed in the training group.