The brain's hemispheres are not equal. At first glance, the human body seems to be symmetrical: two arms, two legs, two eyes, two ears, and even the nose and mouth appear to be mirrored on an imaginary axis that divides most people's faces. Finally, the brain is split into two nearly equal-sized ha
The scientists found that asymmetry is influenced by a person’s experiences.At first glance, the human body seems to be symmetrical: two arms, two legs, two eyes, two ears, and even the nose and mouth appear to be mirrored on an imaginary axis that divides most people’s faces. Finally, the brain is split into two nearly equal-sized halves, and the furrows and bulges follow a similar pattern.
For instance, dyslexia is characterized by a lack of left asymmetry in certain language areas. Inadequate brain lateralization may also contribute to conditions such as schizophrenia, autism spectrum disorders, and children’s hyperactivity. Whereas on the right side the so-called frontoparietal network, responsible for attention and working memory, for example, is most distant from those sensory regions. The researchers also found that individual differences in these functional arrangements were heritable, meaning that they are partly influenced by genetic factors. At the same time, a large portion of this asymmetry in human brains could not be accounted for by genetic factors.
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