The brain is essentially divided into two halves, hemispheres. Namely, the left and the right hemispheric cortices of the brain. While many functions are shared across hemispheres, several functions principally identify to one hemisphere. Generally, the left hemisphere is recognised as the logical and linear “brain” while the right is the artistic and creative half of the “brain”.
Everyone tends to have a hemisphere that is stronger than the other, hence people tend to be either more creative or logical. However in assessing brain function sometimes we find that one hemisphere is less active than the other. This condition is referred to as a functional hemisphericity.
Assessing a functional hemisphericity.
A functional hemisphericity may contribute to problems with some functions connected with that hemisphere. A brain this is underperforming can produce ‘soft neurological signs’. Such as slight palsy, minor tic, altered motor tone, changed sensory awareness or neurological fatigue. Collectively a pool of symptoms could suggest a level of hemispheric dysfunction. In contrast, a stroke or tumor may present with clinically distinct “hard signs”.
A guide to assessing a functional hemisphericity is to actively observe body signs and symptoms. Such that, each hemisphere will specifically orchestrate effective (power, reflex or autonomic tone) or effective changes. Changes in these can give clues to the level of hemisphericity.
How is a hemisphericity caused?
The brain is a network of activity. Different areas are connected together to perform different functions. Loss of input from one area can lead to a problem in another area. This loss of input can be due to a breakdown of nerve function. Maybe nerve damage from diabetes, immobility, blindness or trauma.
Therapy for hemisphericity.
Therapy for hemisphericity always requires a personalised program of care designed by the healthcare team. The team must understand the nature of your neurology.
Common therapy employed may include;
- Physical therapy,
- Cognitive exercises,
- Visual or auditory stimulation or
- Vestibular and balance training. The appropriate program of care will depend upon your condition, your age and level of brain plasticity at the time.
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