Interhemispheric competition is another important factor in this regard. The competitive relationship between the two hemispheres (Kinsbourne, 1993) also explains recovery of functions to certain extent. However, there could also be cases of excessive growth of neurons or excessive release of neurotransmitters. This could lead to spasticity.

It might be interesting for the students of behavioural sciences to understand the factors that contribute to this type of recovery. Although each case is unique in itself, certain factors have imperative influence on the recovery process. Some of them are described below.

Age at the time of brain injury - The effect of brain injury is reportedly high in children and older adults as compared to those in the middle age group. Children have a developing system and severity of the damage to it might not be visible at the early stages of development. However, it might appear at an older stage in terms of developmental delay and unexpected deficits. In the case of older adults, compensation of the acquired deficit becomes more difficult. For the psychological viewpoint, preinjury intelligence and educational levels are major predictors of degree of function recovery (Brooks & McKinlay, 1987). The diverse cognitive requirements coupled with educational activities might increase neural connectivity. For instance, level of education and amount of dendritic branching in Wernicke's area are positively related (Jacobs, Schall, & Scheibel, 1993).