The brain has its own functions and is divided into two hemispheres: the left hemisphere and the right hemisphere. Also, has its own way of processing information and each lobe has its specific roles. What happens when damage to the brain occurs? How does it rewire itself to process information or learn new activities?. Damage to each hemisphere of the brain has different effects on the way individuals learn since each hemisphere is in charge of different functions. Furthermore, the brain processes information differently according to a person’s learning style.
First, Let us explore on the functions of each hemisphere of the brain and how it works. The left hemisphere is associated with being logical. The right hemisphere of the brain is related with being emotional. The majority of the population is known to be right handed; therefore, the left side of the brain is controlling the right side of the body. The human brain is a very complex organ. The communication between these two hemispheres is accomplished by a series of electrical and chemical signals between neurons; the electrical process communicates through the movement from four ions: sodium, potassium, calcium, and chloride. On the other hand, the chemical communication process contains chemical messengers such as dopamine, serotonin, endorphins and acetylcholine, just to name a few (Wolfe, 2010). After reviewing some basic points in the transmission of communication between neurons, let us focus on learning and the brain.
More in depth, learning plays a role in brain cells growth. Dendrites sprout from the cell body of a neuron which increases in size and number in response to learned skills (Willis, 2008). Also, Willis (2008) mentions that learning the same task in different ways highly increases the pathways production in which neurons communicate and dendrites connect therefore retaining the information that is used in a constant basis. In the same way that material is being preserved due to continuous access to it, the material that is left untouched after learning it, disappears. “The process is called pruning because the brain pathways and connections that are used regularly are maintained and hard-wired, while others are eliminated” Willis (2008, p 2). This ability of the brain to adapt and reorganize its paths to newly learned skills is known as neuroplasticity. There are four lobes of the brain and have their specific roles. Frontal lobe is associated with reasoning, planning, parts of speech and movement (motor cortex). Parietal lobe is related with perception of stimuli related to touch, pressure, temperature and pain. Temporal lobe is linked to perception and recognition of auditory stimuli and memory. Occipital lobe is related to many aspects of vision, retrieved from http://faculty.washington.edu/chudler/lobe.html. Damage in any of these areas produces rewiring of the brain.
Injury to the right hemisphere of the brain leads to...