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Direct Current Stimulation Essay

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Dr. Shailesh Kantak spoke about the benefits of using Transcranial Direct Current Stimulation (tDCS) to stimulate the brain to alter neurons and increase learning. Brain plasticity occurs in a clinical setting through challenge and dose, where the brain changes to adapt to learning. tDCS has been found, in a cheap and portable way, to be able to stimulate the human brain and temporarily change the functional output in the brain. Cathodal stimulation slows down the brain excitability and anodal increases the brain excitability. The greater the time of anodal stimulation of tDCS correlates to an increased time of excitability following stimulation, while a greater time of cathodal stimulation correlates with an increased time of reduced excitability. The results of studies …show more content…
Early studies about tDCS on stroke patients showed positive results with simple tasks, though later studies showed less success with more complex tasks. It was found that structural reserve and interhemispheric balance impacted how tDCS impacted stroke patients, as to improve, patients needed different forms of stimulation, anodal and cathodal, in different areas of the brain. Though there are many promising results, there is still a lot unknown about tDCS as well as many hindering factors to its use. Currently, tDCS is not approved by the FDA and as it still requires immense research, it is challenging to apply it to a clinical setting.
Kolb and Wishaw define brain plasticity as the brains chemical or physical change that allows it to adapt. For any animal to learn, its brain must reshape to some extent. A monkey trying to retrieve food from a small hole must learn how to move its hand and arm to allow it to retrieve the food. The change in its brain was visualized, which showed changes in the area responsible for the specific movement. For amputees, many receive

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