How the Insights of Neuroscience Can Aid Our Practice
By Paul Tingen
Until the 1980s, conventional wisdom in neuroscience held that the brain developed during childhood until it reached a fixed form that remained the same during adulthood. This belief in the brain’s static cellular circuitry gave rise to a very limited view of human consciousness, a “neurological nihilism,” in which consciousness was seen as no more than the byproduct of these fixed pathways. With the emergence of the computer, the analogy was made that the hardware of the brain determined and limited the software (our feelings and our thoughts).
However, due to pioneering research in the 1980s, most famously by Professor Michael Merzenich,2 this orthodoxy was turned on its head. Since then it has become widely accepted that the brain constantly rewires itself in response to changes in our feelings, thoughts, experiences, and the way we use our body. This phenomenon is referred to as the plasticity of the brain. In computer language, the software and the hardware inter-are: the software can shape the hardware, just as much as the other way around. Neuroscience today is governed by what is known as Hebb’s rule: “Cells that fire together wire together.” The brain gets less plastic as we grow older, but the capacity for rewiring remains. Continue reading