Why Neuroplasticity will never stop being fascinating!!
·— The idea that adult brains couldn't change was the dominant view in neuroscience for most of the 20th century. It was completely wrong. Overturning it changed not just neuroscience but medicine, education, therapy, and rehabilitation.
·— Every time you learn something, practice something, or think something repeatedly, you are physically altering the structure of your brain. The brain you have today is a physical record of your experience. That sentence should not be as surprising as it is.
·— Hebb's rule, neurons that fire together wire together, means that whatever you repeatedly do becomes increasingly automatic. Habits are neural grooves. Skills are physical structures. Fears are network patterns. The repetition is the biology.
·— London taxi drivers who memorize the entire street map of London have measurably larger hippocampi than non-taxi drivers. The job changed their brain. Their brain changed for the job. Activity produces structure.
·— Neuroplasticity is the engine under stroke rehabilitation, learning disability support, trauma recovery, addiction treatment, and therapeutic change of almost any kind. Understanding that the brain can reorganize is the foundation of the possibility of recovery.
·— Critical periods, windows of heightened plasticity especially in childhood, are real. But plasticity never fully stops. The adult brain requires more repetition and more intention than the child brain to produce structural change. It still produces it.
·— Sleep is when consolidation happens. The synaptic changes initiated during learning are stabilized during sleep. Neuroplasticity and sleep science are intimately related. You practice the skill. You sleep. The brain builds the structure.
·— The implication for education alone is enormous and we are not applying this knowledge nearly fast enough. We are teaching in ways designed for a static brain while knowing the brain is dynamic. The gap between what we know and what we do is one of the most significant failures in applied science.