You could double the number of synaptic connections in a very simple neurocircuit as a result of experience and learning. The reason for that was that long-term memory alters the expression of genes in nerve cells, which is the cause of the growth of new synaptic connections. When you see that at the cellular level, you realize that the brain can change because of experience. It gives you a different feeling about how nature and nurture interact. They are not separate processes.

Eric R. Kandel, Nobel Prize-winning neuroscientist.

A Quest to Understand How Memory Works.

(via storyseldomtold)

The fact that the brain changes because of experience, as I’ve mentioned in several of my previous posts on the subject, to me, confirms that our study of chemical imbalances to prove the prevalence of psychological disorders is focusing on the symptoms rather than the root cause. But it’s easier to be a victim to chemicals than a master of your thoughts. 

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