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I'm no expert, but this article seems misleading in several ways. >Myth number one is that specific parts of the human brain have specific psychological jobs.
by devindotcom 5y ago
I'm no expert, but this article seems misleading in several ways.
>Myth number one is that specific parts of the human brain have specific psychological jobs.
Your brain is both very compartmentalized and generalized. The neocortex contains many discrete regions with very specialized neural architectures for specific tasks. The visual cortex and Broca's Area have specific and very different psychological jobs. No one's Broca's Area does edge detection on signals coming from the optic nerve, and no one's V1 is contributing to their manner of speech. The cerebellum does one thing, the olivary complexes another, etc.
Of course there is a huge amount of uncertainty as to what various areas do and how they communicate - the brain is an amazingly plastic network and as the author points out it can reorganize and repurpose quickly, but there are certainly specialized areas like "puzzle pieces," just with somewhat fuzzy borders to them. The "triune brain" is
>Myth number two is that your brain reacts to events in the world... All your neurons are firing at various rates all the time.
I don't understand this. Of course your brain reacts to events in the world. That is what it is for, to interpret events in the world and issue instructions to respond to them. It is true that for example the reading portions of your brain are not "off" until you open a book, but it's clear that neuronal activity and blood flow increases to these areas when a person is engaged in the corresponding activity. So it is not a matter of off and on, but rather idle and under load.
Prediction is part of this process as well, but it doesn't mean that the brain does not respond in a macro or micro way to stimuli.
>The third myth is that there’s a clear dividing line between diseases of the body, such as cardiovascular disease, and diseases of the mind, such as depression.
I can see how this might be confusing, but I don't think many people take Cartesian Dualism this literally. Maybe I'm wrong. People I think generally understand that the brain is an organ, part of the body and different from individual to individual.
But what you treat with a serotonin reuptake inhibitor or antipsychotic is different from what you treat with therapy. One is a treatment for the brain, the organ, the other is a treatment for the mind, the abstract concept we have for the sum of our learned experiences. These are certainly different things.
I would not go blindly repeating the things this article claims. It is mischaracterizing both the myths and the truth, in my (amateur) opinion.
- jonnycomputer 5y agoOf course the brain responds to stimuli. I really don't know what the author is talking about. Neurons work on a rate code, and so of course they are firing all the time--at a baseline rate.