Psychedelic therapy
Even some talking therapies could fit with
the neuroplasticity explanation. Cognitive
behavioural therapy, for instance, explicitly
encourages people to learn new patterns of
behaviour in response to stressful situations
and to unlearn harmful ones. This would
explain why medications and talking therapies
often work best together: the antidepressants
make the brain more neuroplastic, while the
person learns more helpful thought patterns.
Psychedelic drugs, such as psilocybin from
magic mushrooms, have shown some signs of
success against depression in small, early-stage
trials in humans – and they seem to trigger
neuroplasticity, too, at least in animals. They
also directly stimulate one subtype of serotonin
receptor, as well as causing a rise in dopamine
levels. So these drugs seem to have multiple
effects and it is unclear which one is most
important. That doesn’t concern everyone.
Depression can’t be
seen on a brain scan
as was once thought
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