Psychedelic Drugs Help Neurons Reach Out to Each Other

June 26, 2018

A new molecular medicine study from the University of California concludes that psychedelic drugs like LSD are — as you might have expected — mind-altering.

It may seem like the kind of study that would appear in the Journal of Obvious Science, but there’s a twist. According to the new data, psychedelics can be literally mind-altering, triggering physical changes to neurons and changing the very shape of the brain.

The research, which was published in the journal Cell, reveals that psychedelics can cause measurable changes to brain cells on the molecular level, making neurons more elastic and flexible. As a result, these neurons are able to reach out and connect with other adjacent neurons.

Considered against other research on the brain and behavior, the new study supports the increasingly persuasive idea that psychedelic drugs could be used to help fight anxiety, addiction, depression, and post-traumatic stress disorder.

For several decades now, doctors have proceeded from the theory that many mood disorders — especially depression — stem from imbalanced brain chemistry. But more recent studies have uncovered evidence that depression is associated with certain kinds of physical atrophy in the brain’s complex circuitry.

David E. Olson, the lead author of the new study, said in a statement that these brain changes also appear in cases of anxiety, addiction, and post-traumatic stress disorder.

“One of the hallmarks of depression is that the neurites in the prefrontal cortex — a key brain region that regulates emotion, mood, and anxiety — those neurites tend to shrivel up,” he said.

The new research shows that psychedelics have the ability to reverse this atrophy, opening new pathways and branching off new synapses. Psychedelics were also shown to increase both the density of dendritic spines and the density of synapses. Improved synaptic communication like this have been proven clinically effective in treating mood disorders.

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