Kalientesytle

Surprising Fly By

For the first time ever, scientists have imaged the brain on LSD

In a world-first, scientists in the UK have imaged the effects of LSD on the human brain, and we now have an unprecedented view into the effects of one of the most powerful drugs ever created.

These images not only reveal that the potent hallucinogen activates regions all over the brain - and not just the visual cortex, as previously suspected - but it shows how regions that are usually separated start signaling to each other in response to the drug, to produce some intense effects.

As you can see in the images above and below, the effects of the drug ran all over the brain, and connectivity between regions was altered dramatically. The team used three different brain imaging techniques - arterial spin labelling, resting state MRI, and magnetoencephalography - to figure out what was going on.

They found that the participants’ visual processing was no longer restricted to the visual cortex at the base of the brain - all kinds of regions contributed to what the participants ‘saw’, which is pretty odd, seeing as their eyes were closed.

Not only that, but regions that usually don’t signal to each other suddenly started connecting, while regions that usually form a network became segregated, Ian Sample reports for The Guardian.

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