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Djurplågeri? Vad skulle Martin Luther King ha sagt? Forskare på Berkeleyuniversitetet stänger av och på mössens drömmar!

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Ja livet blir bara tuffare och tuffare. Robert Sanders skriver på Berkeleyuniverstetets hemsida: Researchers find neural switch that turns dreams on and off

t the flip of a switch, UC Berkeley neuroscientists can send a sleeping mouse into dreamland.
sleeping mouse

iStock photo

The researchers inserted an optogenetic switch into a group of nerve cells located in the ancient part of the brain called the medulla, allowing them to activate or inactivate the neurons with laser light.

When the neurons were activated, sleeping mice entered REM sleep within seconds. REM sleep, characterized by rapid eye movements, is the dream state in mammals accompanied by activation of the cortex and total paralysis of the skeletal muscles, presumably so that we don’t act out the dreams flashing through our mind.

Inactivating the neurons reduced or even eliminated a mouse’s ability to enter REM sleep.

Man får vara glad att man inte är mus med andra ord. Men samtidigt en mycket intressant utveckling som kan komma att lära oss mycket om vår egen hjärna.

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