cocaine

Diagram of the location of the striatum in the brain; Leevanjackson and SUM1, Wikimedia Commons, CC BY-SA 4.0

How cocaine narrows the range of mouse behaviors to repetitive movement

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Hebrew University researchers have identified two neural pathways in the brains of mice that influence repetitive behavior in opposite directions following exposure to cocaine. The experiment provides a clue to the mechanism, but is not a treatment for addiction in humans.
Rare supporting cells in the inner ear of mice began to transform into sensory hair cells

In the long run, this is a dubious pleasure * Heavy use of cocaine damages the nervous mechanism responsible for pleasure

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