23 Sep Hebrew University Study Discovers How Cocaine Hijacks the Brain’s Action-Selection Circuit
MedicalResearch.com Interview with:
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Dr. Ben Jerry Gonzales[/caption]
Dr. Ben Jerry Gonzales PhD
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Mr. Itay Shalom[/caption]
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Prof. Ami Citri.jpg[/caption]
Mr. Itay Shalom
Prof. Ami Citri PhD
Citri Laboratory, Hebrew University of Jerusalem
When mice were repeatedly exposed to high doses of cocaine in a new study from the Hebrew University of Jerusalem, their diverse behavioral repertoire progressively narrowed until a single action dominated: licking the floor and walls of the arena. By the fifth day of exposure, the animals spent approximately 62% of their time performing this one repetitive behavior. The research, published in Current Biology, identifies the striatal circuit mechanism driving this behavioral capture and demonstrates that manipulating the circuit can interrupt cocaine-induced rigidity within a second. According to the NIDA (National Institute on Drug Abuse), cocaine exerts its behavioral effects primarily through dopaminergic circuits in the basal ganglia, and understanding how those circuits translate drug exposure into compulsive, repetitive behavior is a central question in addiction neuroscience.