In a study at the Imperial College in London,*5 researchers discovered that a single dose of LSD “produced robust psychological effects; including heightened mood but also high scores on the PSI, an index of psychosis-like symptoms. Increased optimism and trait openness were observed 2 weeks after LSD and there were no changes in delusional thinking.” They concluded that, although psychedelics like LSD produce disturbing psychosis-like symptoms during the period of intoxication, in the long term they “leave a residue of ‘loosened cognition’…that is conducive to improved psychological
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Let loose
