This study found increased subjective and neural responses to autobiographical memory cues under psilocybin. Greater activations were evident in visual and other sensory regions, which may explain why recollections were rated as more vivid and visual under psilocybin. Psychedelic drugs have a history of use in psychotherapy, linked to the hypothesis that they lower defences to facilitate access to salient emotions and memories. The results of this study provide initial support for this idea and a potential neurobiological mechanism is proposed: decreased medial prefrontal cortex activity leading to disinhibited limbic and sensory activity. We propose that psilocybin may be used in combination with cognitive strategies designed to reverse cognitive biases in depression – and we also suggest that it may be used in more classic dynamic therapy to assist the exploration and understanding of salient emotional themes.
Carhart-Harris RL, Leech R, Williams TM, Erritzoe D, Abbasi N, Bargiotas T, Hobden P, Sharp DJ, Evans J, Feilding A, Wise RG, Nutt DJ.
Br J Psychiatry. 2012 Jan 26. [Epub ahead of print
PMID: 22282432
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Carhart-Harris RL, Leech R, Williams TM, Erritzoe D, Abbasi N, Bargiotas T, Hobden P, Sharp DJ, Evans J, Feilding A, Wise RG, Nutt DJ.
Br J Psychiatry. 2012 Jan 26. [Epub ahead of print
PMID: 22282432
Cited by (Google Scholar)