Imperial College London

Dr Robin Carhart-Harris

Faculty of MedicineDepartment of Medicine

Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 7992r.carhart-harris

 
 
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Assistant

 

Miss Bruna Cunha +44 (0)20 7594 7992

 
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Location

 

Burlington DanesHammersmith Campus

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Summary

 

Publications

Publication Type
Year
to

81 results found

Scott G, Carhart-Harris R, Psychedelics as a treatment for disorders of consciousness, Neuroscience of Consciousness, ISSN: 2057-2107

JOURNAL ARTICLE

Erritzoe D, Smith J, Fisher PM, Carhart-Harris R, Frokjaer VG, Knudsen GMet al., 2019, Recreational use of psychedelics is associated with elevated personality trait openness: Exploration of associations with brain serotonin markers., J Psychopharmacol

BACKGROUND:: Recent studies have suggested therapeutic benefits of psychedelics for a variety of mental health conditions. The understanding of how single psychedelic administrations can induce long-lasting effects are, in large, still lacking. However, recent studies in both healthy and clinical populations suggest a role for personality changes. AIM:: To test support for some of these plausible mechanisms we evaluated (cross-sectional) associations between recreational use of psychedelics and 3,4-methylene-dioxymethamphetamine (MDMA) and (a) personality measures and (b) key markers of cerebral serotonergic signalling (serotonin transporter and serotonin-2A-receptor binding). METHODS:: In 10 psychedelic-preferring recreational users, 14 MDMA-preferring users and 21 non-using controls, personality was assessed using the 'big five' instrument Revised NEO Personality Inventory (NEO-PI-R). Frontal serotonin transporter and serotonin-2A-receptor binding potentials were quantified using [11C]DASB and [18F]altanserin positron emission tomography, respectively. RESULTS:: Of the five NEO-PI-R traits, only openness to experience scores differed between the three groups; psychedelic-preferring recreational users showing higher openness to experience scores when compared with both MDMA-preferring users and controls. Openness to experience scores were positively associated with lifetime number of psychedelic exposures, and among all MDMA-preferring user/psychedelic-preferring recreational user individuals, frontal serotonin transporter binding - but not frontal serotonin-2A-receptor binding - was positively associated with openness to experience. CONCLUSION:: Our findings from this cross-sectional study support increasing evidence of a positive association between psychedelic experiences and openness to experience, and (a) expands this to the context of 'recreational' psychedelics use, and (b) links serotonergic neurotransmission to openness to experience. A modulation of perso

JOURNAL ARTICLE

Haijen ECHM, Kaelen M, Roseman L, Timmermann C, Kettner H, Russ S, Nutt D, Daws RE, Hampshire ADG, Lorenz R, Carhart-Harris RLet al., 2018, Predicting Responses to Psychedelics: A Prospective Study, FRONTIERS IN PHARMACOLOGY, Vol: 9, ISSN: 1663-9812

JOURNAL ARTICLE

Timmermann C, Spriggs MJ, Kaelen M, Leech R, Nutt DJ, Moran RJ, Carhart-Harris RL, Muthukumaraswamy SDet al., 2018, LSD modulates effective connectivity and neural adaptation mechanisms in an auditory oddball paradigm, NEUROPHARMACOLOGY, Vol: 142, Pages: 251-262, ISSN: 0028-3908

JOURNAL ARTICLE

Erritzoe D, Roseman L, Nour MM, MacLean K, Kaelen M, Nutt DJ, Carhart-Harris RLet al., 2018, Effects of psilocybin therapy on personality structure, ACTA PSYCHIATRICA SCANDINAVICA, Vol: 138, Pages: 368-378, ISSN: 0001-690X

JOURNAL ARTICLE

Carhart-Harris RL, 2018, The entropic brain - revisited, NEUROPHARMACOLOGY, Vol: 142, Pages: 167-178, ISSN: 0028-3908

JOURNAL ARTICLE

Roseman L, Demetriou L, Wall MB, Nutt DJ, Carhart-Harris RLet al., 2018, Increased amygdala responses to emotional faces after psilocybin for treatment-resistant depression, NEUROPHARMACOLOGY, Vol: 142, Pages: 263-269, ISSN: 0028-3908

JOURNAL ARTICLE

Lyons T, Carhart-Harris RL, 2018, More realistic forecasting of future life events after psilocybin for treatment-resistant depression, Frontiers in Psychology, Vol: 9, ISSN: 1664-1078

Background: Evidence suggests that classical psychedelics can promote enduring changes in personality, attitudes and optimism, as well as improvements in mental health outcomes.Aim: To investigate the effects of a composite intervention, involving psilocybin, on pessimism biases in patients with treatment-resistant depression (TRD).Methods: Patients with TRD (n = 15) and matched, untreated non-depressed controls (n = 15) performed the Prediction Of Future Life Events (POFLE) task. The POFLE task requires participants to predict the likelihood of certain life events occurring within a 30-day period, after which the actual rate of event occurrence is reported; this gives an index of potential pessimism versus optimism bias. Psilocybin was administered in two oral dosing sessions (10 and 25 mg) one week apart. Main outcome measures were collected at baseline and one week after the second dosing session.Results: Patients showed a significant pessimism bias at baseline [t(14) = -3.260, p = 0.006; 95% CI (-0.16, -0.03), g = 1.1] which was related to the severity of their depressive symptoms (rs = -0.55, p = 0.017). One week after psilocybin treatment, this bias was significantly decreased [t(14) = -2.714, p = 0.017; 95% CI (-0.21, -0.02), g = 0.7] and depressive symptoms were greatly improved [t(14) = 7.900, p < 0.001; 95% CI (16.17, 28.23), g = 1.9]; moreover, the magnitude of change in both variables was significantly correlated (r = -0.57, p = 0.014). Importantly, post treatment, patients became significantly more accurate at predicting the occurrence of future life events [t(14) = 1.857, p = 0.042; 95% CI (-0.01, 0.12), g = 0.6] whereas no such change was observed in the control subjects.Conclusion: These findings suggest that psilocybin with psychological support might correct pessimism biases in TRD, enabling a more positive and accurate outlook.

JOURNAL ARTICLE

Deco G, Cruzat J, Cabral J, Knudsen GM, Carhart-Harris RL, Whybrow PC, Logothetis NK, Kringelbach MLet al., 2018, Whole-Brain Multimodal Neuroimaging Model Using Serotonin Receptor Maps Explains Non-linear Functional Effects of LSD, CURRENT BIOLOGY, Vol: 28, Pages: 3065-+, ISSN: 0960-9822

JOURNAL ARTICLE

Timmermann C, Roseman L, Williams L, Erritzoe D, Martial C, Cassol H, Laureys S, Nutt D, Carhart-Harris Ret al., 2018, DMT Models the Near-Death Experience, FRONTIERS IN PSYCHOLOGY, Vol: 9, ISSN: 1664-1078

JOURNAL ARTICLE

Lyons T, Carhart-Harris RL, 2018, Increased nature relatedness and decreased authoritarian political views after psilocybin for treatment-resistant depression, JOURNAL OF PSYCHOPHARMACOLOGY, Vol: 32, Pages: 811-819, ISSN: 0269-8811

JOURNAL ARTICLE

Carhart-Harris RL, Roseman L, Haijen E, Erritzoe D, Watts R, Branchi I, Kaelen Met al., 2018, Psychedelics and the essential importance of context, JOURNAL OF PSYCHOPHARMACOLOGY, Vol: 32, Pages: 725-731, ISSN: 0269-8811

JOURNAL ARTICLE

Gabay AS, Carhart-Harris RL, Mazibuko N, Kempton MJ, Morrison PD, Nutt DJ, Mehta MAet al., 2018, Psilocybin and MDMA reduce costly punishment in the Ultimatum Game, SCIENTIFIC REPORTS, Vol: 8, ISSN: 2045-2322

JOURNAL ARTICLE

Kaelen M, Giribaldi B, Raine J, Evans L, Timmermann C, Rodriguez N, Roseman L, Feilding A, Nutt D, Carhart-Harris Ret al., 2018, The hidden therapist: evidence for a central role of music in psychedelic therapy (vol 235, pg 505, 2018), PSYCHOPHARMACOLOGY, Vol: 235, Pages: 1623-1623, ISSN: 0033-3158

JOURNAL ARTICLE

Carrillo F, Sigman M, Fernandez Slezak D, Ashton P, Fitzgerald L, Stroud J, Nutt DJ, Carhart-Harris RLet al., 2018, Natural speech algorithm applied to baseline interview data can predict which patients will respond to psilocybin for treatment-resistant depression, JOURNAL OF AFFECTIVE DISORDERS, Vol: 230, Pages: 84-86, ISSN: 0165-0327

JOURNAL ARTICLE

Stroud JB, Freeman TP, Leech R, Hindocha C, Lawn W, Nutt DJ, Curran HV, Carhart-Harris RLet al., 2018, Psilocybin with psychological support improves emotional face recognition in treatment-resistant depression, PSYCHOPHARMACOLOGY, Vol: 235, Pages: 459-466, ISSN: 0033-3158

JOURNAL ARTICLE

Carhart-Harris RL, Bolstridge M, Day CMJ, Rucker J, Watts R, Erritzoe DE, Kaelen M, Giribaldi B, Bloomfield M, Pilling S, Rickard JA, Forbes B, Feilding A, Taylor D, Curran HV, Nutt DJet al., 2018, Psilocybin with psychological support for treatment-resistant depression: six-month follow-up, PSYCHOPHARMACOLOGY, Vol: 235, Pages: 399-408, ISSN: 0033-3158

JOURNAL ARTICLE

Carhart-Harris RL, Erritzoe D, Haijen E, Kaelen M, Watts Ret al., 2018, Psychedelics and connectedness, PSYCHOPHARMACOLOGY, Vol: 235, Pages: 547-550, ISSN: 0033-3158

JOURNAL ARTICLE

Kaelen M, Giribaldi B, Raine J, Evans L, Timmerman C, Rodriguez N, Roseman L, Feilding A, Nutt D, Carhart-Harris Ret al., 2018, The hidden therapist: evidence for a central role of music in psychedelic therapy, PSYCHOPHARMACOLOGY, Vol: 235, Pages: 505-519, ISSN: 0033-3158

JOURNAL ARTICLE

Roseman L, Nutt DJ, Carhart-Harris RL, 2018, Quality of Acute Psychedelic Experience Predicts Therapeutic Efficacy of Psilocybin for Treatment-Resistant Depression, FRONTIERS IN PHARMACOLOGY, Vol: 8, ISSN: 1663-9812

JOURNAL ARTICLE

Schartner MM, Carhart-Harris RL, Barrett AB, Seth AK, Muthukumaraswamy SDet al., 2017, Increased spontaneous MEG signal diversity for psychoactive doses of ketamine, LSD and psilocybin, Scientific Reports, Vol: 7

JOURNAL ARTICLE

Carhart-Harris RL, Roseman L, Bolstridge M, Demetriou L, Pannekoek JN, Wall MB, Tanner M, Kaelen M, McGonigle J, Murphy K, Leech R, Curran HV, Nutt DJet al., 2017, Psilocybin for treatment-resistant depression: fMRI-measured brain mechanisms, SCIENTIFIC REPORTS, Vol: 7, ISSN: 2045-2322

JOURNAL ARTICLE

Walpola IC, Nest T, Roseman L, Erritzoe D, Feilding A, Nutt DJ, Carhart-Harris RLet al., 2017, Altered Insula Connectivity under MDMA, NEUROPSYCHOPHARMACOLOGY, Vol: 42, Pages: 2152-2162, ISSN: 0893-133X

JOURNAL ARTICLE

Carhart-Harris RL, Goodwin GM, 2017, The Therapeutic Potential of Psychedelic Drugs: Past, Present, and Future, Neuropsychopharmacology, Vol: 42, Pages: 2105-2113, ISSN: 0893-133X

JOURNAL ARTICLE

Watts R, Day C, Krzanowski J, Nutt D, Carhart-Harris Ret al., 2017, Patients' Accounts of Increased "Connectedness" and "Acceptance" After Psilocybin for Treatment-Resistant Depression, JOURNAL OF HUMANISTIC PSYCHOLOGY, Vol: 57, Pages: 520-564, ISSN: 0022-1678

JOURNAL ARTICLE

Carhart-Harris RL, Nutt DJ, 2017, Serotonin and brain function: a tale of two receptors, JOURNAL OF PSYCHOPHARMACOLOGY, Vol: 31, Pages: 1091-1120, ISSN: 0269-8811

JOURNAL ARTICLE

Carhart-Harris R, Lawton G, 2017, Trip advisor, NEW SCIENTIST, Vol: 235, Pages: 42-43, ISSN: 0262-4079

JOURNAL ARTICLE

Erritzoe D, Nutt DJ, Carhart-Harris R, 2017, Concerns regarding conclusions made about LSD-treatments, HISTORY OF PSYCHIATRY, Vol: 28, Pages: 257-258, ISSN: 0957-154X

JOURNAL ARTICLE

Nour MM, Carhart-Harris RL, 2017, Psychedelics and the science of self-experience, BRITISH JOURNAL OF PSYCHIATRY, Vol: 210, Pages: 177-179, ISSN: 0007-1250

JOURNAL ARTICLE

Nour MM, Evans L, Carhart-Harris RL, 2017, Psychedelics, Personality and Political Perspectives, JOURNAL OF PSYCHOACTIVE DRUGS, Vol: 49, Pages: 182-191, ISSN: 0279-1072

JOURNAL ARTICLE

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