Salvinorin-A induces intense dissociative effects, blocking external sensory perception and modulating interoception and sense of body ownership in humans

Ana Elda Maqueda, Marta Valle, Peter H. Addy, Rosa Maria Antonijoan, Montserrat Puntes, Jimena Coimbra, Maria Rosa Ballester, Maite Garrido, Mireia González, Judit Claramunt, Steven Barker, Matthew W Johnson, Roland R Griffiths, Jordi Riba

Research output: Contribution to journalArticle

Abstract

Background: Salvinorin-A is a terpene with agonist properties at the kappa-opioid receptor, the binding site of endogenous dynorphins. Salvinorin-A is found in Salvia divinorum, a psychoactive plant traditionally used by the Mazatec people of Oaxaca, Mexico, for medicinal and spiritual purposes. Previous studies with the plant and salvinorin-A have reported psychedeliclike changes in perception, but also unusual changes in body awareness and detachment from external reality. Here we comprehensively studied the profiles of subjective effects of increasing doses of salvinorin-A in healthy volunteers, with a special emphasis on interoception. Methods: A placebo and three increasing doses of vaporized salvinorin-A (0.25, 0.50, and 1 mg) were administered to eight healthy volunteers with previous experience in the use of psychedelics. Drug effects were assessed using a battery of questionnaires that included, among others, the Hallucinogen Rating Scale, the Altered States of Consciousness, and a new instrument that evaluates different aspects of body awareness: the Multidimensional Assessment for Interoceptive Awareness. Results: Salvinorin-A led to a disconnection from external reality, induced elaborate visions and auditory phenomena, and modified interoception. The lower doses increased somatic sensations, but the highest dose led to a sense of a complete loss of contact with the body. Conclusions: Salvinorin-A induced intense psychotropic effects characterized by a dose-dependent gating of external audiovisual information and an inverted-U dose-response effect on body awareness. These results suggest a prominent role for the kappa opioid receptor in the regulation of sensory perception, interoception, and the sense of body ownership in humans.

Original languageEnglish (US)
Pages (from-to)1-14
Number of pages14
JournalInternational Journal of Neuropsychopharmacology
Volume18
Issue number12
DOIs
StatePublished - 2015

Fingerprint

salvinorin A
Ownership
Hallucinogens
kappa Opioid Receptor
Healthy Volunteers
Salvia
Dynorphins
Terpenes
Mexico
Interoception
Consciousness

Keywords

  • Body ownership
  • Dissociative effects
  • Dynorphins
  • Human
  • Interoception
  • Kappa opioid receptor
  • Salvia divinorum. salvinorin-A

ASJC Scopus subject areas

  • Pharmacology (medical)
  • Pharmacology
  • Psychiatry and Mental health

Cite this

Salvinorin-A induces intense dissociative effects, blocking external sensory perception and modulating interoception and sense of body ownership in humans. / Maqueda, Ana Elda; Valle, Marta; Addy, Peter H.; Antonijoan, Rosa Maria; Puntes, Montserrat; Coimbra, Jimena; Ballester, Maria Rosa; Garrido, Maite; González, Mireia; Claramunt, Judit; Barker, Steven; Johnson, Matthew W; Griffiths, Roland R; Riba, Jordi.

In: International Journal of Neuropsychopharmacology, Vol. 18, No. 12, 2015, p. 1-14.

Research output: Contribution to journalArticle

Maqueda, AE, Valle, M, Addy, PH, Antonijoan, RM, Puntes, M, Coimbra, J, Ballester, MR, Garrido, M, González, M, Claramunt, J, Barker, S, Johnson, MW, Griffiths, RR & Riba, J 2015, 'Salvinorin-A induces intense dissociative effects, blocking external sensory perception and modulating interoception and sense of body ownership in humans', International Journal of Neuropsychopharmacology, vol. 18, no. 12, pp. 1-14. https://doi.org/10.1093/ijnp/pyv065
Maqueda, Ana Elda ; Valle, Marta ; Addy, Peter H. ; Antonijoan, Rosa Maria ; Puntes, Montserrat ; Coimbra, Jimena ; Ballester, Maria Rosa ; Garrido, Maite ; González, Mireia ; Claramunt, Judit ; Barker, Steven ; Johnson, Matthew W ; Griffiths, Roland R ; Riba, Jordi. / Salvinorin-A induces intense dissociative effects, blocking external sensory perception and modulating interoception and sense of body ownership in humans. In: International Journal of Neuropsychopharmacology. 2015 ; Vol. 18, No. 12. pp. 1-14.
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abstract = "Background: Salvinorin-A is a terpene with agonist properties at the kappa-opioid receptor, the binding site of endogenous dynorphins. Salvinorin-A is found in Salvia divinorum, a psychoactive plant traditionally used by the Mazatec people of Oaxaca, Mexico, for medicinal and spiritual purposes. Previous studies with the plant and salvinorin-A have reported psychedeliclike changes in perception, but also unusual changes in body awareness and detachment from external reality. Here we comprehensively studied the profiles of subjective effects of increasing doses of salvinorin-A in healthy volunteers, with a special emphasis on interoception. Methods: A placebo and three increasing doses of vaporized salvinorin-A (0.25, 0.50, and 1 mg) were administered to eight healthy volunteers with previous experience in the use of psychedelics. Drug effects were assessed using a battery of questionnaires that included, among others, the Hallucinogen Rating Scale, the Altered States of Consciousness, and a new instrument that evaluates different aspects of body awareness: the Multidimensional Assessment for Interoceptive Awareness. Results: Salvinorin-A led to a disconnection from external reality, induced elaborate visions and auditory phenomena, and modified interoception. The lower doses increased somatic sensations, but the highest dose led to a sense of a complete loss of contact with the body. Conclusions: Salvinorin-A induced intense psychotropic effects characterized by a dose-dependent gating of external audiovisual information and an inverted-U dose-response effect on body awareness. These results suggest a prominent role for the kappa opioid receptor in the regulation of sensory perception, interoception, and the sense of body ownership in humans.",
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T1 - Salvinorin-A induces intense dissociative effects, blocking external sensory perception and modulating interoception and sense of body ownership in humans

AU - Maqueda, Ana Elda

AU - Valle, Marta

AU - Addy, Peter H.

AU - Antonijoan, Rosa Maria

AU - Puntes, Montserrat

AU - Coimbra, Jimena

AU - Ballester, Maria Rosa

AU - Garrido, Maite

AU - González, Mireia

AU - Claramunt, Judit

AU - Barker, Steven

AU - Johnson, Matthew W

AU - Griffiths, Roland R

AU - Riba, Jordi

PY - 2015

Y1 - 2015

N2 - Background: Salvinorin-A is a terpene with agonist properties at the kappa-opioid receptor, the binding site of endogenous dynorphins. Salvinorin-A is found in Salvia divinorum, a psychoactive plant traditionally used by the Mazatec people of Oaxaca, Mexico, for medicinal and spiritual purposes. Previous studies with the plant and salvinorin-A have reported psychedeliclike changes in perception, but also unusual changes in body awareness and detachment from external reality. Here we comprehensively studied the profiles of subjective effects of increasing doses of salvinorin-A in healthy volunteers, with a special emphasis on interoception. Methods: A placebo and three increasing doses of vaporized salvinorin-A (0.25, 0.50, and 1 mg) were administered to eight healthy volunteers with previous experience in the use of psychedelics. Drug effects were assessed using a battery of questionnaires that included, among others, the Hallucinogen Rating Scale, the Altered States of Consciousness, and a new instrument that evaluates different aspects of body awareness: the Multidimensional Assessment for Interoceptive Awareness. Results: Salvinorin-A led to a disconnection from external reality, induced elaborate visions and auditory phenomena, and modified interoception. The lower doses increased somatic sensations, but the highest dose led to a sense of a complete loss of contact with the body. Conclusions: Salvinorin-A induced intense psychotropic effects characterized by a dose-dependent gating of external audiovisual information and an inverted-U dose-response effect on body awareness. These results suggest a prominent role for the kappa opioid receptor in the regulation of sensory perception, interoception, and the sense of body ownership in humans.

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KW - Salvia divinorum. salvinorin-A

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