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M. Kaelen

LSD enhances the emotional response to music

August 11, 2015 / LSD, Papers, Psychology, Publications / By / , , , , , ,

Abstract

RATIONALE:

There is renewed interest in the therapeutic potential of psychedelic drugs such as lysergic acid diethylamide (LSD). LSD was used extensively in the 1950s and 1960s as an adjunct in psychotherapy, reportedly enhancing emotionality. Music is an effective tool to evoke and study emotion and is considered an important element in psychedelic-assisted psychotherapy; however, the hypothesis that psychedelics enhance the emotional response to music has yet to be investigated in a modern placebo-controlled study.

OBJECTIVES:

The present study sought to test the hypothesis that music-evoked emotions are enhanced under LSD.

METHODS:

Ten healthy volunteers listened to five different tracks of instrumental music during each of two study days, a placebo day followed by an LSD day, separated by 5-7 days. Subjective ratings were completed after each music track and included a visual analogue scale (VAS) and the nine-item Geneva Emotional Music Scale (GEMS-9).

RESULTS:

Results demonstrated that the emotional response to music is enhanced by LSD, especially the emotions “wonder”, “transcendence”, “power” and “tenderness”.

CONCLUSIONS:

These findings reinforce the long-held assumption that psychedelics enhance music-evoked emotion, and provide tentative and indirect support for the notion that this effect can be harnessed in the context of psychedelic-assisted psychotherapy. Further research is required to test this link directly.

Kaelen, M., Barrett, F. S., Roseman, L., Lorenz, R., Family, N., Bolstridge, M., … & Carhart-Harris, R. L. (2015). LSD enhances the emotional response to music. Psychopharmacology, 1-8. https://dx.doi.org/10.1007/s00213-015-4014-y
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LSD enhances suggestibility in healthy volunteers

September 23, 2014 / LSD, Papers, Psychology, Publications / By / , , , , ,

Abstract

Rationale
Lysergic acid diethylamide (LSD) has a history of use as a psychotherapeutic aid in the treatment of mood disorders and addiction, and it was also explored as an enhancer of mind control.

Objectives
The present study sought to test the effect of LSD on suggestibility in a modern research study.

Methods
Ten healthy volunteers were administered with intravenous (i.v.) LSD (40–80 μg) in a within-subject placebo-controlled design. Suggestibility and cued mental imagery were assessed using the Creative Imagination Scale (CIS) and a mental imagery test (MIT). CIS and MIT items were split into two versions (A and B), balanced for ‘efficacy’ (i.e. A≈B) and counterbalanced across conditions (i.e. 50 % completed version ‘A’ under LSD). The MIT and CIS were issued 110 and 140 min, respectively, post-infusion, corresponding with the peak drug effects.

Results
Volunteers gave significantly higher ratings for the CIS (p = 0.018), but not the MIT (p = 0.11), after LSD than placebo. The magnitude of suggestibility enhancement under LSD was positively correlated with trait conscientiousness measured at baseline (p = 0.0005).

Conclusions
These results imply that the influence of suggestion is enhanced by LSD. Enhanced suggestibility under LSD may have implications for its use as an adjunct to psychotherapy, where suggestibility plays a major role. That cued imagery was unaffected by LSD implies that suggestions must be of a sufficient duration and level of detail to be enhanced by the drug. The results also imply that individuals with high trait conscientiousness are especially sensitive to the suggestibility-enhancing effects of LSD.

Carhart-Harris, R. L., Kaelen, M., Whalley, M. G., Bolstridge, M., Feilding, A. & Nutt, D.J. (2014). LSD enhances suggestibility in healthy volunteers. Psychopharmacology. http://dx.doi.org/10.1007/s00213-014-3714-z
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