Suggestibility intensification is defined as an increased tendency to accept and act on the ideas or attitudes of others. A common example of suggestibility enhancement in action would be a trip sitter deliberately making a person believe a false statement without question simply by telling it to them as true, even if the statement would usually be easily recognizable as impossible or absurd. If this is successfully accomplished, it can potentially result in the experience of relevant accompanying hallucinations and delusions which further solidify the belief which has been suggested to them.
Suggestibility intensification most commonly occurs under the influence of heavy dosages of hallucinogenic compounds, such as psychedelics, dissociatives, deliriants, and cannabinoids. This holds particularly true for users who are inexperienced or currently undergoing delusions and memory suppression. It's worth noting that this effect has been studied extensively by the scientific literature and has a relatively large body of data confirming its presence across multiple hallucinogens. These include LSD, mescaline, psilocybin, cannabis, ketamine, and nitrous oxide. However, anecdotal reports suggest that it may also occur to a lesser extent under the influence of GABAergic depressants such as alcohol and benzodiazepines.
Compounds within our psychoactive substance index which may cause this effect include:
Annectdotal reports which describe this effect with our experience index include:
- Sjoberg, B. M.; Hollister, L. E. (1965). "The effects of psychotomimetic drugs on primary suggestibility". Psychopharmacologia. 8 (4): 251–262. doi:10.1007/BF00407857. ISSN 0033-3158.
- Carhart-Harris, R. L.; Kaelen, M.; Whalley, M. G.; Bolstridge, M.; Feilding, A.; Nutt, D. J. (2014). "LSD enhances suggestibility in healthy volunteers". Psychopharmacology. 232 (4): 785–794. doi:10.1007/s00213-014-3714-z. ISSN 0033-3158.
- Kelly, Sean F.; Fisher, Seymour; Kelly, Reid J. (1978). "Effects of cannabis intoxication on primary suggestibility". Psychopharmacology. 56 (2): 217–219. doi:10.1007/BF00431853. ISSN 0033-3158.
- Cheong, Soon Ho; Lee, Kun Moo; Lim, Se Hun; Cho, Kwang Rae; Kim, Myoung Hun; Ko, Myoung Jin; Shim, Joo Cheol; Oh, Min Kyung; Kim, Yong Han; Lee, Sang Eun (2011). "The Effect of Suggestion on Unpleasant Dreams Induced by Ketamine Administration". Anesthesia & Analgesia. 112 (5): 1082–1085. doi:10.1213/ANE.0b013e31820eeb0e. ISSN 0003-2999.
- Whalley, M. G.; Brooks, G. B. (2008). "Enhancement of suggestibility and imaginative ability with nitrous oxide". Psychopharmacology. 203 (4): 745–752. doi:10.1007/s00213-008-1424-0. ISSN 0033-3158.