Evidence map›Paper›PMID 31888300›Full record

ArticleInternational journal of environmental research and public health2019

From Egoism to Ecoism: Psychedelics Increase Nature Relatedness in a State-Mediated and Context-Dependent Manner.

Hannes Kettner, Sam Gandy, Eline C H M Haijen, Robin L Carhart-Harris

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
16.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

58 citing papers in PubMed, 154 citations in OpenAlex.

  1. Effects of psychedelic use on authoritarian attitudes revisited.Journal of psychopharmacology (Oxford, England) · 2026
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  8. Nature Relatedness as an Orientation in Moral Psychology.Integrative psychological & behavioral science · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Hannes KettnerCentre for Psychedelic Research, Department of Brain Sciences, Faculty of Medicine, Imperial College London, London W12 0NN, UK.ORCID 0000-0001-9482-0998
Sam GandyCentre for Psychedelic Research, Department of Brain Sciences, Faculty of Medicine, Imperial College London, London W12 0NN, UK.
Eline C H M HaijenCentre for Psychedelic Research, Department of Brain Sciences, Faculty of Medicine, Imperial College London, London W12 0NN, UK.
Robin L Carhart-HarrisCentre for Psychedelic Research, Department of Brain Sciences, Faculty of Medicine, Imperial College London, London W12 0NN, UK.
Imperial College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

(1) Background: There appears to be a growing disconnection between humans and their natural environments which has been linked to poor mental health and ecological destruction. Previous research suggests that individual levels of nature relatedness can be increased through the use of classical psychedelic compounds, although a causal link between psychedelic use and nature relatedness has not yet been established. (2) Methods: Using correlations and generalized linear mixed regression modelling, we investigated the association between psychedelic use and nature relatedness in a prospective online study. Individuals planning to use a psychedelic received questionnaires 1 week before (N = 654), plus one day, 2 weeks, 4 weeks, and 2 years after a psychedelic experience. (3) Results: The frequency of lifetime psychedelic use was positively correlated with nature relatedness at baseline. Nature relatedness was significantly increased 2 weeks, 4 weeks and 2 years after the psychedelic experience. This increase was positively correlated with concomitant increases in psychological well-being and was dependent on the extent of ego-dissolution and the perceived influence of natural surroundings during the acute psychedelic state. (4) Conclusions: The here presented evidence for a context- and state-dependent causal effect of psychedelic use on nature relatedness bears relevance for psychedelic treatment models in mental health and, in the face of the current ecological crisis, planetary health.

Indexed as

EgoEnvironmentHallucinogensNaturePsychotropic DrugsAdultDrug UsersFemaleHumansMaleProspective StudiesRegression AnalysisSurveys and QuestionnairesYoung AdultHallucinogensPsychotropic Drugsacute effectsego-dissolutionmental healthnature exposurenature relatednesspsychedelicsset and settingwell-being

Identifiers

PMID31888300
PMCPMC6949937
OpenAlexW2996233343

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.