Evidence map›Paper›PMID 32957693›Full record

ArticleInternational journal of environmental research and public health2020

Proposing a Framework for the Restorative Effects of Nature through Conditioning: Conditioned Restoration Theory.

Lars Even Egner, Stefan Sütterlin, Giovanna Calogiuri

Abstract read
In one paragraph

Article in International journal of environmental research and public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

17 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  7. The Physical Activity Environment, Nature-Relatedness and Wellbeing.International journal of environmental research and public health · 2025
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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

3 authors.

Lars Even EgnerCitizens, Environment and Safety, Institute of Psychology, Norwegian University of Science and Technology, 7048 Trondheim, Norway.ORCID 0000-0002-0976-028X
Stefan SütterlinFaculty of Health and Welfare Sciences, Østfold University College, 1757 Halden, Norway.
Giovanna CalogiuriFaculty of Health and Social Sciences, University of South-Eastern Norway, 3045 Drammen, Norway.ORCID 0000-0003-1289-1026

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Natural environments have been shown to trigger psychological and physiological restoration in humans. A new framework regarding natural environments restorative properties is proposed. Conditioned restoration theory builds on a classical conditioning paradigm, postulating the occurrence of four stages: (i) unconditioned restoration, unconditioned positive affective responses reliably occur in a given environment (such as in a natural setting); (ii) restorative conditioning, the positive affective responses become conditioned to the environment; (iii) conditioned restoration, subsequent exposure to the environment, in the absence of the unconditioned stimulus, retrieves the same positive affective responses; and (iv) stimulus generalization, subsequent exposure to associated environmental cues retrieves the same positive affective responses. The process, hypothetically not unique to natural environments, involve the well-documented phenomenon of conditioning, retrieval, and association and relies on evaluative conditioning, classical conditioning, core affect, and conscious expectancy. Empirical findings showing that restoration can occur in non-natural environments and through various sensory stimuli, as well as findings demonstrating that previous negative experience with nature can subsequently lower restorative effects, are also presented in support of the theory. In integration with other existing theories, the theory should prove to be a valuable framework for future research.

Indexed as

Conditioning, ClassicalEnvironmentRelaxation TherapyHumansattention restoration theoryconditioningnature-based recreationnature exposureperceptual fluency accountrestorative environmentsstress reduction theory

Identifiers

PMID32957693
PMCPMC7558998

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Registered trials

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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.