{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T06:41:53Z","timestamp":1789540913424,"version":"build-2803163510"},"reference-count":36,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T00:00:00Z","timestamp":1786492800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Cognit."],"abstract":"<jats:p>The field of eco-affective health has produced a growing body of evidence linking environmental change to human psychological and cognitive functioning, but it has done so without a shared methodological foundation. Studies of solastalgia, eco-anxiety, environmental risk perception, and adaptive decision-making use incompatible instruments, inconsistent scoring procedures, and divergent operationalizations of the same constructs, limiting cumulative knowledge, cross-study comparison, and translation into policy-relevant surveillance. This Methods paper introduces the Eco-Affective Health Assessment Protocol (EAHAP): a standardized, multimodal, and modular instrument battery designed to measure affective, cognitive, and functional responses to environmental change in a coherent and replicable framework. The EAHAP organizes existing instruments, the large majority independently validated, with one adapted ecological grief measure explicitly flagged as a candidate instrument pending independent psychometric validation, into three interdependent domains. The eco-affective domain covers solastalgia, eco-anxiety, ecological grief, affective numbing, and place attachment. The cognitive domain covers environmental risk perception, attentional processing, environmental appraisal, and adaptive decision-making under ecological stress. The functional domain covers psychological distress, anxiety and depressive symptoms, sleep disruption, and daily functioning limitation. Each domain is theoretically positioned within the Eco-Affective Health framework as a distinct signal layer, with eco-affective states functioning as early-warning indicators, cognitive mediators explaining variability in response to identical exposures, and functional outcomes providing downstream validation and economic relevance. The paper provides a complete description of materials and instruments, a step-by-step implementation protocol with timing and decision rules, a module selection matrix for different study types, anticipated results with expected psychometric properties, and a troubleshooting guide for the most common pitfalls. Cultural adaptation procedures are specified as a mandatory component of all implementations. The EAHAP is designed to be modular, allowing domain-specific use in fundamental research, and fully integrated for epidemiological surveillance, early warning systems, and intervention evaluation. By providing a shared methodological infrastructure, the EAHAP aims to accelerate the development of eco-affective health as a cumulative, cross-contextual, and policy-relevant scientific field.<\/jats:p>","DOI":"10.3389\/fcogn.2026.1881278","type":"journal-article","created":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T04:42:42Z","timestamp":1786509762000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["The eco-affective health assessment protocol: a standardized multimodal instrument battery for measuring affective, cognitive, and functional responses to environmental change"],"prefix":"10.3389","volume":"5","author":[{"given":"Lucas Murrins","family":"Marques","sequence":"first","affiliation":[{"name":"Mental Health Department, Santa Casa de Sao Paulo School of Medical Sciences","place":["S\u00e3o Paulo, Brazil"]},{"name":"Eco-Wellbeing & Affective Health Laboratory (EWAH Lab)","place":["S\u00e3o Paulo, Brazil"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,8,12]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","DOI":"10.1007\/s10393-025-01715-z","article-title":"Mental health, solastalgia, and food insecurity in Colombian Indigenous communities","author":"Agudelo-Hern\u00e1ndez","year":"2025","journal-title":"EcoHealth."},{"key":"B2","doi-asserted-by":"publisher","first-page":"S95","DOI":"10.1080\/10398560701701288","article-title":"Solastalgia: the distress caused by environmental change","volume":"15","author":"Albrecht","year":"2007","journal-title":"Austral. 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