{
  "abstract": "Craving is a powerful urge for a specific target (e.g., food, drugs) that prompts decisions directed at satisfying craving. While prior laboratory studies suggest craving biases behavior by amplifying target-specific value, the real-world generalizability of this mechanism remains unknown. We validate and extend these findings in a 28-day naturalistic smartphone-enabled study in patients with opioid use disorder (N=67) and community controls (N=49) who reported on their food (savory, sweet) and drug (opioid) urges and willingness-to-pay values. Despite person-level (mean) covariation, food and drug urges fluctuated largely independently within individuals while maintaining target-specific relationships with value. Using dynamics in drug urge and value and computational modeling, we isolated a distinct, ecologically relevant craving “state” tied to drug cue exposure and drug use in daily life. This research shows craving acts on normative valuation processes in real-world decision making and offers a novel approach to infer clinically vulnerable moments for behavior change.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "name": "Sergej Grunevski"
    },
    {
      "name": "Emmanuel E. Alvarez"
    },
    {
      "name": "Emma M. Schweitzer"
    },
    {
      "name": "Julia Kong"
    },
    {
      "name": "Sahar Hafezi"
    },
    {
      "name": "Anna B. Konova"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fdctqn2pvnkvg.bib",
  "cited_by": 0,
  "doi": "10.31234/osf.io/vfjkd_v3",
  "fulltext_url": null,
  "id": "fdctqn2pvnkvg",
  "issns": [],
  "landing_url": "https://osf.io/preprints/psyarxiv/vfjkd_v3/",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "bepress",
      "Behavioral Economics"
    ],
    [
      "bepress",
      "Clinical Psychology"
    ],
    [
      "bepress",
      "Cognitive Psychology"
    ],
    [
      "bepress",
      "Consumer Psychology"
    ],
    [
      "bepress",
      "Contingent Valuation"
    ],
    [
      "bepress",
      "Emotion"
    ],
    [
      "bepress",
      "Health Psychology"
    ],
    [
      "bepress",
      "Health-related Behavior"
    ],
    [
      "bepress",
      "Judgment and Decision Making"
    ],
    [
      "bepress",
      "Psychiatry"
    ],
    [
      "bepress",
      "Social and Behavioral Sciences"
    ],
    [
      "bepress",
      "Substance Abuse and Addiction"
    ],
    [
      "openalex",
      "2739|Opioid Use Disorder Treatment"
    ]
  ],
  "openalex": "W7219684283",
  "pdf_url": "https://osf.io/vfjkd/download",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fdctqn2pvnkvg.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:17Z",
      "native_id": "vfjkd",
      "source": "osf",
      "url": "https://osf.io/preprints/psyarxiv/vfjkd_v2/"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "bepress:Clinical Psychology",
      "subfield": "psychiatry"
    }
  ],
  "title": "Day-to-day fluctuations in craving and the value of drugs and food in daily life",
  "title_text": "Day-to-day fluctuations in craving and the value of drugs and food in daily life",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:38Z",
  "url": "https://research.draconitic.com/paper/fdctqn2pvnkvg",
  "venue": "PsyArXiv",
  "versions": []
}