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{
    "pk": 28647,
    "title": "Intrinsic whole number bias in an indigenous population",
    "subtitle": null,
    "abstract": "Probabilities can be described by a numerator and a de-nominator and students and decision-makers are not in-different to numerical values of the components. For in-stance, when people compare two equal ratios their choicesgravitate to the option with larger number, even if theyknow both ratios are equal. To the date, however, it is un-clear if whole number biases are present in other cultures.We tested a farming-foraging group living in the Bolivianrain forest in a simple 2AFC ratio comparison task. Af-ter appropriate training, the Tsimane were highly accu-rate in this task, confirming that visual proportional rea-soning is present across cultures. Importantly, they hada strong tendency to favor large numbers in equal ratiocomparisons, similar to what is found in educated popu-lations. Even though our sample size is moderate (n=76),the whole number bias we found occurred under good pro-portional reasoning. The bias may be a general feature ofcognition, rather than a cultural or education artifact, thatmay help humans solve ambiguous situations.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [
        {
            "word": "Tsimane; Numerical cognition; Fraction;Probability; Whole number bias"
        }
    ],
    "section": "Papers with Poster Presentations",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/69w031hg",
    "frozenauthors": [
        {
            "first_name": "Santiago",
            "middle_name": "",
            "last_name": "Alonso-Díaz",
            "name_suffix": "",
            "institution": "Universidad Javeriana",
            "department": ""
        },
        {
            "first_name": "Jessica",
            "middle_name": "F.",
            "last_name": "Cantlon",
            "name_suffix": "",
            "institution": "Carnegie Mellon",
            "department": ""
        },
        {
            "first_name": "Steven",
            "middle_name": "T.",
            "last_name": "Piantadosi",
            "name_suffix": "",
            "institution": "Berkeley University",
            "department": ""
        }
    ],
    "date_submitted": null,
    "date_accepted": null,
    "date_published": "2019-01-01T18:00:00Z",
    "render_galley": null,
    "galleys": [
        {
            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/28647/galley/18518/download/"
        }
    ]
}