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{
    "pk": 50169,
    "title": "Spontaneous small ratio production in perceptual comparison task",
    "subtitle": null,
    "abstract": "How does the perceptual system compare quantities in the environment? Adult participants (n=47) were asked to judge the relative similarity or dissimilarity of two line lengths or brightnesses by making a mouse click along an unmarked horizontal bar. Despite receiving no instruction or feedback regarding how the stimuli should be compared, responding was remarkably consistent across observers and between modalities. A linear model based on the ratio of the smaller to the larger magnitude accounted for 92% and 93% of variance in average responses to line lengths and brightnesses (respectively) across 28 repeated stimulus pairs. A replication using 336 randomly generated pairs showed similar results (with 90% and 91% of variance accounted for). Decades of psychophysical research have delivered mixed results with respect to the relative importance of ratios – as opposed to differences – in perceptual comparison. The current data suggest ‘small ratios' (Morton et al., 2024) are the predominant comparative function.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [
        {
            "word": "Psychology; Perception; Sensory Processing; Vision; Psychophysics"
        }
    ],
    "section": "Member Abstracts with Poster Presentation",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/1dc4h21m",
    "frozenauthors": [
        {
            "first_name": "Nicola",
            "middle_name": "J",
            "last_name": "Morton",
            "name_suffix": "",
            "institution": "University of Canterbury",
            "department": ""
        },
        {
            "first_name": "Dr Anna J",
            "middle_name": "",
            "last_name": "Wilson",
            "name_suffix": "",
            "institution": "University of Canterbury",
            "department": ""
        },
        {
            "first_name": "Dr Simon",
            "middle_name": "",
            "last_name": "Kemp",
            "name_suffix": "",
            "institution": "University of Canterbury",
            "department": ""
        },
        {
            "first_name": "Randolph",
            "middle_name": "C",
            "last_name": "Grace",
            "name_suffix": "",
            "institution": "University of Canterbury",
            "department": ""
        }
    ],
    "date_submitted": null,
    "date_accepted": null,
    "date_published": "2025-01-01T18:00:00Z",
    "render_galley": null,
    "galleys": [
        {
            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/50169/galley/38131/download/"
        }
    ]
}