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{
    "pk": 28667,
    "title": "Memory maintenance of gradient speech representations is mediated by theirexpected utility",
    "subtitle": null,
    "abstract": "Language understanding requires listeners to quickly compresslarge amounts of perceptual information into abstract linguis-tic categories. Critical cues to those categories are distributedacross the speech signal, with some cues appearing substan-tially later. Speech perception would thus be facilitated if gra-dient sub-categorical representations of the input are main-tained in memory, allowing optimal cue integration. How-ever, indiscriminate maintenance of the high-dimensional sig-nal would tax memory systems. We hypothesize that speechperception balances these pressures by maintaining gradientrepresentations that are expected to facilitate category recog-nition. Two perception experiments test this hypothesis. Be-tween participants, an initial exposure phase manipulated theutility of information maintenance: in the High-Informativitygroup, following context always was informative; in the Low-Informativity group, following context always was uninforma-tive. A subsequent test phase measured the extent to whichparticipants maintained gradient representations. The Low-Informativity group showed less maintenance, compared to theHigh-Informativity group (Experiment 1). We then increasedthe task demands and made the targets of the manipulation lessobvious to participants (Experiment 2). We found a qualita-tively similar pattern. Together, these results suggest that lis-teners are capable of allocating memory to gradient representa-tions of the speech input based on the expected utility of thoserepresentations.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [
        {
            "word": "speech perception; cue integration; memory; ex-pected utility"
        }
    ],
    "section": "Papers with Poster Presentations",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/6cw080rb",
    "frozenauthors": [
        {
            "first_name": "Wednesday",
            "middle_name": "",
            "last_name": "Bushong",
            "name_suffix": "",
            "institution": "University of Rochester",
            "department": ""
        },
        {
            "first_name": "T. Florian",
            "middle_name": "",
            "last_name": "Jaeger",
            "name_suffix": "",
            "institution": "University of Rochester",
            "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/28667/galley/18538/download/"
        }
    ]
}