Single-Trial Inference on Visual Attention

    2 Citationer (Scopus)

    Abstract

    In this paper we take a step towards single-trial behavioral modeling within a Theory of Visual Attention (TVA). In selective attention tasks, such as the Partial Report paradigm, the subject is asked to ignore distractors and only report stimuli that belong to the target class. Nothing about a distractor is observed directly in the subject’s overt behavior, hence behavioral modeling of such trials involves out-marginalizing the variables that represent the distractors’ influence on behavior. In this paper we derive equations for inferring a latent representation of the distractors on a Partial Report trial. This result retrodicts a latent attentional state of the subject using the observed response from that particular trial and thus differs from other predictions made with TVA which are based on expected values of observed variables. We show an example of the result in single-trial analysis of an occipital EEG component.
    OriginalsprogEngelsk
    TidsskriftAIP Conference Proceedings
    Vol/bind1371
    Sider (fra-til)37-43
    Antal sider7
    ISSN0094-243X
    DOI
    StatusUdgivet - 2011
    BegivenhedINTERNATIONAL SYMPOSIUM ON COMPUTATIONAL MODELS FOR LIFE SCIENCES - Toyama, Japan
    Varighed: 11 okt. 201113 okt. 2011

    Konference

    KonferenceINTERNATIONAL SYMPOSIUM ON COMPUTATIONAL MODELS FOR LIFE SCIENCES
    Land/OmrådeJapan
    ByToyama
    Periode11/10/201113/10/2011

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