An evidence accumulation model of perceptual discrimination with naturalistic stimuli

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Description: Evidence accumulation models have been used to describe the cognitive processes underlying performance across a number of domains. Previous applications of these models have typically involved decisions about basic perceptual stimuli (e.g., lexical decisions). Applied perceptual domains, such as fingerprint discrimination, face recognition or medical image interpretation, however, require the processing of complex visual information and therefore manifest extended response times. However, typical decision-making models applied in these domains, such signal detection theory, do not account for such temporal information, which is closely related to accuracy. We apply a dynamic decision-making model – the linear ballistic accumulator (LBA) – to fingerprint discrimination decisions in order to gain insight into the cognitive processes underlying these decisions.

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An evidence accumulation model of perceptual discrimination with naturalistic stimuli Background Evidence accumulation models have been used to describe the cognitive processes underlying performance across a number of domains. Previous applications of these models have typically involved decisions about basic perceptual stimuli (e.g., lexical decisions). Applied perceptual domains, such as finger...

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  • An evidence accumulation model of perceptual discrimination with naturalistic stimuli

    Evidence accumulation models have been used to describe the cognitive processes underlying performance across a number of domains. Previous applicatio...

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  • Raw Data

    Zip folders contain all raw data files for the three experiments. Data was collected by Annabel Persson.

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  • Experiment Software

    The experiment code for all three experiments was created in LiveCode's Community Edition (version 7.06). LiveCode's Community Edition is a free ope...

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  • Data Analysis

    Evidence accumulation modelling for all three experiments was conducted by Hector Palada and Timothy Ballard. Correspondence about the software and co...

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