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Identifying category representations for complex stimuli using discrete Markov chain Monte Carlo with people. | LitMetric

AI Article Synopsis

Article Abstract

With the explosion of "big data," digital repositories of texts and images are growing rapidly. These datasets present new opportunities for psychological research, but they require new methodologies before researchers can use these datasets to yield insights into human cognition. We present a new method that allows psychological researchers to take advantage of text and image databases: a procedure for measuring human categorical representations over large datasets of items, such as arbitrary words or pictures. We call this method discrete Markov chain Monte Carlo with people (d-MCMCP). We illustrate our method by evaluating the following categories over datasets: emotions as represented by facial images, moral concepts as represented by relevant words, and seasons as represented by images drawn from large online databases. Three experiments demonstrate that d-MCMCP is powerful and flexible enough to work with complex, naturalistic stimuli drawn from large online databases.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6691032PMC
http://dx.doi.org/10.3758/s13428-019-01201-9DOI Listing

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