Expertise in spotting differences between fingerprints

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Description: In this experiment, we will test to see whether expert fingerprint examiners have better visual search abilities compared to novices with a class of stimuli they are familiar with. We will also test whether their superior performance disappears when the structural regularities of the stimuli are removed, or if asked to spot non-diagnostic information. We have conceptualised a fingerprint-like visual search task much like the spot-the-difference tasks you might see in a newspaper to assess how well people can find points of disagreement between prints. Participants will be presented with two fingerprint images side-by-side that are identical but for one fragment that has been replaced with alternative ridge information. They will be asked to spot this difference.

License: CC-By Attribution 4.0 International

Wiki

Expertise in spotting differences between fingerprints The contributors to this project are listed alphabetically until the resulting manuscript has been submitted for publication. Rationale Visual skills like identifying, classifying, and matching objects enable humans to navigate a world in which they continually encounter new stimuli. With practice, however, these general skills allow people to...

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Components

  • Materials

    A description of how we generated the images for the experiment can be found in the Wiki below. All of the scrambled images were generated in Photosho...

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  • Sequences

    This component contains the full set of 64 pre-generated participant sequences as unique .txt files that are read into the experiment software (see So...

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  • Software

    This component contains the LiveCode source file (version 9.0.2) for presenting the sequences and materials to participants and collecting their respo...

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  • Data

    This component contains the deidentified data for this experiment stored as .csv files

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  • Analysis

    This component includes our complete data analytic pipeline: from raw individual .txt files to final R Markdown plots and analyses. The "analysis fold...

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  • Communication

    Preprints, publications, presentations, and other resources related to the communication of this project will be stored in this component.

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