The optimal experimental design for multiple alternatives perceptual search.

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dc.contributor.author Finlayson, Nonie J en
dc.contributor.author Manser-Smith, Kelda en
dc.contributor.author Balraj, Annika en
dc.contributor.author de Haas, Benjamin en
dc.contributor.author Schwarzkopf, Dietrich en
dc.date.accessioned 2018-10-17T03:34:13Z en
dc.date.issued 2018-11 en
dc.identifier.issn 1943-3921 en
dc.identifier.uri http://hdl.handle.net/2292/42623 en
dc.description.abstract Perceptual bias is inherent to all our senses, particularly in the form of visual illusions and aftereffects. However, many experiments measuring perceptual biases may be susceptible to nonperceptual factors, such as response bias and decision criteria. Here, we quantify how robust multiple alternative perceptual search (MAPS) is for disentangling estimates of perceptual biases from these confounding factors. First, our results show that while there are considerable response biases in our four-alternative forced-choice design, these are unrelated to perceptual biases estimates, and these response biases are not produced by the response modality (keyboard vs. mouse). We also show that perceptual bias estimates are reduced when feedback is given on each trial, likely due to feedback enabling observers to partially (and actively) correct for perceptual biases. However, this does not impact the reliability with which MAPS detects the presence of perceptual biases. Finally, our results show that MAPS can detect actual perceptual biases and is not a decisional bias towards choosing the target in the middle of the candidate stimulus distribution. In summary, researchers conducting a MAPS experiment should use a constant reference stimulus, but consider varying the mean of the candidate distribution. Ideally, they should not employ trial-wise feedback if the magnitude of perceptual biases is of interest. en
dc.format.medium Print en
dc.language eng en
dc.relation.ispartofseries Attention, perception & psychophysics en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.subject Humans en
dc.subject Pattern Recognition, Visual en
dc.subject Size Perception en
dc.subject Decision Making en
dc.subject Psychomotor Performance en
dc.subject Research Design en
dc.subject Adult en
dc.subject Female en
dc.subject Male en
dc.subject Young Adult en
dc.title The optimal experimental design for multiple alternatives perceptual search. en
dc.type Journal Article en
dc.identifier.doi 10.3758/s13414-018-1568-x en
pubs.issue 8 en
pubs.begin-page 1962 en
pubs.volume 80 en
dc.rights.holder Copyright: The author en
pubs.end-page 1973 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Journal Article en
pubs.elements-id 750772 en
pubs.org-id Medical and Health Sciences en
pubs.org-id Optometry and Vision Science en
dc.identifier.eissn 1943-393X en
pubs.record-created-at-source-date 2018-07-26 en
pubs.dimensions-id 30043137 en


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