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Alphabetic letter identification: Effects of perceivability, similarity, and bias

Shane T Mueller, Christoph Weidemann

Acta Psychologica, Volume: 139, Issue: 1, Pages: 19 - 37

Swansea University Author: Christoph Weidemann

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DOI (Published version): 10.1016/j.actpsy.2011.09.014

Abstract

The legibility of the letters in the Latin alphabet has been measured numerous times since the beginning of experimental psychology. To identify the theoretical mechanisms attributed to letter identification, we report a comprehensive review of literature, spanning more than a century. This review r...

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Published in: Acta Psychologica
ISSN: 0001-6918
Published: 2012
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URI: https://cronfa.swan.ac.uk/Record/cronfa6934
first_indexed 2013-07-23T11:55:51Z
last_indexed 2019-06-12T19:15:41Z
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spelling 2019-06-12T15:03:20.8664003 v2 6934 2012-01-28 Alphabetic letter identification: Effects of perceivability, similarity, and bias b155eeefe08155214e70fea25649223c Christoph Weidemann Christoph Weidemann true false 2012-01-28 PSYS The legibility of the letters in the Latin alphabet has been measured numerous times since the beginning of experimental psychology. To identify the theoretical mechanisms attributed to letter identification, we report a comprehensive review of literature, spanning more than a century. This review revealed that identification accuracy has frequently been attributed to a subset of three common sources: perceivability, bias, and similarity. However, simultaneous estimates of these values have rarely (if ever) been performed. We present the results of two new experiments which allow for the simultaneous estimation of these factors, and examine how the shape of a visual mask impacts each of them, as inferred through a new statistical model. Results showed that the shape and identity of the mask impacted the inferred perceivability, bias, and similarity space of a letter set, but that there were aspects of similarity that were robust to the choice of mask. The results illustrate how the psychological concepts of perceivability, bias, and similarity can be estimated simultaneously, and how each make powerful contributions to visual letter identification. Journal Article Acta Psychologica 139 1 19 37 0001-6918 31 1 2012 2012-01-31 10.1016/j.actpsy.2011.09.014 http://cogsci.info/papers/MuellerWeidemann2012.pdf COLLEGE NANME Psychology School COLLEGE CODE PSYS Swansea University 2019-06-12T15:03:20.8664003 2012-01-28T20:35:07.2770000 Faculty of Medicine, Health and Life Sciences School of Psychology Shane T Mueller 1 Christoph Weidemann 2
title Alphabetic letter identification: Effects of perceivability, similarity, and bias
spellingShingle Alphabetic letter identification: Effects of perceivability, similarity, and bias
Christoph Weidemann
title_short Alphabetic letter identification: Effects of perceivability, similarity, and bias
title_full Alphabetic letter identification: Effects of perceivability, similarity, and bias
title_fullStr Alphabetic letter identification: Effects of perceivability, similarity, and bias
title_full_unstemmed Alphabetic letter identification: Effects of perceivability, similarity, and bias
title_sort Alphabetic letter identification: Effects of perceivability, similarity, and bias
author_id_str_mv b155eeefe08155214e70fea25649223c
author_id_fullname_str_mv b155eeefe08155214e70fea25649223c_***_Christoph Weidemann
author Christoph Weidemann
author2 Shane T Mueller
Christoph Weidemann
format Journal article
container_title Acta Psychologica
container_volume 139
container_issue 1
container_start_page 19
publishDate 2012
institution Swansea University
issn 0001-6918
doi_str_mv 10.1016/j.actpsy.2011.09.014
college_str Faculty of Medicine, Health and Life Sciences
hierarchytype
hierarchy_top_id facultyofmedicinehealthandlifesciences
hierarchy_top_title Faculty of Medicine, Health and Life Sciences
hierarchy_parent_id facultyofmedicinehealthandlifesciences
hierarchy_parent_title Faculty of Medicine, Health and Life Sciences
department_str School of Psychology{{{_:::_}}}Faculty of Medicine, Health and Life Sciences{{{_:::_}}}School of Psychology
url http://cogsci.info/papers/MuellerWeidemann2012.pdf
document_store_str 0
active_str 0
description The legibility of the letters in the Latin alphabet has been measured numerous times since the beginning of experimental psychology. To identify the theoretical mechanisms attributed to letter identification, we report a comprehensive review of literature, spanning more than a century. This review revealed that identification accuracy has frequently been attributed to a subset of three common sources: perceivability, bias, and similarity. However, simultaneous estimates of these values have rarely (if ever) been performed. We present the results of two new experiments which allow for the simultaneous estimation of these factors, and examine how the shape of a visual mask impacts each of them, as inferred through a new statistical model. Results showed that the shape and identity of the mask impacted the inferred perceivability, bias, and similarity space of a letter set, but that there were aspects of similarity that were robust to the choice of mask. The results illustrate how the psychological concepts of perceivability, bias, and similarity can be estimated simultaneously, and how each make powerful contributions to visual letter identification.
published_date 2012-01-31T18:13:44Z
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