Examining Letter Detector Tolerance through Offset Letter Halves: Evidence from Lexical Decision

Neurobiological models of reading assume that the specialized detectors at the letter level (e.g., the arrays of detectors for the letter ‘n’) possess a certain degree of tolerance (e.g., Local Combination Detectors model, Dehaene et al. 2005). In this study, we designed two lexical decision experim...

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Main Authors: Manuel Perea, Inka Romero-Ortells, Melanie Labusch, María Fernández-López, Ana Marcet
Format: Article
Language:English
Published: Ubiquity Press 2023-09-01
Series:Journal of Cognition
Subjects:
Online Access:https://account.journalofcognition.org/index.php/up-j-jc/article/view/322
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author Manuel Perea
Inka Romero-Ortells
Melanie Labusch
María Fernández-López
Ana Marcet
author_facet Manuel Perea
Inka Romero-Ortells
Melanie Labusch
María Fernández-López
Ana Marcet
author_sort Manuel Perea
collection DOAJ
description Neurobiological models of reading assume that the specialized detectors at the letter level (e.g., the arrays of detectors for the letter ‘n’) possess a certain degree of tolerance (e.g., Local Combination Detectors model, Dehaene et al. 2005). In this study, we designed two lexical decision experiments that examined the limits of tolerance of letter detectors by introducing a novel manipulation involving shifting letter halves (e.g., animal in Experiment 1; animal in Experiment 2) relative to intact items. This manipulation alters the transition between upper and lower parts of the letters, adding junctions that do not exist in the intact letter forms. We included high- and low-frequency words in the stimulus list to investigate whether letter distortion affects processing beyond the letter level, reasoning that interactive effects would signal top-down lexical feedback. In Experiment 1, which employed a subtle letter shift, we observed a minimal cost of letter distortion that did not interact with word frequency. Experiment 2, employing a larger letter shift, revealed an overall greater reading cost that affected differentially high- and low-frequency words. Overall, these findings offer insights into the limits of resilience in letter detectors to distortion during word recognition and introduce a novel manipulation of letter distortion.
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spelling doaj.art-f623e8a775af41db87599d4759f0efd62023-10-19T08:10:28ZengUbiquity PressJournal of Cognition2514-48202023-09-0161565610.5334/joc.322321Examining Letter Detector Tolerance through Offset Letter Halves: Evidence from Lexical DecisionManuel Perea0https://orcid.org/0000-0002-3291-1365Inka Romero-Ortells1https://orcid.org/0009-0002-3888-6129Melanie Labusch2https://orcid.org/0000-0002-5556-4685María Fernández-López3https://orcid.org/0000-0001-7419-7369Ana Marcet4https://orcid.org/0000-0001-8755-5903Department of Methodology and ERI-Lectura, Universitat de València, Valencia; Centro de Investigación Nebrija en Cognición (CINC), Universidad Nebrija, MadridCentro de Investigación Nebrija en Cognición (CINC), Universidad Nebrija, MadridDepartment of Methodology and ERI-Lectura, Universitat de València, Valencia; Centro de Investigación Nebrija en Cognición (CINC), Universidad Nebrija, MadridDepartment of Basic Psychology, Methodology, and ERI-Lectura, Universitat de València, Valencia; Department of Psychology and Sociology, School of Social and Human Sciences, Universidad de Zaragoza, TeruelGrupo de Investigación en Enseñanza de Lenguas (GIEL), Department of Language and Literature Teaching, Universitat de València, ValenciaNeurobiological models of reading assume that the specialized detectors at the letter level (e.g., the arrays of detectors for the letter ‘n’) possess a certain degree of tolerance (e.g., Local Combination Detectors model, Dehaene et al. 2005). In this study, we designed two lexical decision experiments that examined the limits of tolerance of letter detectors by introducing a novel manipulation involving shifting letter halves (e.g., animal in Experiment 1; animal in Experiment 2) relative to intact items. This manipulation alters the transition between upper and lower parts of the letters, adding junctions that do not exist in the intact letter forms. We included high- and low-frequency words in the stimulus list to investigate whether letter distortion affects processing beyond the letter level, reasoning that interactive effects would signal top-down lexical feedback. In Experiment 1, which employed a subtle letter shift, we observed a minimal cost of letter distortion that did not interact with word frequency. Experiment 2, employing a larger letter shift, revealed an overall greater reading cost that affected differentially high- and low-frequency words. Overall, these findings offer insights into the limits of resilience in letter detectors to distortion during word recognition and introduce a novel manipulation of letter distortion.https://account.journalofcognition.org/index.php/up-j-jc/article/view/322lexical accessword recognitionlexical decisionletter distortion
spellingShingle Manuel Perea
Inka Romero-Ortells
Melanie Labusch
María Fernández-López
Ana Marcet
Examining Letter Detector Tolerance through Offset Letter Halves: Evidence from Lexical Decision
Journal of Cognition
lexical access
word recognition
lexical decision
letter distortion
title Examining Letter Detector Tolerance through Offset Letter Halves: Evidence from Lexical Decision
title_full Examining Letter Detector Tolerance through Offset Letter Halves: Evidence from Lexical Decision
title_fullStr Examining Letter Detector Tolerance through Offset Letter Halves: Evidence from Lexical Decision
title_full_unstemmed Examining Letter Detector Tolerance through Offset Letter Halves: Evidence from Lexical Decision
title_short Examining Letter Detector Tolerance through Offset Letter Halves: Evidence from Lexical Decision
title_sort examining letter detector tolerance through offset letter halves evidence from lexical decision
topic lexical access
word recognition
lexical decision
letter distortion
url https://account.journalofcognition.org/index.php/up-j-jc/article/view/322
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AT inkaromeroortells examiningletterdetectortolerancethroughoffsetletterhalvesevidencefromlexicaldecision
AT melanielabusch examiningletterdetectortolerancethroughoffsetletterhalvesevidencefromlexicaldecision
AT mariafernandezlopez examiningletterdetectortolerancethroughoffsetletterhalvesevidencefromlexicaldecision
AT anamarcet examiningletterdetectortolerancethroughoffsetletterhalvesevidencefromlexicaldecision