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Why word length only matters in the left visual field.
Neuropsychologia. 2004; 42(12):1680-8.N

Abstract

During visual word recognition, string length affects performance when stimuli are presented to the left visual field (LVF), but not when they are presented to the right visual field (RVF). Using a lexical-decision experiment, we investigated an account of this phenomenon based on the SERIOL model of letter-position encoding. Bottom-up activation patterns were adjusted via positional manipulations of letter contrast. This manipulation eliminated the LVF length effect by facilitating responses to longer words, thereby demonstrating that a length effect is not an inherent property of right-hemisphere processing. In contrast, the same manipulation slowed responses to longer words in the RVF, creating a length effect. These results show that hemisphere-specific activation patterns are the source of the asymmetry of the length effect.

Authors+Show Affiliations

Whitney C
Department of Computer Science, Neural and Cognitive Sciences Program, University of Maryland, A.V. Williams Building, College Park, MD 20742, USA. cwhitney@cs.umd.edu
Lavidor M
No affiliation info available

MeSH

AdolescentAdultComputational BiologyFemaleFunctional LateralityHumansMaleModels, NeurologicalModels, PsychologicalPattern Recognition, VisualReadingRecognition, PsychologyReference ValuesVisual Fields

Pub Type(s)

Clinical Trial
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15327934

Citation

Whitney, Carol, and Michal Lavidor. "Why Word Length Only Matters in the Left Visual Field." Neuropsychologia, vol. 42, no. 12, 2004, pp. 1680-8.
Whitney C, Lavidor M. Why word length only matters in the left visual field. Neuropsychologia. 2004;42(12):1680-8.
Whitney, C., & Lavidor, M. (2004). Why word length only matters in the left visual field. Neuropsychologia, 42(12), 1680-8.
Whitney C, Lavidor M. Why Word Length Only Matters in the Left Visual Field. Neuropsychologia. 2004;42(12):1680-8. PubMed PMID: 15327934.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Why word length only matters in the left visual field. AU - Whitney,Carol, AU - Lavidor,Michal, PY - 2003/11/07/received PY - 2004/04/15/revised PY - 2004/04/21/accepted PY - 2004/8/26/pubmed PY - 2004/12/22/medline PY - 2004/8/26/entrez SP - 1680 EP - 8 JF - Neuropsychologia JO - Neuropsychologia VL - 42 IS - 12 N2 - During visual word recognition, string length affects performance when stimuli are presented to the left visual field (LVF), but not when they are presented to the right visual field (RVF). Using a lexical-decision experiment, we investigated an account of this phenomenon based on the SERIOL model of letter-position encoding. Bottom-up activation patterns were adjusted via positional manipulations of letter contrast. This manipulation eliminated the LVF length effect by facilitating responses to longer words, thereby demonstrating that a length effect is not an inherent property of right-hemisphere processing. In contrast, the same manipulation slowed responses to longer words in the RVF, creating a length effect. These results show that hemisphere-specific activation patterns are the source of the asymmetry of the length effect. SN - 0028-3932 UR - https://www.unboundmedicine.com/medline/citation/15327934/Why_word_length_only_matters_in_the_left_visual_field_ DB - PRIME DP - Unbound Medicine ER -