Strong expectations cancel locality effects: evidence from Hindi.

Expectation-driven facilitation (Hale, 2001; Levy, 2008) and locality-driven retrieval difficulty (Gibson, 1998, 2000; Lewis & Vasishth, 2005) are widely recognized to be two critical factors in incremental sentence processing; there is accumulating evidence that both can influence processing di...

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Main Authors: Samar Husain, Shravan Vasishth, Narayanan Srinivasan
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25010700/?tool=EBI
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author Samar Husain
Shravan Vasishth
Narayanan Srinivasan
author_facet Samar Husain
Shravan Vasishth
Narayanan Srinivasan
author_sort Samar Husain
collection DOAJ
description Expectation-driven facilitation (Hale, 2001; Levy, 2008) and locality-driven retrieval difficulty (Gibson, 1998, 2000; Lewis & Vasishth, 2005) are widely recognized to be two critical factors in incremental sentence processing; there is accumulating evidence that both can influence processing difficulty. However, it is unclear whether and how expectations and memory interact. We first confirm a key prediction of the expectation account: a Hindi self-paced reading study shows that when an expectation for an upcoming part of speech is dashed, building a rarer structure consumes more processing time than building a less rare structure. This is a strong validation of the expectation-based account. In a second study, we show that when expectation is strong, i.e., when a particular verb is predicted, strong facilitation effects are seen when the appearance of the verb is delayed; however, when expectation is weak, i.e., when only the part of speech "verb" is predicted but a particular verb is not predicted, the facilitation disappears and a tendency towards a locality effect is seen. The interaction seen between expectation strength and distance shows that strong expectations cancel locality effects, and that weak expectations allow locality effects to emerge.
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spelling doaj.art-368d772ffbab46849700af679d9efc292022-12-21T17:44:00ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0197e10098610.1371/journal.pone.0100986Strong expectations cancel locality effects: evidence from Hindi.Samar HusainShravan VasishthNarayanan SrinivasanExpectation-driven facilitation (Hale, 2001; Levy, 2008) and locality-driven retrieval difficulty (Gibson, 1998, 2000; Lewis & Vasishth, 2005) are widely recognized to be two critical factors in incremental sentence processing; there is accumulating evidence that both can influence processing difficulty. However, it is unclear whether and how expectations and memory interact. We first confirm a key prediction of the expectation account: a Hindi self-paced reading study shows that when an expectation for an upcoming part of speech is dashed, building a rarer structure consumes more processing time than building a less rare structure. This is a strong validation of the expectation-based account. In a second study, we show that when expectation is strong, i.e., when a particular verb is predicted, strong facilitation effects are seen when the appearance of the verb is delayed; however, when expectation is weak, i.e., when only the part of speech "verb" is predicted but a particular verb is not predicted, the facilitation disappears and a tendency towards a locality effect is seen. The interaction seen between expectation strength and distance shows that strong expectations cancel locality effects, and that weak expectations allow locality effects to emerge.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25010700/?tool=EBI
spellingShingle Samar Husain
Shravan Vasishth
Narayanan Srinivasan
Strong expectations cancel locality effects: evidence from Hindi.
PLoS ONE
title Strong expectations cancel locality effects: evidence from Hindi.
title_full Strong expectations cancel locality effects: evidence from Hindi.
title_fullStr Strong expectations cancel locality effects: evidence from Hindi.
title_full_unstemmed Strong expectations cancel locality effects: evidence from Hindi.
title_short Strong expectations cancel locality effects: evidence from Hindi.
title_sort strong expectations cancel locality effects evidence from hindi
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25010700/?tool=EBI
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AT shravanvasishth strongexpectationscancellocalityeffectsevidencefromhindi
AT narayanansrinivasan strongexpectationscancellocalityeffectsevidencefromhindi