Subjects are not all alike: Eye-tracking the agent preference in Spanish.

Experimental research on argument structure has reported mixed results regarding the processing of unaccusative and unergative predicates. Using eye tracking in the visual world paradigm, this study seeks to fill a gap in the literature by presenting new evidence of the processing distinction betwee...

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Main Authors: Beatriz Gómez-Vidal, Miren Arantzeta, Jon Paul Laka, Itziar Laka
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0272211
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author Beatriz Gómez-Vidal
Miren Arantzeta
Jon Paul Laka
Itziar Laka
author_facet Beatriz Gómez-Vidal
Miren Arantzeta
Jon Paul Laka
Itziar Laka
author_sort Beatriz Gómez-Vidal
collection DOAJ
description Experimental research on argument structure has reported mixed results regarding the processing of unaccusative and unergative predicates. Using eye tracking in the visual world paradigm, this study seeks to fill a gap in the literature by presenting new evidence of the processing distinction between agent and theme subjects. We considered two hypotheses. First, the Unaccusative Hypothesis states that unaccusative (theme) subjects involve a more complex syntactic representation than unergative (agent) subjects. It predicts a delayed reactivation of unaccusative subjects compared to unergatives after the presentation of the verb. Second, the Agent First Hypothesis states that the first ambiguous NP of a sentence will preferably be interpreted as an agent due to an attentional preference to agents over themes. It predicts a larger reactivation of agent subjects than themes. We monitored the time course of gaze fixations of 44 native speakers across a visual display while processing sentences with unaccusative, unergative and transitive verbs. One of the pictures in the visual display was semantically related to the sentential subject. We analyzed fixation patterns in three different time frames: the verb frame, the post-verb frame, and the global post-verbal frame. Results indicated that sentential subjects across the three conditions were significantly activated when participants heard the verb; this is compatible with observing a post-verbal reactivation effect. Time course and magnitude of the gaze-fixation patterns are fully compatible with the predictions made by the Agent First Hypothesis. Thus, we report new evidence for (a) a processing distinction between unaccusative and unergative predicates in sentence comprehension, and (b) an attentional preference towards agents over themes, reflected by a larger reactivation effect in agent subjects.
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spelling doaj.art-387a2ff6e5544c7fadc85057e42e0ca42022-12-22T03:05:48ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01178e027221110.1371/journal.pone.0272211Subjects are not all alike: Eye-tracking the agent preference in Spanish.Beatriz Gómez-VidalMiren ArantzetaJon Paul LakaItziar LakaExperimental research on argument structure has reported mixed results regarding the processing of unaccusative and unergative predicates. Using eye tracking in the visual world paradigm, this study seeks to fill a gap in the literature by presenting new evidence of the processing distinction between agent and theme subjects. We considered two hypotheses. First, the Unaccusative Hypothesis states that unaccusative (theme) subjects involve a more complex syntactic representation than unergative (agent) subjects. It predicts a delayed reactivation of unaccusative subjects compared to unergatives after the presentation of the verb. Second, the Agent First Hypothesis states that the first ambiguous NP of a sentence will preferably be interpreted as an agent due to an attentional preference to agents over themes. It predicts a larger reactivation of agent subjects than themes. We monitored the time course of gaze fixations of 44 native speakers across a visual display while processing sentences with unaccusative, unergative and transitive verbs. One of the pictures in the visual display was semantically related to the sentential subject. We analyzed fixation patterns in three different time frames: the verb frame, the post-verb frame, and the global post-verbal frame. Results indicated that sentential subjects across the three conditions were significantly activated when participants heard the verb; this is compatible with observing a post-verbal reactivation effect. Time course and magnitude of the gaze-fixation patterns are fully compatible with the predictions made by the Agent First Hypothesis. Thus, we report new evidence for (a) a processing distinction between unaccusative and unergative predicates in sentence comprehension, and (b) an attentional preference towards agents over themes, reflected by a larger reactivation effect in agent subjects.https://doi.org/10.1371/journal.pone.0272211
spellingShingle Beatriz Gómez-Vidal
Miren Arantzeta
Jon Paul Laka
Itziar Laka
Subjects are not all alike: Eye-tracking the agent preference in Spanish.
PLoS ONE
title Subjects are not all alike: Eye-tracking the agent preference in Spanish.
title_full Subjects are not all alike: Eye-tracking the agent preference in Spanish.
title_fullStr Subjects are not all alike: Eye-tracking the agent preference in Spanish.
title_full_unstemmed Subjects are not all alike: Eye-tracking the agent preference in Spanish.
title_short Subjects are not all alike: Eye-tracking the agent preference in Spanish.
title_sort subjects are not all alike eye tracking the agent preference in spanish
url https://doi.org/10.1371/journal.pone.0272211
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AT mirenarantzeta subjectsarenotallalikeeyetrackingtheagentpreferenceinspanish
AT jonpaullaka subjectsarenotallalikeeyetrackingtheagentpreferenceinspanish
AT itziarlaka subjectsarenotallalikeeyetrackingtheagentpreferenceinspanish