Maintenance Cost in the Processing of Subject-Verb Dependencies

• Published in: Journal of experimental psychology. Learning, memory, and cognition Vol. 48; no. 6; pp. 829 - 838
• Main Authors: Ristic, Bojana, Mancini, Simona, Molinaro, Nicola, Staub, Adrian
• Format: Journal Article
• Language: English
• Published: United States American Psychological Association 01.06.2022
• Subjects: Adults; Comprehension; Eye Movements; Eye-Tracking Technology; Foreign Countries; Form Classes (Languages); Humans; Language; Pacing; Phonemes; Reading Comprehension; Reading Processes; Reading Rate; Sentences; Spanish; Verbs; Spain
• ISSN: 0278-7393; 1939-1285
• DOI: 10.1037/xlm0000863

Although research in sentence comprehension has suggested that processing long-distance dependencies involves maintenance between the elements that form the dependency, studies on maintenance of long-distance subject-verb (SV) dependencies are scarce. The few relevant studies have delivered mixed results using self-paced reading or phoneme-monitoring tasks. In the current study, we used eye tracking during reading to test whether maintaining a long-distance SV dependency results in a processing cost on an intervening adverbial clause. In Experiment 1, we studied this question in Spanish and found that both go-past reading times and regressions out of an adverbial clause to the previous regions were significantly increased when the clause interrupts a SV dependency compared to when the same clause doesn't interrupt this dependency. We then replicated these findings in English (Experiment 2), observing significantly increased go-past reading times on a clause interrupting a SV dependency. The current study provides the first eye-tracking data showing a maintenance cost in the processing of SV dependencies cross-linguistically. Sentence comprehension models should account for the maintenance cost generated by SV dependency processing, and future research should focus on the nature of the maintained representation.