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Reading proficiency and spatial eye-movement control in L1 and L2 reading

Research on eye movement control during first language (L1) reading has long since established that (i) words are read most efficiently when the first saccade into the word lands near its center, (ii) words are refixated more often when landing positions deviate from the center of the word, and (iii) relatively proficient readers' saccades land closer to this center position. Eye-tracking studies of second language (L2) reading tend to compare participant groups based on their language background (L1 vs L2) rather than L2 proficiency. As of yet, there has been no comparison of these approaches. This study reports a comparative analysis of the Multilingual Eye-movement COrpus (MECO), which contains data on English text reading and its component skills from 543 participants representing 12 different L1s. Analyses of the distributions of initial landing positions and refixation probabilities establish that the gradient measure of proficiency in English (as L1 or L2) has a greater explanatory power than categorical contrasts between language backgrounds. We also found that English proficiency has a gradient effect on efficiency of saccadic targeting: more proficient readers landed their initial saccades closer to the word's center. However, more proficient readers of English were also less accurate in their saccadic targeting, showing greater dispersion of initial landing positions. We link this puzzling finding to the observation that landing in a suboptimal position comes with a much higher processing cost (refixation probability) for less proficient readers. This study discusses theoretical and methodological implications of the novel findings for reading research. / Thesis / Master of Science (MSc) / When we read text, we do not continuously move our eyes across it, but we make a series of rapid eye fixations on different parts of the text. Scientists know that if we fixate our eyes on a center of a word rather than on its beginning or end, we will understand that word the fastest. Highly skilled readers make the first fixation on any word in a more optimal place compared to less skilled readers. Making such optimal fixations allows highly skilled readers to understand each word they encounter faster, which makes them better readers and leads to more successful outcomes later in life. In this research project we were interested in how reader's proficiency in reading related skills affects the efficiency of their eye-movements during reading English as a first and second language. The results found that more proficient readers were found to have a lighter penalty to the speed of their reading when fixating their eyes farther away from the optimal position in words. Additionally, the results demonstrated that proficiency in reading related skills is a better indicator of the efficient eye-movement behavior than native language of the reader.

Identiferoai:union.ndltd.org:mcmaster.ca/oai:macsphere.mcmaster.ca:11375/28822
Date January 2023
CreatorsGnetov, Daniil
ContributorsKuperman, Victor, Cognitive Science of Language
Source SetsMcMaster University
LanguageEnglish
Detected LanguageEnglish
TypeThesis

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