Pagán, A., Degno, F., Milledge, S. V., Kirkden, R. D., White, S. J., Liversedge, S. P. and Paterson, K. B., 2025. Aging and word predictability during reading: Evidence from eye movements and fixation-related potentials. Attention, Perception, & Psychophysics. (In Press)
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DOI: 10.3758/s13414-024-02981-9
Abstract
The use of context to facilitate the processing of words is recognized as a hallmark of skilled reading. This capability is also hypothesized to change with older age because of cognitive changes across the lifespan. However, research investigating this issue using eye movements or event-related potentials (ERPs) has produced conflicting findings. Specifically, whereas eye-movement studies report larger context effects for older than younger adults, ERP findings suggest that context effects are diminished or delayed for older readers. Crucially, these contrary findings may reflect methodological differences, including use of unnatural sentence displays in ERP research. To address these limitations, we used a coregistration technique to record eye movements (EMs) and fixation-related potentials (FRPs) simultaneously while 44 young adults (18–30 years) and 30 older adults (65+ years) read sentences containing a target word that was strongly or weakly predicted by prior context. Eye-movement analyses were conducted over all data (full EM dataset) and only data matching FRPs. FRPs were analysed to capture early and later components 70–900 ms following fixation-onset on target words. Both eye-movement datasets and early FRPs showed main effects of age group and context, while the full EM dataset and later FRPs revealed larger context effects for older adults. We argue that, by using coregistration methods to address limitations of earlier ERP research, our experiment provides compelling complementary evidence from eye movements and FRPs that older adults rely more on context to integrate words during reading.
Item Type: | Article |
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ISSN: | 1943-3921 |
Uncontrolled Keywords: | Cognitive aging; Word predictability; Context effects; Eye movements; Fixated-related potentials; Reading |
Group: | Faculty of Science & Technology |
ID Code: | 40690 |
Deposited By: | Symplectic RT2 |
Deposited On: | 16 Jan 2025 15:13 |
Last Modified: | 31 Jan 2025 08:27 |
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