Testing predictions of a neural process model of visual attention in infancy across competitive and non-competitive contexts

Spencer, John ORCID: https://orcid.org/0000-0002-7320-144X, Ross-Sheehy, Shannon and Eschman, Bret (2022) Testing predictions of a neural process model of visual attention in infancy across competitive and non-competitive contexts. Infancy, 27 (2). pp. 389-411. ISSN 1525-0008

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A key question in early development is how changes in neural systems give rise to changes in infants' behavior. We examine this question by testing predictions of a dynamic field (DF) model of infant spatial attention. We tested 5-, 7-, and 10-month-old infants in the Infant Orienting With Attention (IOWA) task containing the original non-competitive cue conditions (when a central stimulus disappeared before a cue onset) and new competitive cue conditions (when a central stimulus remained visible throughout the trial). This allowed testing of five model predictions: (1) that orienting accuracy would be higher and (2) reaction times would be slower for all competitive conditions; (3) that all infants would be slower to orient in the competitive conditions, though (4) older infants would show the strongest competition costs; and (5) that reaction times would be particularly slow for un-cued competitive conditions. Four of these five predictions were supported, and the remaining prediction was supported in part. We next examined fits of the model to the expanded task. New simulation results reveal close fits to the present findings after parameter modification. Critically, developmental parameters of the model were not altered, providing support for the DF model's account of neuro-developmental change.

Item Type: Article
Additional Information: Acknowledgements: The authors would like to thank the research assistants and participating families who made this work possible. Funding for this study was provided by R01HD083287 awarded to J. Spencer. The authors declare no conflicts of interest with regard to the funding source for this study.
Uncontrolled Keywords: cognitive development,dynamic field theory,infancy,neural process models,orienting attention,spatial attention,pediatrics, perinatology, and child health,developmental and educational psychology ,/dk/atira/pure/subjectarea/asjc/2700/2735
Faculty \ School: Faculty of Social Sciences > School of Psychology
UEA Research Groups: Faculty of Social Sciences > Research Groups > Developmental Science
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Depositing User: LivePure Connector
Date Deposited: 04 Feb 2022 12:30
Last Modified: 23 Oct 2022 03:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/83287
DOI: 10.1111/infa.12457


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