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Sensory cue combination in children under 10 years of age.

Negen, James and Chere, Brittney and Bird, Laura and Taylor, Ellen and Roome, Hannah and Keenaghan, Samantha and Thaler, Lore and Nardini, Marko (2019) 'Sensory cue combination in children under 10 years of age.', Cognition, 193 . p. 104014.


Cue combination occurs when two independent noisy perceptual estimates are merged together as a weighted average, creating a unified estimate that is more precise than either single estimate alone. Surprisingly, this effect has not been demonstrated compellingly in children under the age of 10 years, in contrast with the array of other multisensory skills that children show even in infancy. Instead, across a wide variety of studies, precision with both cues is no better than the best single cue – and sometimes worse. Here we provide the first consistent evidence of cue combination in children from 7 to 10 years old. Across three experiments, participants showed evidence of a bimodal precision advantage (Experiments 1a and 1b) and the majority were best-fit by a combining model (Experiment 2). The task was to localize a target horizontally with a binaural audio cue and a noisy visual cue in immersive virtual reality. Feedback was given as well, which could both (a) help participants judge how reliable each cue is and (b) help correct between-cue biases that might prevent cue combination. Crucially, our results show cue combination when feedback is only given on single cues – therefore, combination itself was not a strategy learned via feedback. We suggest that children at 7–10 years old are capable of cue combination in principle, but must have sufficient representations of reliabilities and biases in their own perceptual estimates as relevant to the task, which can be facilitated through task-specific feedback.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Publisher statement:© 2019 This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Date accepted:19 June 2019
Date deposited:20 June 2019
Date of first online publication:11 July 2019
Date first made open access:11 July 2020

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