期刊
CHILD DEVELOPMENT
卷 90, 期 4, 页码 1413-1423出版社
WILEY
DOI: 10.1111/cdev.13198
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资金
- Swedish Research Council [2015-03670]
- Stiftelsen Riks-bankens Jubileumsfond [NHS14-1802: 1]
- Strategic Research Area Neuroscience at Karolinska Institutet (StratNeuro)
- Swedish Research Council [2015-03670] Funding Source: Swedish Research Council
- Swedish Foundation for Humanities and Social Sciences [NHS14-1802:1] Funding Source: Swedish Foundation for Humanities and Social Sciences
The influence of arousal on visual attention was examined in 6.5-month-old infants (N = 42) in the context of a visual search task. Phasic increases in arousal were induced with brief sounds and measured with pupil dilation. Evidence was found for an inverted U-shaped relation between pupil dilation amplitude and visual orienting, with highest likelihood of a target fixation at intermediate levels of arousal. Effects were similar for facial stimuli and simple objects. Together, these results contribute to our understanding of the relation between arousal and attention in infancy. The study also demonstrates that infants have a bias to orient to human eyes, even when presented in isolation.
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