时间标签：数据日期 2026-10-31 · 生成时间 2026-11-01 05:30（Asia/Shanghai）｜ 检索窗口 PubMed edat 2026/10/28–2026/10/31 ｜ 情报发生日期 2026-10-31
研究问题
However, the contribution of specific, ecologically relevant orientations (e.g., cardinal orientations) remains unknown.；However, some studies have shown that infants instead look longer at highly familiar stimuli, such as images of their own mother compared with a stranger (e.g., Barrera & Maurer, ) or images of own-race (or familiar-race) individuals compared with other- (or unfamiliar-race) individuals (Kelly et al., ).
方法
Our simulations indicated that a final sample of 40 participants per age group would achieve a power of 0.8.；Families were recruited from two sources.；For Experiment (infants), we used birth records obtained by the California State Office of Vital Records to send parents information about our research in general, and parents interested in taking part in the research contacted us by phone, email, webform, or returning a postage-paid card with their contact information.；Infants were recruited from the suburban and urban regions surrounding the Sacramento Valley in two age groups: 5-months to 7-months and 10-months to 12-months (see Table for age distributions).
核心结论
Independent-samples t tests revealed that in the infant sample, the older age group, on average, made more fixations per trial, t(105) = 3.26, p = .001, and looked longer overall per trial, t(105) = 3.54, p < .001, compared with the younger group.；However, the older and younger infants did not significantly differ in the number of trials they completed (p = .98).；The younger and older toddlers did not significantly differ in the number of trials completed, the average number of fixations per trial, or the average overall looking per trial (p values > .12; see Table ). ‖ 结论：Together, these results demonstrate that the weight of different low-level visual features in attention engagement is not static but rather reorganizes substantially within infancy and toddlerhood, offering new insights into how the visual system prioritizes information during early development.
局限
(), and further suggest that visual statistical learning of the natural world may not only influence perceptual sensitivities but also attentional sensitivities.；Because environmental statistics and cortical architecture are confounded in typical development, it is unclear whether our observed effects reflect a sensitivity to visual diet, experience-independent neural structure, or an experience-dependent tuning of underlying structures.；Future research relating individual differences in visual diets to attentional patterns will be necessary to disentangle these competing influences.
对本项目的价值
★☆☆☆☆ 皮肤是唯一可直接局部给药、可活检、可影像量化的器官，最快可验证 senotherapeutic 概念。
全文来源
PMC JATS 全文（正文 52,312 字符，已过标题/DOI 逐字归属校验）
原文题录
- 英文标题：Edge structure influences infants' and toddlers' engagement with natural scenes.
- 期刊与标识：Atten Percept Psychophys · PMID 42955578 · DOI 10.3758/s13414-026-03357-x
A 级证据分级：A 级（同行评议人体研究）
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