在生命的第一年,被训练的物体出现了竞争性的皮层优先级
Maeve R Boylan1, Anna-Lena Tebbe1, Jamie Newland1
1Department of Psychology, University of Florida, 32611.
概括
婴儿的物体识别能力随着年龄的增长而提高, 这项研究表明,经验塑造了视觉皮层的反应,
科学领域:
- 发展神经科学
- 认知心理学
- 视觉感知
背景情况:
- 在婴儿期识别物体至关重要,
- 早期的视觉体验塑造了注意力优先级.
- 了解婴儿大脑发育是认知科学的关键.
研究的目的:
- 研究婴儿对新物体的训练如何影响视皮质反应.
- 测试对象训练是否为处理训练刺激创造竞争优势.
- 研究与年龄相关的视觉处理和注意力偏差的变化.
主要方法:
- 在51名婴儿 (6, 9, 12个月) 和父母的横截面研究中.
- 婴儿通过书籍与新物体互动.
- 脑电图测量了受过训练的对象和未受训练的对象的静态视觉唤起潜力 (ssVEPs).
主要成果:
- 视野皮质反应显示受过训练和未受训练的物体之间存在年龄相关的竞争.
- 对受训物体的反应增加,而对未受训物体的反应随着年龄的增长而减少.
- 偏好受过训练的对象在9个月时出现,在12个月时加强.
结论:
- 对象的经验驱使婴儿对视皮资源的选择性优先考虑.
- 竞争性神经相互作用支持对象识别的发展.
- 通过婴儿大脑的早期对象学习形成了注意力偏差.
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