在的视觉皮层中,自然主义图像结构的发育稳定的表现.
Gerick M Lee1, C L Rodríguez-Deliz1, Brittany N Bushnell1
1Center for Neural Science New York University New York, NY, USA 10003.
bioRxiv : the preprint server for biology
|March 11, 2024
概括
的视觉发育表明,对自然主义纹理的敏感性在25周后出现. 视觉皮层V1,V2和V4区域的神经反应很早成熟,随着视觉信息通过这些区域的进展,对自然结构的敏感性会增加.
科学领域:
- 神经科学是一个神经科学.
- 视觉发展 视觉发展
- 灵长类动物的视力
背景情况:
- 视觉感知的神经基础依赖于处理复杂的自然刺激.
- 了解视觉处理区域如何成熟对于理解典型和非典型的视觉发育至关重要.
研究的目的:
- 研究子对自然主义纹理视觉敏感性的发育轨迹.
- 在发育过程中,在不同视觉处理阶段 (V1,V2,V4,IT) 对自然结构的行为和神经敏感性进行比较.
主要方法:
- 行为实验测量了从16周到56周岁的子的自然敏感性.
- 从视觉区域V1,V2,V4和下皮层 (IT) 的神经元群记录,从20周开始.
- 使用的纹理刺激与当地的光谱内容相匹配,但在自然结构上有所不同.
主要成果:
- 对于自然主义纹理的行为敏感性在大约25周年龄时达到最大的一半.
- 在整个测试的发育期 (20-56周) 中,V1,V2,V4和IT的神经敏感性保持稳定.
- 神经对自然结构的敏感性呈现出从V1到V2到V4的层次上升,反映了成年人的模式. 信息技术表示的维度更像V4比V2.
结论:
- 子中的自然主义纹理的视觉处理在25周左右的行为成熟.
- 早期的视觉区域 (V1-V4) 从小就表现出对自然结构的稳定神经敏感性,在腹部流沿线的处理量增加.
- 下皮层 (IT) 显示了自然主义纹理的表示结构,即使在发育过程中,它也与V4等更高层次的视觉区域保持一致.
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