写信给盲人的思维眼
1Department of Vision & Cognition, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105 BA Amsterdam, Netherlands; Department of Integrative Neurophysiology, VU University, De Boelelaan 1085, 1081 HV Amsterdam, Netherlands; Department of Psychiatry, Academic Medical Center, Postbus 22660, 1100 DD Amsterdam, Netherlands.
Cell
|May 16, 2020
概括
研究人员通过用电极刺激视觉皮层, 探索恢复盲人的视力. 这项研究表明,通过有针对性的电刺激来创造形状的视觉感知,
科学领域:
- 神经科学
- 生物医学工程
- 眼科 眼科
背景情况:
- 全球上有数以百万计的人患有失明,
- 目前的人工视觉技术在视觉敏度和感知方面存在局限性.
- 视觉皮层是大脑的主要视觉处理中心.
研究的目的:
- 调查恢复盲人的基本视力是否可行.
- 要确定视觉皮层的电刺激是否能唤起视觉感知.
- 通过直接皮层刺激创造人工视觉的潜力.
主要方法:
- 在盲人参与者身上植入视觉皮层电极阵列.
- 将受控的电刺激模式传递到视觉皮层.
- 参与者报告视觉感觉和形状识别.
主要成果:
- 电刺激成功地唤起了参与者的视觉感知.
- 参与者可以通过皮质刺激来区分基本形状.
- 诱导的视觉感知与刺激参数相关.
结论:
- 视觉皮层的直接电刺激可以产生视觉感知.
- 这种方法为恢复盲人的视力提供了潜在的途径.
- 需要进一步的研究来完善更复杂的视觉体验的刺激技术.
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