Mach band sign: an optical illusion
作者: Ragesh PanikkathDeepa Panikkath
作者单位: 1From the Department of Internal Medicine, Texas Tech University Health Sciences Center School of Medicine, Lubbock, Texas.
刊名: Baylor University Medical Center Proceedings, 2014, Vol.27 (4), pp.364-365
来源数据库: Baylor University Medical Center Proceedings
英文摘要: The chest radiograph of a 63-year-old woman who was found unresponsive was concerning for pneumopericardium, but lacked the other corroborative features suggestive of pneumopericardium. None of the follow-up chest radiographs showed evidence of air around the heart. The radiolucent shadow that mimicked pneumopericardium in this case was due to an artifact known as Mach band sign, an illusion created by lateral inhibition in the light receptors in the retina.
全文获取路径: Baylor Health Care 

  • optical 光学的
  • illusion 错觉