Brigo Francesco
Department of Neurological, Neuropsychological, Morphological, and Movement Sciences, Section of Neurology, University of Verona, Verona, Italy.
Am J Electroneurodiagnostic Technol. 2011 Jun;51(2):105-13.
Lambda waves are physiological, triangular shaped, sharp transients occurring over the occipital regions when eyes are open. Lambda waves occur with saccadic eye movements during visual scanning, disappearing when eyes are closed and in sleep. They are best elicited when subjects visually scan a complex picture, therefore seen during visual exploration of a brightly illuminated object or room. The expression of these waveforms seems to be secondary to a functional activation of a common region in the brain, probably localized within parieto-occipital region.
λ波是生理性的,呈三角形,在睁眼时出现在枕区的尖锐瞬态波。λ波在视觉扫描过程中随着眼球的快速扫视运动而出现,在闭眼和睡眠时消失。当受试者视觉扫描复杂图片时最容易引出λ波,因此在对明亮照明的物体或房间进行视觉探索时可以看到。这些波形的出现似乎继发于大脑中一个共同区域的功能激活,该区域可能位于顶枕区。