Lambda waves associated with offset of saccades: a subject with large lambda waves.

The temporal relationship between the lambda wave and the saccade was investigated in a subject with large amplitude lambda waves. The peak latency of the lambda wave from onset of the saccade was increased in proportion to increase of the saccade duration while the latency from offset was constant. The result showed that the lambda wave was associated with offset of the saccade rather than onset of it. It is suggested that the lambda wave might be the evoked response elicited by the afferent inflow beginning a fixation.