Smooth tracking of visual targets distinguishes lucid REM sleep dreaming and waking perception from imagination.
Nature Communications August 17, 2018 Stephen LaBerge, Benjamin Baird, Philip G Zimbardo
Humans are typically unable to engage in sustained smooth pursuit for imagined objects. However, it is unknown to what extent smooth tracking occurs for visual imagery during REM sleep dreaming. Here we examine smooth pursuit eye movements during tracking of a slow-moving visual target during lucid dreams in REM sleep. Highly similar smooth pursuit tracking was observed during both waking...