Brain Spatial Microstates of Human Spontaneous Alpha Activity in Relaxed Wakefulness, Drowsiness Period, and REM Sleep

Cyclic variations in EEG during sleep and their relation to eye movements, body motility, and dreaming

William C. Dement, Nathaniel Kleitman · Electroencephalography and Clinical Neurophysiology · 1957 · 1.9K citations

Medicine, Neurology, Neuroscience +16

Reference-free identification of components of checkerboard-evoked multichannel potential fields

Dietrich Lehmann, Wolfgang Skrandies · Electroencephalography and Clinical Neurophysiology · 1980 · 1.6K citations

Medicine, Neurobiology, Neuroscience +14

EEG alpha map series: brain micro-states by space-oriented adaptive segmentation

Dietrich Lehmann, Hisaki Ozaki, Ivan Pal · Electroencephalography and Clinical Neurophysiology · 1987 · 927 citations

Medicine, Neurobiology, Neuroscience +12

Brain electric microstates and momentary conscious mind states as building blocks of spontaneous thinking: I. Visual imagery and abstract thoughts

Dietrich Lehmann, Werner Strik, B. Henggeler et al. · International Journal of Psychophysiology · 1998 · 431 citations

Life Sciences, Neuroscience, Psychology +17

Mental activity at sleep onset.

David Foulkes, G Vogel · Journal of Abnormal Psychology · 1965 · 320 citations

Life Sciences, Neuroscience, Psychology +5