Disrupted directed connectivity along the cingulate cortex determines vigilance after sleep deprivation. - Giovanni Piantoni; Bing Leung Patrick Cheung; Barry D. Van Veen; Nico Romeijn; Brady Alexander Riedner; Giulio Tononi; Ysbrand D. van der Werf; Eus J. W. van Someren (NeuroImage, 2013)

The Mental Machine: Classifying Mental Workload State from Unobtrusive Heart Rate-Measures Using Machine Learning. - Roderic H. L. Hillege; Julia C. Lo; Christian P. Janssen; Nico Romeijn (HCI (34), 2020)