A Sensor Positioning System for Functional Near-Infrared Neuroimaging. - Ping He; Betty Yang; Sarah Hubbard; Justin Estepp; Glenn F. Wilson (HCI (16), 2007)

Physiological cognitive state assessment: Applications for designing effective human-machine systems. - Justin R. Estepp; James C. Christensen (EMBC, 2011)

An assessment of non-stationarity in physiological cognitive state assessment using artificial neural networks. - Justin R. Estepp; Samantha L. Klosterman; James C. Christensen (EMBC, 2011)

The effects of day-to-day variability of physiological data on operator functional state classification. - James C. Christensen; Justin Estepp; Glenn F. Wilson; Christopher A. Russell (NeuroImage, 2012)

Evaluation of Subjective and EEG-Based Measures of Mental Workload. - Gregory J. Funke; Benjamin A. Knott; Vincent F. Mancuso; Adam J. Strang; Justin Estepp; Lauren Menke; Rebecca Brown; Allen Dukes; Brent Miller (HCI (28), 2013)

Coadaptive Aiding and Automation Enhance Operator Performance. - James C. Christensen; Justin Estepp (Hum. Factors, 2013)

Recovering pulse rate during motion artifact with a multi-imager array for non-contact imaging photoplethysmography. - Justin R. Estepp; Ethan B. Blackford; Christopher M. Meier (SMC, 2014)

A survey of remote optical photoplethysmographic imaging methods. - Daniel J. McDuff; Justin R. Estepp; Alyssa M. Piasecki; Ethan B. Blackford (EMBC, 2015)

Effects of frame rate and image resolution on pulse rate measured using multiple camera imaging photoplethysmography. - Ethan B. Blackford; Justin R. Estepp (Biomedical Applications in Molecular, Structural, and Functional Imaging, 2015)

Measuring pulse rate variability using long-range, non-contact imaging photoplethysmography. - Ethan B. Blackford; Alyssa M. Piasecki; Justin R. Estepp (EMBC, 2016)

Day-to-day variability in hybrid, passive brain-computer interfaces: Comparing two studies assessing cognitive workload. - Samantha L. Klosterman; Justin R. Estepp; Jason W. Monnin; James C. Christensen (EMBC, 2016)

The Impact of Video Compression on Remote Cardiac Pulse Measurement Using Imaging Photoplethysmography. - Daniel J. McDuff; Ethan B. Blackford; Justin R. Estepp (FG, 2017)

Spectral Estimation Methods for Evaluating iPPG Pulse Rate Variability. - Daniel McDuff; Ethan B. Blackford; Justin Estepp (EMBC, 2018)

Cross-Participant EEG-Based Assessment of Cognitive Workload Using Multi-Path Convolutional Recurrent Neural Networks. - Ryan G. Hefron; Brett J. Borghetti; Christine M. Schubert-Kabban; James C. Christensen; Justin Estepp (Sensors, 2018)

Fusing Partial Camera Signals for Noncontact Pulse Rate Variability Measurement. - Daniel J. McDuff; Ethan B. Blackford; Justin R. Estepp (IEEE Trans. Biomed. Eng., 2018)

Workload estimator using EEG and eye-tracking. - Ivan Tashev; Christine Beauchene; R. Michael Winters; Yu-Te Wang; David Johnston; Nathaniel Bridges; Justin R. Estepp (EMBC, 2024)