Knowledge Center - Crew Endurance
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Welcome to the Crew Endurance Resources Library
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The 3/9 Circadian Watch Rotation
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The 6/18 Circadian Watch Rotation
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The 4/8 Circadian Watch Rotation
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The D5/N3 Circadian Watch Rotation
- Prior to Watch: Notify your watch supervisor, including the reason for fatigue (sickness, training and shipboard evolution, etc.) and request to switch watches. Watch supervisors will report the switch to the Senior Watch Officer.
- While on Watch: Notify your watch supervisor, so that a switch can be made promptly. If you are experiencing micro-sleeps or cannot stay awake, call
Reuters, February 2020, Lisa Rapaport
U.S.News & World Report, January 2020, Len Carter
SlEEP DOCTOR, December 2019, Dr. Michael Breus
SHAPE, November 2019, Mirel Zaman
ScienceAlert, November 2019, David Nield
WIRED, October 2019, Sara Harrison
The New York Times, October 2018, Tim Herrera
NavyTimes, October 2018, Geoff Ziezulewicz
U.S Naval Institute Proceedings Magazine, March 2018, Captain John Cordle USN (Ret)
LIVESTRONG, February 2018, Bryn Huntpalmer
U.S. Naval Institute, September 2017, Captain John Cordle USN (Ret)
The prize was awarded to three scientists for their work in the discovery of the mechanism of
circadian rhythms in all organisms
Reuters, September 2017, Marilynn Larkin
The Guardian, September 2017, Rachel Cooke
CNN Health, August 2017, Sandee LaMotte
United States Naval Institute Proceedings Magazine, July 2017, Machine Mate Nuclear Chief Jay Holley, USN.
Provides a great perspective on how important it is to give Sailors the opportunity to sleep
TIME, February 2017, Alice Park
U.S. Naval Institute Proceedings Magazine, August 2016, Captain John Cordle USN (Ret)
Huffington Post, July 2016, Sarah DiGiulio
Van Winkles, October 2015, Peter S. Green
U.S. Naval Institute, 30 August 2015, LCDR Katie Jacobson
National Public Radio, april 2014, Alan Yu
NavyTimes, October 2013, Sam Fellman
United States Naval Institute Proceedings Magazine, January 2013, Captain John Cordle USn
(Ret) and Dr. Nita Shattuck
This article won the Surface Navy Association Literary Award for 2013.
The SNA Literary Award recognizes the best professional article in any publication
addressing Surface Navy or surface warfare issues.
NavyTimes, June 2012, Gidget Fuentes and Tony Lombardo
Includes training for emergency responders to reduce the risks associated with long work
hours and information on how to cope with shiftwork
A nonprofit organization in the USA. Their mission is to improve public health and safety by
achieving understanding of sleep and sleep disorders, as well as to support sleep-related
education, research, and advocacy
Information on how to manage stress and fatigue levels
Information on driving while tired from NPS' Safety Training
Many resources on sleep and safety including a large number of videos and articles
Resources for managing sleep and fatigue
A site dedicated to exploring the positive benefits of sleep health
Resources on Total Force Fitness including the Performance Triad initiative started by the
Department of Defense and in trial phase at various military installations.
CBT-I: Cognitive Behavior Therapy for Insomnia
Chapter by Shattuck, N.L and Matsangas, P. in Vermetten, E., Germain, D. & Neylan, T.
(Eds.), Sleep and Combat related PTSD. Springer, 2018
Chapter by Shattuck, N.L., Matsangas, P., Mysliwiec, V., and Creamer, J.L. in Schnyer, D. 7
Matthews, M.D (Eds.), Human Performance Optimization: The Science and Ethics of
Enhancing Human Capabilities.Oxford University Press, New York
Chapter by Drillings, M., Knapp, B., and Shattuck, N.L., in D. Boehm-Davis, Durso, Lee,
(Eds.), The APA Handbook of Human Systems Integration. Washington, DC: American
Psychological Association. 2015
Chapter by Miller, N.L., Matsangas, P., and Kenney, A. in J. Laurence and M. D. Matthews
(Eds.), The Oxford Handbook of Military Psychology. New York: Oxford University Press, 2012.
Chapter by Miller, N.L., Matsangas, P. and Shattuck, L.G in P.A. Hancock and J.L Szalma
(Eds.),Performance Under Stress. Mahwah, NJ: Ashgate Publications, 2007
Chapter by Miller, N.L., Crowson., J.J., and Narkevicius, J.M. in H.R. Booher (Ed.),
Handbook of Human Systems Integration. New York: John Wiley and Sons, 2003
- Clifton, H.L., Matsangas, P., and Shattuck, N.L. (2020). Evaluation of a stress inoculation training program at the US Navy Surface Warfare Officer School. (Technical Report No. NPS-OR-20-001). Monterey, CA: Naval Postgraduate School.
- Shattuck, N.L., and Matsangas, P. (2018). Assessment of the utility of circadian-based watchstanding schedules for sailors working on the U.S. Navy surface ships. (Technical Report No. NPS-OR-19-001R). Monterey, CA: Naval Postgraduate School.
- Shattuck, L.G., Matsangas, P., Cox, B., Shattuck, N.L., Fletcher, C., Combs, E., Fosha, R., and Anglemyer, A. (2018). Physiological episodes in F/A-18 and T-45 aircrews: Report of survey results. (Technical Report No. NPS-OR-18-003R). Monterey, CA: Naval Postgraduate School.
- Matsangas, P. and Shattuck, N.L. (2018). Assessment of a novel 3-section fixed watchstanding schedule on the USS DETROIT (LCS-7). (Technical Report No. NPS-OR-18-002R). Monterey, CA: Naval Postgraduate School.
- Shattuck, N.L., and Matsangas, P. (2018). Assessment of the Sailor Evaluation Tool (SET). (Technical Report No. NPS-OR-18-004). Monterey, CA: Naval Postgraduate School.
- Matsangas, P. and Shattuck, N.L. (2018). Assessment of a novel 3hrs-on/3hrs-off/3hrs on/15hrs-off watchstanding schedule on the USS STOCKDALE (DDG-106). (Technical Report No. NPS-OR-18-002). Monterey, CA: Naval Postgraduate School.
- Matsangas, P., Shattuck, N.L., and Saitzyk, A. (2017). The Marine Corps Embassy Security Guard 2016 sleep survey: Analysis and comparison with 2012-2015 data. (Technical Report No. NPS-OR-17-002R). Monterey, CA: Naval Postgraduate School.
- Shattuck, N.L., Matsangas, P., Seagren, C., and Meredith I. (2017). LCS case study: The effect of shipboard manning levels on operational effectiveness and an analysis to improve unplanned loss management. (Technical Report No. NPS-OR-17-001R). Monterey, CA: Naval Postgraduate School.
- Shattuck, N.L. Matsangas, P., and Saitzyk, A. (2016). Work and rest patterns in Marine Corps Embassy Security Group: Promoting health and wellness through informed work schedules. (Technical Report No. NPS-OR-16-001R). Monterey, CA: Naval Postgraduate School.
- Shattuck, N.L. and Matsangas, P. (2015). Optimization of shipboard manning levels using Imprint Pro Forces module. (Technical Report No. NPS-OR-15-008). Monterey, CA: Naval Postgraduate School.
- Shattuck, N.L., Matsangas, P. and Brown, S. (2015). A comparison between the 5hrs-on/10hrs-off and 3hrs-on/9hrs-off watch standing schedules. (Technical Report No. NPS-OR-15-006). Monterey, CA: Naval Postgraduate School.
- Shattuck, N.L., Matsangas, P., Moore, J. and Wegemann, L. (2015). Prevalence of musculoskeletal symptoms and association with excessive daytime sleepiness and fatigue in the crew of a US Navy ship. (Technical Report No. NPS-OR-15-005). Monterey, CA: Naval Postgraduate School.
- Shattuck, N.L., Matsangas, P. and Powley, N. (2015). Sleep patterns, mood, psychomotor vigilance performance, and command resilience of watchstanders on the “five and dime” watchbill. (Technical Report No. NPS-OR-15-003). Monterey, CA: Naval Postgraduate School.
- Shattuck, N.L. & Matsangas, P. (2014). Work and rest patterns and psychomotor vigilance performance of crewmembers of the USS Jason Dunham: A comparison of the 3hrs-on/9hrs-off and 6hrs-on/6hrs-off watchstanding schedules. (Technical Report No. NPS-OR-14-004). Monterey, CA: Naval Postgraduate School.
- Matsangas, P. & McCauley, M. E. (2013). Motion-induced interruptions and postural equilibrium in linear lateral accelerations (Technical Report No. NPS-OR-13-005). Monterey, CA: Naval Postgraduate School.
- Matsangas (2013). The effect of mild motion sickness and sopite syndrome in multitasking cognitive performance, Ph.D. dissertation, Modeling, Virtual Environments and Simulation, Naval Postgraduate School.
- Miller, N.L., Shattuck, L.G., Tvaryanas, A. Matsangas, P. (2010). Effects of Sleep on Training Effectiveness in Soldiers at Fort Leonard Wood (Phase 1). (Technical Report No. NPS-OR-10-003). Monterey, CA: Naval Postgraduate School.
- Matsangas, P., McCauley, M.E. & Papoulias, F. (2010). Ship-Human Integrated Performance System (SHIPS). Technical Report NPS. Monterey, CA: Naval Postgraduate School.
- Miller, N.L., Shattuck, L.G., Tvaryanas, A. Matsangas, P. (2010). Effects of Sleep on Training Effectiveness in Soldiers at Fort Leonard Wood, Missouri. (Technical Report NPS-OR-10-011). Monterey, CA: Naval Postgraduate School.
- Matsangas, P., and McCauley, M.E., (2009). Human factors issues and vessel motion effects on the LCS ASW Mission Module. Technical Report. Prepared under LCS ASW E2E P-MPCE HSI Analysis Test (Report No. NSWCPC.2009.0003) for Naval Surface Warfare Center, Coastal Systems Station, Panama City, Florida
- Miller, N., Shattuck, L.G., and Matsangas, P. (2007). Fatigue in military operational environments: an annotated bibliography. (Technical Report No. NPS-OR-07-001). Monterey, CA: Naval Postgraduate School.
- McCauley, M.E., Matsangas, P., Pierce, E., Price, B., LaBreque, J., and Blankeship, J. (2007). Vessel Motion Effects on Human Performance aboard the FSF-1 Sea Fighter. Technical Report. Prepared from PMS-501, NSWC Panama City, Florida, and Naval Postgraduate School, Monterey, California, October 2007
- McCauley, M.E., Matsangas, P., and Miller, N.L. (2005). Motion and Fatigue Study in High Speed Vessel Operation: Phase 1 Report. Technical Report. Prepared for Naval Surface Warfare Center, Coastal Systems Station, Panama City, Florida
- McCauley, M.E. & Matsangas, P. (2004). Human Systems Integration and Automation Issues in Small Unmanned Aerial Vehicles. (Technical Report No. NPS-OR-04-008). Monterey, CA: Naval Postgraduate School. Prepared for Army/ NASA Rotorcraft Division
- Matsangas, P. (2004). A linear physiological visual-vestibular interaction model for the prediction of motion sickness incidence, Master’s thesis, Dept. Modeling, Virtual Environments and Simulation, and Dept. Operations Research, Naval Postgraduate School, 2004
- Matsangas, P., and Shattuck, N.L. (2019). Preliminary Assessment of a Novel Watchstanding Schedule for a Crew on a Small Surface Combatant of the United States Navy. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 63(1), 933-937, doi:10.1177/1071181319631005.
- Matsangas, P., Shattuck, N.L., Mortimore, K., Paghasian, C., and Greene, F. (2019). The 3-minute Psychomotor Vigilance Task (PVT) Embedded in a Wrist-worn Device: Time of Day Effects. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 63(1), 797-801, doi:10.1177/1071181319631144.
- Fosha, R.A., Shattuck, L.G., and Matsangas, P. (2019). Human-centered design elements derived from a small boat recovery task. Proceedings of the Technology, Systems and Ships Symposium, 18-20 June, Washington, DC, USA
- Shattuck, N.L., Matsangas, P., and Saitzyk, A. (2018). Improving Work and Rest Patterns of Military Personnel in Operational Settings with Frequent Unplanned Events. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 62(1), 772-776.
- Matsangas, P., and Shattuck, N.L. (2018). Agreement between the 3-minute Psychomotor Vigilance Task (PVT) Embedded in a Wrist-worn Device and the Laptop-based PVT. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 62(1), 666-670.
- Sjörs Dahlman, A., Matsangas, P., and Shattuck, N.L. (2017). The Effect of Habitual Exercise on Daytime Sleepiness and Mood of US Navy Sailors. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 61(1), 522-526.
- Ryan, A., Matsangas, P., Anglemyer, A., and Shattuck, N.L. (2017). Improving Sleep Attributes of Military Personnel in Operational Settings by Controlling Exposure to Blue Light. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 61(1), 906-910.
- Matsangas, P., and Shattuck, N.L. (2017). Exploring Sleep-related Habitability Issues in Berthing Spaces on U.S. Navy Ships. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 61(1), 450-454.
- Matsangas, P., Shattuck, N.L., Heinicke, C., and Dunn, J. (2017). Sleep Patterns in Mission IV of the Hawaii Space Exploration Analog and Simulation (HI-SEAS): A Pilot Study. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 61(1), 73-77.
- Shattuck, N.L., Shattuck, L.G. & Matsangas, P. (2016). Combat Effectiveness and Sleep Patterns in US Marines. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 60(1), 886-890.
- Shattuck, N.L. & Matsangas, P. (2016). Comparison of the 3/9 and 6/6 Watchstanding Schedules for Crewmembers of a U.S. Navy destroyer. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 60(1), 881-885.
- Matsangas, P. & Shattuck, N.L (2015). The effect of ship department on crew sleep patterns and psychomotor vigilance performance. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 59(1), 1182-1186.
- Brown, S., Matsangas, P. & Shattuck, N.L (2015). Comparison of a circadian-based and a forward rotating watch schedules on sleep, mood, and psychomotor vigilance performance. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 59(1), 1167-1171.
- Shattuck, N.L & Matsangas, P. (2015). Caffeinated beverage consumption rates and reported sleep in a U.S. Navy ship. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 59(1), 696-700.
- Shattuck, N.L, Matsangas, P. & Waggoner L. (2014). Assessment of a novel watchstanding schedule on an operational US Navy vessel. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 58(1), 2265-2269.
- Matsangas, P. & McCauley, M.E. (2014). Identification of motion sick individuals: A classification method accounting for non-specificity. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 58(1), 919-923.
- Matsangas, P. & McCauley, M.E. (2013). The effect of mild motion sickness and soporific symptoms on multitasking cognitive strategy. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 57(1), 788-792.
- Shattuck, N.L, Shattuck, L.G., Smith, C., Matsangas, P. (2013). Changes in reaction times and executive decision-making following exposure to waterborne motion. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 57(1), 1987-1991.
- Alfred, P., Boykin, G., Caldwell, L., Lieberman, H., Matsangas, P., Miller, N.L., Rice, V., and Wesensten, N. Sleep across military environments. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 54(11), 769-773.
- Matsangas, P., Johnston, J., McCauley, M.E., and Miller, N.L. (2010). Personnel physical activity levels on naval vessels – evidence for soporific and fatigue effects? Proceedings of the Human Performance at Sea Conference (HPAS), Glasgow, UK.
- Matsangas, P., McCauley, M.E., and Papoulias, F. (2009). Human Performance Standards for Ship Motion: A Review and a Preliminary Gap Analysis. Maritime Systems and Technology (MAST) 2009. 21 – 23 October, Stockholm, Sweden
- Pierce, ?., McCauley, M.E., Price, B., and Matsangas, P. (2008). Vessel motion influences on human performance and manual materials handling. Presented in Pacific 2008 International Maritime Conference (IMC), 29-31 January, Sydney, Australia
- McCauley, M.E., Matsangas, P., Pierce, E. (2008). Vessel Motion Effects on Human Performance aboard the FSF-1 Sea Fighter. Presented in Pacific 2008 International Maritime Conference (IMC), 29-31 January, Sydney, Australia
- McCauley, M.E., Pierce, E., and Matsangas, P. (2007). The High Speed Navy: Vessel Motion Influences on Human Performance. Presented in Human Systems Integration Symposium 2007, 16-19 March, Annapolis, USA
- Matsangas, P. & McCauley, M. E. (2005). A linear physiological visual-vestibular interaction model for the prediction of motion sickness incidence: Adaptation and Habituation Issues. Presented in Human Systems Integration Symposium 2005, 20-22 June, Arlington, Virginia, USA.
- Matsangas, P. & McCauley, M. E. (2005). A linear physiological visual-vestibular interaction model for the prediction of motion sickness incidence: Revised for Motion Detected by Peripheral Vision. In: Proceedings of the HCI International 2005. Vol. 1: Engineering Psychology, Health and Computer System Design. Mira Digital Publishing. 11th International Conference in Human-Computer Interaction, July 22-27, Las Vegas, NV USA.
- Matsangas, P & McCauley, M.E. (2005). Small Unmanned Aerial Vehicles: The way forward. Presented in Network Centric Warfare Conference 2005, 09-10 November, Athens, Greece
- McCauley, M.E. & Matsangas, P. (2005). Ship’s Motion Effects on Crew Performance: A Preliminary Analysis of Motion Induced Effects on High Speed Vessel (HSV). Presented in Network Centric Warfare Conference 2005, 09-10 November, Athens, Greece
- Shattuck, N.L., and Matsangas, P. (2019, 9—13 September). Quality of life at sea for day workers versus watchstanders. Presented in the 24th International Symposium on Shiftwork and Working Time, Coeur d’Alene, Idaho, USA.
- Shattuck, N.L., and Matsangas, P. (2019, 18—22 August). Circadian-based Watchstanding Schedules for Surface Ships: Preliminary results. Presented in the Military Health System Symposium (MHSRS), Kissimmee, FL.
- Shattuck, L., Matsangas, P., Cox, B.D., Shattuck, N.L., Fletcher, C., Combs, E., Fosha, R., and Anglemyer, A. (2018, 25 – 27 September). Physiological episodes in F/A-18 and T-45 aircrews: Report of survey results. Presented in the Big Data Summit III, Renton, WA.
- Combs, E., Fosha, R., Fletcher, C., Cox, B.D., Matsangas, P., Anglemyer, A., Shattuck, N., and Shattuck, L. (2018, 20 – 23 August). Naval jet aviators’ experience with symptoms associated with physiological episodes in-flight, post-flight, and on unplanned extended missions. Presented in the Military Health System Symposium (MHSRS), Kissimmee, FL.
- Shattuck, N.L., and Matsangas, P. (2018, 6 – 7 August). Autonomous Crew Operations Technical Interchange Meeting. NASA Ames Research Center, Moffett Field, CA.
- Matsangas, P. and Shattuck, N.L. (2016, 30 June – 03 July). Actigraphic and subjective quality of sleep at sea. Presented at the 1st South European Congress on Sleep Research, Athens, Greece.
- Shattuck, N.L., Matsangas, P., and Saitzyk, A. (2016). Work and Sleep Patterns in Military Shift Workers: Promoting Health and Wellness Through Informed Shift Schedules. Presented at the Department of Defense Human Factors Engineering Technical Advisory Group, Meeting 70, 11 May, NASA Langley Research Center, Hampton, VA, USA.
- Matsangas, P. and Shattuck, N.L. (2015, 31 October – 03 November). Environmental daylight exposure interferes with the sleep patterns of sailors working the 3hrs-on/9hrs-off watchstanding schedule at sea. Presented in the 7th World Congress of the World Sleep Federation, Istanbul, TR.
- Shattuck N.L. and Matsangas P. (2015, 17-20 August). The Ecology of Shiftwork in the United States Navy: A comparison of four watch standing schedules from a human performance perspective. Presented in the Military Health System Symposium (MHSRS), Fort Lauderdale,
- FL.Shattuck, N.L., and Matsangas, P. (2015, 26 – 30 July). Sleep and Performance in Operational Maritime Environments: Working Conditions at Sea. Presented in the 6th International Conference on Applied Human Factors and Ergonomics (AHFE), Las Vegas, NV.
- Matsangas, P. (2007). Simulation and Training in the Hellenic Navy. Presented at the Simulation and Training in Hellenic Armed Forces Conference, 27 June, Athens, Greece.
- McCauley, M.E., Pierce, E. and Matsangas, P. (2007). Vessel Motion Influences on Human Performance: The High Speed Navy. Presented at Department of Defense Human Factors Engineering Technical Advisory Group, Meeting 57, 14-17 May, Portsmouth, VA, USA.
- Matsangas, P. (2006). Prediction of Motion Sickness Incidence: Modeling Efforts based on Human Physiology. Presented in ABCD Meeting 2006 “Human Performance at Sea: Influence of Ship Motions on Biomechanics and Fatigue”, Panama City, Florida, USA, April 25-26
- Hasslen, S.R., Mysliwiec, V., Pruiksma, K.E., Peterson, A.L., Carrizales, F.A., Brundige, A., Taylor, D.J., Vanecek, R., Hansen, S., Foster, S.N., Young-McCaughan, S., Gerwell, K., Gill, J.,Matsangas, P., Mintz, J., & Brock, M.S.; for the STRONG STAR Consortium. (2019, 18—22 August). Evaluation of sleep quality in a military population: The Military Service Sleep Assessment (MSSA). Poster presented at the Military Health System Research Symposium (MHSRS), Kissimmee, FL.
- Moon, K.N., Clifton, H.L., Rock, M.D., Curtis, M., Matsangas, P., and Shattuck, N.L. (2019, 18—22 August). Use of high energy visible (HEV) light-emitting glasses to improve sleep and mood during 24-hour military operations. Poster presented at the Military Health System Symposium (MHSRS), Kissimmee, FL.
- Shattuck, N.L., Matsangas, P., Chawinga, Z., Clifton, H., Geiger, L., Hart, J., Weaver, M., Czeisler, C., and Barger, L. (2019, 18—22 August). Enhancing crew endurance in the United States Navy: Progress from the first year of a 3-year training project. Poster presented at the Military Health System Symposium (MHSRS), Kissimmee, FL.
- Mysliwiec, V., Brock, M., Pruiksma, K., Gill, J., Foster, S., Hansen, S., Cassidy, D., Vanecek, R., Matsangas, P., Mintz, J., Young-McCaughan, S., and Peterson, A. (2018, 20 – 23 August). Sleep Disorders in Military Women: Identifying Causal Factors and the Impact of Treatment on Psychological Health and Resilience. Poster presented at the Military Health System Symposium (MHSRS), Kissimmee, FL.
- Fosha, R., Combs, E., Fletcher, C., Cox, B.D., Matsangas, P., Anglemyer, A., Shattuck, N., and Shattuck, L. (2018, 20 – 23 August). Nutrition behaviors in United States Navy and Marine Corps F/A-18 and T-45 aircrew: Associations with prior experience of physiological episodes. Poster presented at the Military Health System Symposium (MHSRS), Kissimmee, FL.
- Matsangas, P. and Shattuck, N. L. (2018, 22 – 25 January). Sleep patterns, and mood states of crewmembers in 8-month mission v of the Hawaii Space Exploration Analog and Simulation (HI-SEAS): Preliminary results. Poster presented at the NASA Human Research Program Investigator’s Workshop (HRP IWS 2018), Galveston, TX.
- Dahlman, J., Matsangas, P., and Shattuck N.L. (2017, 27-30 August). Operational aspects on use of hypnotics and alertness medications (HAMs) in the U.S. Military. Poster presented at the Military Health System Symposium (MHSRS), Kissimmee, FL.
- Shattuck N.L., Matsangas P., and Sjörs Dahlman, A. (2017, 27-30 August). Validation of the Psychomotor Vigilance Task (PVT) in the Operational Environment: Exploring the Utility of Different Devices and the Effect of Environmental Factors. Poster presented at the Military Health System Symposium (MHSRS), Kissimmee, FL.
- Shattuck, N. L., Smith, K., Matsangas, P., and Dahlman, P. (2017, 23 – 26 January). Use of hypnotic and alertness medications (HAMs) in the U.S. military. Poster presented at the NASA Human Research Program Investigator’s Workshop (HRP IWS 2017), Galveston, TX.
- Capener, D., Mysliwiec, V., Brock, M., Walter, R., and Matsangas, P. (2016, 20 May). Sleep Disorders in Active Duty Females. Poster presented at the San Antonio Military Health System and Universities Research Forum (SURF 2016), San Antonio, TX.
- Gabehart, R.J., Skornyakov, E., Shattuck, N.L., Sparrow, A.R., Matsangas, P., Riedy, S., Layton, M.E. and Van Dongen, H.P.A. (2015). Sleep Duration in Simulated Navy Watchstanding Schedules. Poster presented at the 10th Annual Inland Northwest Research Symposium, March 6, Spokane, Washington.
- Sparrow, A.R., Smith, C., Skornyakov, E., Shattuck, N.L., Matsangas, P., and Van Dongen, H.P.A. (2015). Pilot Study of Team Communication in Simulated Navy Watchstanding Schedules. Poster presented at the 10th Annual Inland Northwest Research Symposium, March 6, Spokane, Washington.
- Mysliwiec, V., Capaldi, V., Gill, J., Baxter, T., O’Reilly, B., Matsangas, P., Roth, B.J. (2014). Adherence to Positive Airway Pressure Treatment in U.S. Military Personnel with Sleep Apnea Improves Sleepiness, Sleep Quality, and Depressive Symptoms. Poster presented at the Madigan Research Day, Tacoma, Washington.
- Anderson, D., Mysliwiec, V., Matsangas, P., Lee, M., Bothwell, N., Baxter, T., and Roth, B. (2012, November). Polysomnographic Variables Describing Comorbid Insomnia and Mild Obstructive Sleep Apnea in Military Personnel as Revealed by Cluster Analysis. Poster presented at the Tri-service American College of Physicians (ACP), Bethesda, Maryland.
- Miller, N.L., Shattuck, L.G., and Matsangas, P. (2007, May). Sleep Patterns and Performance: Results from Two Years of a Four Year Longitudinal Study of Men and Women Enrolled at the United States Military Academy. Poster presented at the International School on Mind, Brain, and Education, 2nd Course: “Chronoeducation, Basic and applied topics on biological rhythms and learning”, May 22-26, 2007, Erice, Italy.
- Shattuck, N.L. and Matsangas, P. (2020). Eating behaviors in Sailors of the United States Navy: Meal-to-sleep intervals. Nutrition and Health, Doi: 10.1177/0260106020960878.
- Shattuck, N.L. and Matsangas, P. (2020). Does the quality of life differ for shift workers compared to day workers? Chronobiology International, Doi: 10.1080/07420528.2020.1810062.
- Matsangas, P. and Shattuck, N.L. (2020). Sleep quality, occupational factors, and psychomotor vigilance performance in U.S. Navy sailors. Sleep, 43(12), Doi: 10.1093/sleep/zsaa118.
- Matsangas, P. and Shattuck, N.L. (2020). Hand-held and wrist-worn field-based PVT devices versus the standardized laptop PVT. Aerospace Medicine and Human Performance, 91(5), 409-415. Doi: 10.3357/AMHP.5567.2020.
- Matsangas, P. and Shattuck, N.L. (2020). Habitability in berthing compartments and well-being of sailors working on United States Navy surface ships. Human Factors. Doi: 10.1177/0018720820906050
- Matsangas, P., Shattuck, N.L., and Saitzyk, A. (2020) Sleep-related practices, behaviors, and difficulties in deployed active duty service members performing security duties. Behavioral Sleep Medicine. 18(2), 262-274. Doi: 10.1080/15402002.2019.1578771
- Foster, S.N., Hansen, S.L., Scalzitti, N.J., Matsangas, P., Moore, B.A., and Mysliwiec, V. (2020). Residual excessive daytime sleepiness in patients with obstructive sleep apnea treated with positive airway pressure therapy. Sleep and Breathing. 24(1), 143-150. Doi: 10.1007/s11325-019-01830-6
- Matsangas, P., Shattuck, N.L., and Saitzyk, A. (2020) Sleep-related practices, behaviors, and difficulties in deployed active duty service members performing security duties. Behavioral Sleep Medicine. 18(2), 262-274. Doi: 10.1080/15402002.2019.1578771
- Hurlston, A., Foster, S. Creamer, J., Brock, M.S., Matsangas, P., and Mysliwiec, V. (2019). The Epworth Sleepiness Scale in service members with sleep disturbances. Military Medicine, 184(11-12), e701–e707. Doi:10.1093/milmed/usz066
- Matsangas, P., and Mysliwiec, V. (2018). The Utility of the Pittsburgh Sleep Quality Index in U.S. Military Personnel. Military Psychology, 30(4), 360-369. Doi.org/10.1080/08995605.2018.1478547
- Capener, D.C., Brock, M.S., Hansen, S.L., Matsangas, P., and Mysliwiec, V. (2018). An initial report of sleep disorders in women in the U.S. military. Military Medicine, 183(9-10), e266-e271. Doi.org/10.1093/milmed/usx116
- Creamer, J.L., Brock, M.S., Matsangas, P., Motamedi, V., and Mysliwiec, V. (2018). Nightmares in United States Military Personnel with Sleep Disturbances. Journal of Clinical Sleep Medicine, 14(3), 419-426. Doi: 10.5664/jcsm.6990.
- Motamedi, V., Kanefsky, R., Matsangas, P., Mithani, S., Jeromin, A., Brock, M., Mysliwiec, V., Gill, J. (2018). Elevated tau and interleukin-6 concentrations in young adults with obstructive sleep apnea. Sleep Medicine, 43, 71-76. Doi: 10.1016/j.sleep.2017.11.1121.
- Foster, S.N., Hansen, S.L., Capener, D.C., Matsangas, P., and Mysliwiec, V. (2017). Gender Differences in Sleep Disorders in the U.S. Military. Sleep Health, 3(5), 336-341. Doi: 10.1016/j.sleh.2017.07.015
- Shattuck, N.L. and Matsangas, P. (2017). Sunlight exposure, work hours, caffeine consumption, and sleep duration in an operational naval environment. Aerospace Medicine and Human Performance, 88(6), 579-585. Doi: 10.3357/AMHP.4721.2017.
- Källhammer, J-E., Smith, K., and Matsangas, P. (2017). Modeling ratings of in-vehicle alerts to pedestrian by leveraging field operational tests data in a controlled laboratory study. Transportation Research Part F: Traffic Psychology and Behaviour. 46(Part B), 413-425. Doi: 10.1016/j.trf.2016.06.021.
- Skornyakov, E., Shattuck, N.L., Winser, M.A, Matsangas, P., Sparrow, A.R., Layton, M.E., Gabehart, R.J., Van Dongen, H.P.A. (2017). Sleep and Performance in Simulated Navy Watch Schedules. Accident Analysis & Prevention. 99(part B), 422-427. Doi: 10.1016/j.aap.2015.11.021.
- Matsangas, P., Shattuck, N.L., and Brown, S. (2017). Preliminary validation study of the 3-minute wrist-worn psychomotor vigilance test. Behavioral Research Methods, 49(5), 1792-1801. Doi:10.3758/s13428-016-0821-2.
- Matsangas, P. and Shattuck, N.L. (2016). Discriminating between fatigue and sleepiness in the naval operational environment. Behavioral Sleep Medicine. Doi: 10.1080/15402002.2016.1228645.
- Shattuck, N.L., Matsangas, P., Moore, J., and Wegemann, L. (2016). Prevalence of musculoskeletal symptoms, excessive daytime sleepiness and fatigue in the crewmembers of a U.S. Navy ship. Military Medicine, 181(7), 655-62. Doi: 10.7205/MILMED-D-15-00279.
- Shattuck, N.L. and Matsangas, P. (2016). Operational assessment of the 5-h on/10-h off watchstanding schedule on a US Navy ship: Sleep patterns, mood, and psychomotor vigilance performance of crewmembers in the nuclear reactor department. Ergonomics, 59(5), 657-664. Doi: 10.1080/00140139.2015.1073794
- Sparrow, A.R., Smith, C., Skornyakov, E., Shattuck, N.L., Matsangas, P. & Van Dongen, H.P.A. (2015). A pilot study of team communication in simulated Navy watch schedules. Sleep-Wake Research in The Netherlands, 26, 48-51.
- Mysliwiec, V., Matsangas, P., Gill, J., Baxter, T., O’Reilly, B., Collen, J.F., and Roth, B.J. (2015). A Comparative Analysis of Sleep Disordered Breathing in Active Duty Service Members with and without Combat-Related Post-Traumatic Stress Disorder. Journal of Clinical Sleep Medicine, 11(12), 1393-1401. Doi: 10.5664/jcsm.5272.
- Mysliwiec, V., Matsangas, P., Baxter, T. and Shattuck, N.L. (2015). An Unusual Circadian Rhythm in an Active Duty Service Member. Sleep and Biological Rhythms, 14(1), 113-115. Doi:10.1007/s41105-015-0003-0.
- Matsangas, P., Shattuck, N.L. and McCauley, M.E. (2015). Sleep duration in rough sea conditions. Aerospace Medicine and Human Performance, 86(10), 901-906. Doi: 10.3357/AMHP.4250.2015.
- Matsangas, P. and McCauley, M.E. (2015). Modeling the effect of days underway and environmental motion on crew physical activity on naval vessels. Naval Engineers Journal, 127(4), 49-57.
- Mysliwiec, V., Gill, J., Matsangas, P., Baxter, T., Barr, T. and Roth, B.J. (2015). IGF-1: A Potential Biomarker for Efficacy of Sleep Improvement with Automatic Airway Pressure Therapy for Obstructive Sleep Apnea? Sleep and Breathing, 19(4), 1221-1228. doi: 10.1007/s11325-015-1142-x.
- Shattuck, N.L., Matsangas, P., Eriksen, E. and Kulubis, S. (2015). Comparison of Two Watch Schedules for Personnel at the White House Military Office President’s Emergency Operations Center. Human Factors, 57(5), 864-878. doi: 10.1177/0018720815576434.
- Shattuck, N.L., and Matsangas, P. (2015). A 6-month assessment of sleep during naval deployment: A case study of a Commanding Officer. Aerospace Medicine and Human Performance. 86(5), 481-485. Doi: 10.3357/AMHP.4140.2015.
- Mysliwiec, V., Capaldi, V.F., Gill, J., Baxter, T., O’Reilly, B.M., Matsangas, P., Roth, B.J. (2015). Adherence to Positive Airway Pressure Therapy in U.S. Military Personnel with Sleep Apnea Improves Sleepiness, Sleep Quality and Depressive Symptoms. Military Medicine, 180(4), 475-482. Doi: 10.7205/MILMED-D-14-00197.
- Shattuck, N.L., and Matsangas, P. (2015). Psychomotor Vigilance Performance Predicted by Epworth Sleepiness Scale Scores in an Operational Setting with the United States Navy. Journal of Sleep Research, 24(2), 174-180. Doi: 10.1111/jsr.12243.
- Mysliwiec, V., Matsangas, P., Baxter, T., McGraw L., Bothwell, N. and Roth, B. (2014). Comorbid insomnia and obstructive sleep apnea in military personnel: Correlation with polysomnographic variables. Military Medicine, 179(3), 294-300. Doi: 10.7205/MILMED-D-13-00396.
- Matsangas, P. and McCauley, M.E. (2014). Yawning as a behavioral marker of mild motion sickness and sopite syndrome. Aviation, Space and Environmental Medicine. 85(6), 658-661.
- Matsangas, P. and McCauley, M.E. (2014). Sopite syndrome: A revised definition. Aviation, Space and Environmental Medicine, 85(6), 672-673.
- Matsangas, P., McCauley, M.E. and Becker, W. (2014). The effect of mild motion sickness and sopite syndrome in multitasking cognitive performance. Human Factors, 56(6), 1124-1135. Doi: 10.1177/0018720814522484.
- Matsangas, P., McCauley, M.E., Gehl, G., Kiser, J., Bandstra, A., Blankenship, J. and Pierce, E. (2014). Motion induced interruptions and postural equilibrium in linear lateral accelerations. Ergonomics, 57(5), 679-692. doi: 10.1080/00140139.2014.897373.
- Matsangas, P. and McCauley, M.E. (2013). The association between transient lateral postural perturbations and upper limbs active movements. Occupational Ergonomics, 11(4), 123-136. Doi: 10.3233/OER-140214.
- Miller, N.L., Shattuck, L.G., and Matsangas, P. (2011). Sleep and Fatigue Issues in Continuous Operations: A Survey of U.S. Army Officers. Behavioral Sleep Medicine, 9(1), 53-65. Doi: 10.1080/15402002.2011.533994.
- Miller N.L., Shattuck L.G., and Matsangas P. (2010). Longitudinal study of sleep patterns of United States Military Academy cadets. Sleep, 33(12), 1623-1631.
- Miller, N.L., Shattuck, L.G., Matsangas, P., and Dyche, J. (2008). Sleep Patterns and Academic Performance in U.S. Military Training and Education Programs. Mind, Brain, and Education, 2(1), 29-33. Doi: 10.1111/j.1751-228X.2008.00026.x.
- McCauley, M.E., Pierce, E., and Matsangas, P. (2007). The High Speed Navy: Vessel Motion Influences on Human Performance. Naval Engineers Journal, 119(1), 35-44.
- Villarreal, B., Foster, S., Hansen, S., Brock, M., Sanchez, H., Gerwell, K., Carrizales, F., Matsangas, P., Peterson, A., Pruiksma, K., Mysliwiec, V. (2020). Sleep disorders in female military personnel. Sleep, 43(Abstract Supplement), A327. Doi: 10.1093/sleep/zsaa056.856.
- Shattuck, N.L., and Matsangas, P. (2020). Gender Differences in Sailor Well-being, Sleep-related Behaviors, and Psychomotor Vigilance Performance in the United States Navy. Sleep, 43(Abstract Supplement), A313. Doi: 10.1093/sleep/zsaa056.817.
- Shattuck, N.L., and Matsangas, P. (2020). Differences in well-being in dayworkers compared to shift workers: A study of United States Navy Sailors. Sleep, 43(Abstract Supplement), A295. Doi: 10.1093/sleep/zsaa056.772.
- Sanchez, H.O., Mysliwiec, V., Froese, R.E., Creamer, J.L., Matsangas, P., Foster, S.N., Hansen, S.L., and Brock, M.S., (2020). Clinical and Polysomnographic Features of Trauma Associated Sleep Disorder (TASD). Sleep, 43(Abstract Supplement), A305. Doi: 10.1093/sleep/zsaa056.799.
- Shattuck, L., Matsangas, P. (2019). Culture change in the US Navy: From data collection to mandated policies. Sleep Science, 12(Supplement 3), 63-64.
- Shattuck, N.L., Shattuck, L.G., and Matsangas, P. (2019). Sleepiness and fatigue in Cadets at the U.S. Military Academy: Preliminary results from a 10-year follow-on study. Sleep, 42(Abstract Supplement), A93-A94.
- Cox, B.D., Matsangas, P., Shattuck, L.G., and Shattuck, N.L. (2019). Explaining the increase in reported physiological episodes: Perceptions among naval jet aviators. Aerospace Medicine and Human Performance, 90(3), 199.
- Foster, S., Mysliwiec, V., and Matsangas, P. (2018). Excessive daytime somnolence in patients with obstructive sleep apnea adequately treated with positive airway pressure. Sleep, 41(Abstract Supplement), A193.
- Hurlston, A., Foster, S., Jennifer, C., Mysliwiec, V., Brock, M.S., and Matsangas, P. (2018). The Utility of the Epworth Sleepiness Scale in U.S. Military Personnel with Sleep Disturbances. Sleep, 41(Abstract Supplement), A137.
- Shattuck, N.L., and Matsangas, P. (2018). The Effect of Sleep on Mood of U.S. Navy Sailors. Sleep, 41(Abstract Supplement), A68.
- Shattuck, N.L., and Matsangas, P. (2018). Personality traits and sleep-related problems in crewmembers of the Hawaii Space Exploration Analog and Simulation (HI-SEAS). Aerospace Medicine and Human Performance, 89(3), 254-255.
- Foster, S., Capener, D., Brock, M.S., Matsangas, P. and Mysliwiec, V. (2017). Gender differences in sleep disorders and service-associated illnesses between active duty male and female military personnel. Sleep, 40(Abstract Supplement), A305-A306.
- Matsangas, P., and Shattuck, N.L. (2017). Prevalence of Insomnia and Excessive Daytime Sleepiness in US Navy Sailors. Sleep, 40(Abstract Supplement), A64.
- Shattuck, N.L., and Matsangas, P. (2017). Work and sleep patterns in military shift workers: Promoting health and wellness through informed shift schedules. Sleep, 40(Abstract Supplement), A63-A64.
- Shattuck, N.L., and Matsangas, P. (2017). Prevalence of excessive daytime sleepiness, psychomotor vigilance performance and sleep habits of active duty naval personnel during shipboard operations. Abstract presented in the 88th Scientific Meeting of the Aerospace Medical Association (ASMA), Denver, CO.
- Shattuck, N.L. & Matsangas, P. (2017). Comparing the work and rest hours of United States Navy Sailors with existing maritime regulations. Abstract presented at the Tenth International Conference on Managing Fatigue, San Diego, CA.
- Capener, D.C., Brock, M.S., Walter, R.J., Matsangas, P. and Mysliwiec, V. (2016). Sleep Disorders in Active Duty Females. Sleep, 39(Abstract Supplement), A364.
- Mysliwiec, V., Matsangas, P. and Baxter, T. (2016). The utility of the Pittsburgh Sleep Quality Index in U.S. Military Personnel. Sleep, 39(Abstract Supplement), A381.
- Matsangas, P. and Shattuck, N.L. (2016). Sleep quality in crewmembers of US Navy ships while underway. Sleep, 39(Abstract Supplement), A98-A99.
- Shattuck, N.L., Matsangas, P., Saitzyk, A. and Aldridge, E. (2016). Reported Sleep Problems and Practices in Active Duty Military Members During Deployment. Sleep, 39(Abstract Supplement), A71-A72.
- Brown, S. Matsangas, P. and Shattuck N.L. (2015). Is A Sailor’s Life for you? Aches And pains of U.S. Navy Sailors. Sleep, 38(Abstract Supplement), A89.
- Shattuck N.L. and Matsangas P. (2015). A Comparison of Sleep and Performance of U.S. Navy Sailors on Four Different Shiftwork Schedules. Sleep, 38(Abstract Supplement), A130.
- Capaldi, V. F., Mysliwiec, V., Gill, J., Baxter, T., Roth, B. J., & Matsangas, P. (2015). Adherence to positive airway pressure therapy in U.S. military personnel with sleep apnea improves sleepiness, sleep quality and depressive symptoms. Sleep, 38(Abstract Supplement), A183.
- Skornyakov, E. Shattuck, N.L., Winser, M.A., Matsangas, P., Sparrow, A.R., Layton, M.E. and Van Dongen, H.P.A. (2015). Heart Rate Variability Measures of Watchstanding in Simulated Naval Watch Schedules. Sleep, 38(Abstract Supplement), A65.
- Gabehart, R. J., Skornyakov, E., Shattuck, N. L., Sparrow, A. R., Matsangas, P., Riedy, S., . . . Van Dongen, H. P. A. (2015). Sleep duration in two different Navy watchstanding schedules. Sleep, 38(Abstract Supplement), A87.
- Matsangas, P., Shattuck, N.L. and McCauley, M.E. (2015, February). Sleep in motion conditions: The sine qua non step for the next generation of sleep models predicting performance at sea. Presented in the Fatigue Modeling for Complex Environments Workshop, Oklahoma City, OK.
- Shattuck N.L. and Matsangas P. (2015, February). Challenges and limitations of sleep and performance data collected in operational environments: Implications for improving fatigue models. Presented in the Fatigue Modeling for Complex Environments Workshop, Oklahoma City, OK.
- Shattuck N.L., Waggoner L.B., Young R.L., Smith C.S. and Matsangas P. (2014). Shiftwork practices in the United States Navy: A study of sleep and performance in watchstanders aboard the USS Jason Dunham. Sleep, 37(Abstract Supplement), A78.
- Matsangas, P. and Miller, N.L. (2006). The Effects of Ship Motion on the Sleeping Patterns of Crewmembers aboard a High Speed Naval Vessel. Sleep, 29(Abstract Supplement), A126.
