University of Michigan
U-M Depression Center

 

 

The Sleep and Chronophysiology Laboratory

The Sleep and Chronophysiology Laboratory: Faculty and staff

 

Faculty

Roseanne Armitage, Ph.D.

Robert F. Hoffmann, Ph.D.

J. Todd Arnedt, Ph.D.

Deirdre A. Conroy, Ph.D.

 

Roseanne Armitage, Ph.D.
Director of the Sleep and Chronophysiology Laboratory

Roseanne Armitage, Ph.D.Dr. Armitage received her MA and PhD degrees in sleep electrophysiology at Carleton University in 1980 and 1986 and completed a post-doctoral fellowship at the University of Ottawa in Psychophysiology and evoked potential research. Dr. Armitage joined the faculty at the University of Texas Southwestern Medical Center at Dallas in 1988 to develop a research program in sleep and depression research. She was Director of the UTSW Sleep Study Unit from 1992-2003 and served on the faculty of the Departments of Psychiatry and Psychology, was Clinical Faculty at the Dallas VAMC and an Allied Health Professional at Zale Lipshy Hospital. She joined the University of Michigan Faculty in 2003. Currently, Dr. Armitage is the Director of the Sleep and Chronophysiology Laboratory and Professor in the Department of Psychiatry. She is also an Adjunct Professor in Psychology.

Dr. Armitage is a member of numerous International Professional Societies and has served on the Board of Directors and educational tasks forces of a number of these societies. She has held numerous grants from the National Institutes of Health, National Alliance for Research on Schizophrenia and Depression, the Stanley Foundation, private foundations and industry.

Selected Publications:

Shaffery J, Hoffmann R, Armitage R: The neurobiology of depression: perspectives from animal and human sleep studies. (Invited review) The Neuroscientist, 9(1):82-98, 2003.

Armitage R, Baker, FC, Parry B. The Menstrual Cycle and Circadian Rhythms   Principles and Practice, Section 15: Women’s Health. Kryger M, Roth T, Dement W (eds), Philadelphia: Elsevier Saunders, 2005, 1266-1277.

Robert J, Armitage R, Hoffmannn R, Emslie G:  Gender and age differences in sleep macroarchitecture in childhood and adolescent depression.  Sleep, 29 (3), 351-358, 2006. 

Armitage R. Sleep and Circadian Rhythms in Mood Disorders. Acta psychiatrica Scandinavica. Supplementum, 115:104-115, 2007.

Armitage R, Landis C, Hoffmann R, Lentz M, Watson N, Goldberg J, Buchwald D. The Impact of a 4-Hour Sleep Delay on Slow-Wave Activity in Twins Discordant for Chronic Fatigue Syndrome. Sleep, 30(5): 645-650, 2007.

Peer- Reviewed Chapters in Books

Armitage R, Baker, FC, Parry B. The Menstrual Cycle and Circadian Rhythms Principles and Practice, Section 15: Women’s Health. Kryger M, Roth T, Dement W (eds), Philadelphia: Elsevier Saunders, 2005, 1266-1277.

Armitage R:  Mood Disorders. Encylopedia of Sleep Medicine, Lee-Chiong, T (ed), John Wiley & Sons, 2005, 837-843.


 

Robert F. Hoffmann, Ph.D.
Associate Director of the Sleep and Chronophysiology Laboratory

Robert F. Hoffmann, Ph.D.Dr. Hoffmann obtained his undergraduate degree in Psychology at Franklin and Marshall College in 1967. He obtained his Ph.D. in Psychology at the University of Connecticut in 1973. Dr. Hoffmann was an Assistant Professor at Carleton University in 1973 to 1980 and Associate Professor in 1980 to 1996 and was also the Chairman of the Graduate Studies Committee at Carleton University, and co-director of the Sleep Lab. Dr. Hoffmann was Assistant Professor and Associate Director of the Sleep Study Unit in the Department of Psychiatry at the University of Texas Southwestern Medical Center at Dallas, Texas from 1996 to 2003. Dr. Hoffmann joined the faculty at the University of Michigan, Department of Psychiatry, 2003 and is currently Research Scientist and Associate Director of the Sleep & Chronophysiology Laboratory. He has an extensive teaching history and has mentored numerous students, and fellows.

Dr. Hoffmann's main area of interest is in quantitative EEG measurement in sleep and wakefulness and psychiatric illness. He is particularly interested in fatigue and sleep deprivation.

Selected Publications:

Hoffmann, R. Emslie, G., Thompson, J, Rintelmann, J., Moore, J. Armitage R. “The Relationship Between Actigraphy and Polysomnography in Healthy Children and Adolescents”. Sleep, 27: A816, 2004.

Armitage R  Hoffmann R & Emslie G. Rest-activity cycles in children and adolescents with depression. Journal of Sleep Research, 13, (Supplement 1), 2004.

Koffel E, Hoffmann R Armitage R.  Sleep, stress and mood in university students:  A 1-month Questionnaire Study.  Sleep, 28, A1027, 2005..

Armitage R, Hoffmann R, Robert JJ, Tekell J.  Response to a 3 hour sleep delay in healthy adults.  Sleep, 28, A0114, 2005.

Gillis M, Hoffmann R, Lumley M,  Roehrs T, Armitage R  “Effects of Sleep Restriction on Slow-Wave Activity and Self-Reported Pain in Patients with Fibromyalgia”. Sleep, 27: A741, 2004

Tekell J, Hoffmann R, Hendrickse W, Greene RW, Rush AJ, Armitage R: Gamma activity during sleep in schizophrenia and depression.  .  Sleep, 26: A374, 2003.

Armitage R, Hoffmann R, Husain M, Rush J. The effects of vagus nerve stimulation (VNS) on sleep in depression. Sleep, 25:A505-A506, 2002.

Armitage R, Hoffmann R, Emslie G, Rintelmann J, Moore J, Lewis K, Cole D: Rest-activity cycles in childhood and adolescent depression.  Sleep, 26: A2, 2003.


 

J. Todd Arnedt, Ph.D.
Clinical Assistant Professor of Psychiatry and Neurology
Director of Behavioral Sleep Medicine Program

Dr. Arnedt obtained his Ph.D. in Clinical Psychology from Queen’s University in Kingston, Ontario, Canada. He went on to complete a 1-year clinical internship in Behavioral Medicine and a 2-year postdoctoral fellowship in sleep research at Brown University. Dr. Arnedt is certified in Behavioral Sleep Medicine by the American Academy of Sleep Medicine and is the director of the Insomnia and Behavioral Sleep Medicine Program. His research interests include sleep loss in occupational settings, sleep and alcohol interactions, and cognitive behavioral treatments for sleep disorders.

Selected Publications:

Zimmerman ME, Arnedt JT, Stanchina M, Millman RP, & Aloia MS. Normalization of memory performance with PAP in memory-impaired patients with obstructive sleep apnea. Chest 2006; 130(6): 1772-1778.

Arnedt JT, Conroy DA, Rutt JL, Aloia MS, Brower KJ, & Armitage R. An open trial of cognitive-behavioral treatment for insomnia comorbid with alcohol dependence. Sleep Medicine 2007; 8:176-80.

Arnedt, JT, Conroy DA, Posner DA, & Aloia MS. Evaluation of the insomnia patient. Sleep Medicine Clinics 2006; 1:319-332.

Aloia MS, Arnedt JT, Stanchina M, & Millman RP. How early in treatment is PAP adherence established: Revisiting night-to-night variability. Behavioral Sleep Medicine, in press.

Conroy DA, Arnedt JT, Brower KJ, Strobbe S, Consens F, Hoffmann R, & Armitage, R. Perception of sleep in recovering alcohol dependent patients with insomnia: Relationship to future drinking. Alcohol: Clinical and Experimental Research 2006, 30(12):1992-1999.

Arnedt JT, Conroy, DA, & Brower KJ. Treatment options for sleep disturbances during alcohol recovery. Journal of Addictive Diseases, in press.


 

Deirdre A. Conroy, Ph.D.
Clinical Assistant Professor of Psychiatry 
Clinical Director of Behavioral Sleep Medicine Program

Dr. Conroy obtained her Ph.D. in Cognitive Neuroscience from City University of New York.  She completed her clinical training in sleep disorders medicine at New York Methodist Hospital and Columbia Presbyterian Medical Center.  She then completed a 2-year postdoctoral fellowship at the University of Michigan Addiction Research Center.  Dr. Conroy a licensed clinical psychologist who is board certified in Clinical Sleep Disorders by the American Board of Sleep Medicine and in Behavioral Sleep Medicine by the American Academy of Sleep Medicine.  Her research interests include the relationship between insomnia and alcoholism.

Selected Publications:

Conroy, DA, Arnedt, JT, Brower, KB.  Insomnia in patients with addictions: A safer way to break the cycle.  Current Psychiatry; 7 (5): 97-109. 2008.

Arnedt JT, Conroy DA, Rutt JL, Aloia MS, Brower KJ, & Armitage R. An open trial of cognitive-behavioral treatment for insomnia comorbid with alcohol dependence. Sleep Medicine; 8:176-80. 2007.

Arnedt, JT, Conroy DA, Posner DA, & Aloia MS. Evaluation of the insomnia patient. Sleep Medicine Clinics; 1:319-332. 2006.

Conroy DA, Arnedt JT, Brower KJ, Strobbe S, Consens F, Hoffmann R, & Armitage, R. Perception of sleep in recovering alcohol dependent patients with insomnia: Relationship to future drinking. Alcohol: Clinical and Experimental Research, 30(12):1992-1999. 2006.

Conroy, DA, Spielman AJ, Scott RQ: Daily rhythm of cerebral blood flow velocity. Journal of Circadian Rhythms. 2005.

Khalsa SB., Conroy DA., Duffy J., Czeisler C. Dijk DJ: Sleep- and circadian
dependent modulation of REM density. Journal of Sleep Research; 11(1):53-59. 2002.

 

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