Volume 52, Issue 5 p. 667-678
Original Article

A psychophysiological investigation of emotion regulation in chronic severe posttraumatic stress disorder

Steven H. Woodward

Corresponding Author

Steven H. Woodward

National Center for PTSD, Dissemination and Training Division, VA Palo Alto Health Care System, Palo Alto, California, USA

Address correspondence to: Steven H. Woodward, Ph.D., NCPTSD, VA Palo Alto HCS, 3801 Miranda Ave., Palo Alto, CA 94304, USA. E-mail: [email protected]Search for more papers by this author
Ashley A. Shurick

Ashley A. Shurick

Department of Psychology, Stanford University, Stanford, California, USA

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Jennifer Alvarez

Jennifer Alvarez

Trauma Recovery Programs, VA Palo Alto Health Care System, Palo Alto, California, USA

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Janice Kuo

Janice Kuo

Psychology Department, Ryerson University, Toronto, Ontario, Canada

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Yuliana Nonyieva

Yuliana Nonyieva

Palo Alto University, Palo Alto, California, USA

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Jens Blechert

Jens Blechert

Division of Clinical Psychology, Psychotherapy, Health Psychology, Department of Psychology, University of Salzburg, Salzburg, Austria

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Kateri McRae

Kateri McRae

Department of Psychology, University of Denver, Denver, Colorado, USA

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James J. Gross

James J. Gross

Department of Psychology, Stanford University, Stanford, California, USA

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First published: 16 December 2014
Citations: 18
The authors wish to acknowledge N. J. Arsenault, J. Gauthier, and T. Bredesen for assistance with data collection and data analysis. We are especially indebted to Tyson Holmes for his guidance regarding the statistical challenges posed by our experimental design. We are also grateful for the useful comments provided by Lisa McTeague. Finally, we are grateful for the support of the patients and staff of the Men's Trauma Recovery Program, VA Palo Alto Health Care System.

Abstract

There have been few direct examinations of the volitional control of emotional responses to provocative stimuli in PTSD. To address this gap, an emotion regulation task was administered to 27 Operation Enduring Freedom/Operation Iraqi Freedom combat veterans and 23 healthy controls. Neutral and aversive photographs were presented to participants who did or did not employ emotion regulation strategies. Objective indices included corrugator electromyogram, the late positive potential, and the electrocardiogram. On uninstructed trials, participants with PTSD exhibited blunted cardiac reactivity rather than the exaggerated cardioacceleratory responses seen in trauma cue reactivity studies. On interleaved regulation trials, no measure evidenced group differences in voluntary emotion regulation. Persons with PTSD may not differ from normals in their capacity to voluntarily regulate normative emotional responses to provocative stimuli in the laboratory, though they may nevertheless respond differentially on uninstructed trials and endorse symptoms of dyscontrol pathognomonic of the disorder outside of the laboratory.

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