January 1, 1995Journal of Abnormal Psychology

Physiologic responses to loud tones in Vietnam veterans with posttraumatic stress disorder.

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Why the study?

Do Vietnam veterans with PTSD exhibit exaggerated physiologic responses to loud tones compared to veterans without PTSD?

Population

56 Vietnam combat veterans (37 with current PTSD and 19 without PTSD)

Comparison

Exposure to 15 consecutive 95-dB, 500-ms… vs Combat veterans without PTSD

Design

Case-control

Authors

SOScott P. OrrHarvard University NLNatasha B. LaskoBrigham and Women's Hospital ASArieh Y. ShalevHebrew University of Jerusalem

Discussion

Member takes

Implication

Supports exaggerated startle in PTSD veterans; leaves open diagnostic utility and causality.

Structured PICO

Do Vietnam veterans with PTSD exhibit exaggerated physiologic responses to loud tones compared to veterans without PTSD?

Population

56 Vietnam combat veterans (37 with current PTSD and 19 without PTSD)

Intervention

Exposure to 15 consecutive 95-dB, 500-ms, 1000-Hz tones with 0-ms rise and fall times

Comparator

Combat veterans without PTSD

Outcome

Eyeblink (orbicularis oculi electromyogram) and autonomic components (skin conductance and heart rate) of the acoustic startle responsesurrogate

Vietnam veterans with PTSD exhibit an exaggerated startle response and increased autonomic reactivity to loud tones compared to veterans without PTSD.

Cite This Study

Orr et al. (1995) studied this question.

synapsesocial.com/papers/6a76c46633def31403adfc4f https://doi.org/10.1037//0021-843x.104.1.75

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Physiologic responses to loud tones in Vietnam veterans with posttraumatic stress disorder.

Discussion

Member takes

Implication

Structured PICO

Cite This Study

Physiologic responses to loud tones in Vietnam veterans with posttraumatic stress disorder.

Discussion

Member takes

Implication

Structured PICO

Cite This Study

Also Consider

Also Consider