Threat of suffocation and defensive reflex activation
- 9 February 2011
- journal article
- research article
- Published by Wiley in Psychophysiology
- Vol. 48 (3), 393-396
- https://doi.org/10.1111/j.1469-8986.2010.01076.x
Abstract
The current study examined emotional reflex reactions of participants threatened with respiratory distress caused by imposing a resistive load at inspiration. Cues signaling threat (breathing MAY be difficult) and safe periods were intermixed while startle reflexes, heart rate, skin conductance, and facial EMG activity were measured. Compared to safe cues, threat cues elicited significant startle potentiation, enhanced skin conductance, heightened corrugator EMG changes, and pronounced “fear bradycardia” consistent with defensive activation in the context of threatened respiratory dysfunction. These data indicate that anticipating respiratory resistance activates defensive responding, which may mediate symptomatology in patients with panic and other anxiety disorders.Keywords
This publication has 20 references indexed in Scilit:
- Does pulmonary rehabilitation reduce anxiety and depression in chronic obstructive pulmonary disease?Current Opinion in Pulmonary Medicine, 2009
- Natural selective attention: Orienting and emotionPsychophysiology, 2008
- Anticipation of interoceptive threat in highly anxiety sensitive personsBehaviour Research and Therapy, 2008
- Fear of pain and defensive activation ☆Pain, 2008
- To inhale or not to inhale: Conditioned avoidance in breathing behavior in an odor—20% CO2 paradigmBiological Psychology, 2008
- Physiological markers for anxiety: Panic disorder and phobiasInternational Journal of Psychophysiology, 2005
- Acoustic startle and anticipatory anxiety in humans: Effects of monaural right and left ear stimulationPsychophysiology, 1995
- Using confidence intervals in within-subject designsPsychonomic Bulletin & Review, 1994
- Dyspneic-fear and catastrophic cognitions in hyperventilatory panic attacksBehaviour Research and Therapy, 1989
- Guidelines for Human Electromyographic ResearchPsychophysiology, 1986