Journal article
Gastric myoelectrical and autonomic cardiac reactivity to laboratory stressors
Psychophysiology, Vol.38(4), pp.642-652
07/2001
DOI: 10.1017/S0048577201001093
PMID: 11446577
Abstract
We evaluated the effects of two laboratory stressors (speech preparation and isometric handgrip) on gastric myoelectrical and autonomic cardiac activity, and the extent to which autonomic responses to these stressors and somatization predict reports of motion sickness during exposure to a rotating optokinetic drum. Both stressors prompted a decrease in preejection period (PEP) and respiratory sinus arrhythmia (RSA), and an increase in a dysrhythmic pattern of gastric myoelectrical activity, termed gastric tachyarrhythmia. Stressor-induced decreases in RSA and higher somatization scores predicted increased reports of motion sickness during drum rotation. These results demonstrate that laboratory stressors concurrently affect gastric myoelectrical activity and autonomic control of the heart, and that stressor-induced decreases in RSA and higher levels of somatization predict motion sickness susceptibility.
Details
- Title: Subtitle
- Gastric myoelectrical and autonomic cardiac reactivity to laboratory stressors
- Creators
- PETER J GIANAROS - Department of Psychology, The Pennsylvania State University, University Park, USAKAREN S QUIGLEY - Department of Psychology, The Pennsylvania State University, University Park, USAJ. TOBY MORDKOFF - Department of Psychology, The Pennsylvania State University, University Park, USAROBERT M STERN - Department of Psychology, The Pennsylvania State University, University Park, USA
- Resource Type
- Journal article
- Publication Details
- Psychophysiology, Vol.38(4), pp.642-652
- DOI
- 10.1017/S0048577201001093
- PMID
- 11446577
- NLM abbreviation
- Psychophysiology
- ISSN
- 0048-5772
- eISSN
- 1540-5958
- Language
- English
- Date published
- 07/2001
- Academic Unit
- Psychological and Brain Sciences
- Record Identifier
- 9984002307202771
Metrics
15 Record Views