Abstract:
OBJECTIVE:The goal of this investigation was to determine in healthy adults the effect of expectation manipulations on the development of motion sickness, as indicated by abnormal gastric myoelectric activity and subjective reports of symptoms of motion sickness. METHOD:Eighty participants, moderately susceptible to motion sickness, experienced one of four conditions created from a two-variable (Expectation, Drum), two-factor model (High/Low expectation for sickness; Rotating/Stable Drum). The electrogastrogram (EGG) was recorded 6 min prior to the expectation manipulation; 6 min following the expectation manipulation; 6 min before drum activation; and 16 min during drum activation. Self-report questionnaires indicating expectation for sickness (MSEx) and motion sickness symptoms (Nausea Profile [NP]) were obtained following the expectation manipulation and exposure to the drum, respectively. RESULTS:No significant differences were observed among expectation groups for retrospective reports of motion sickness (NP); however, significant differences in EGG responses to drum rotation were obtained. The unexpected results of a univariate analysis of variance (ANOVA) revealed significantly greater gastric tachyarrhythmia and less normal activity, an indication of motion sickness, in the low expectation for sickness conditions. CONCLUSION:These results suggest that inducing a high expectation for sickness in healthy individuals about to be exposed to provocative motion results in a protective effect from motion sickness following exposure to the stimulus, while low expectations may induce abnormal gastric activity.
journal_name
J Psychosom Resjournal_title
Journal of psychosomatic researchauthors
Williamson MJ,Thomas MJ,Stern RMdoi
10.1016/S0022-3999(03)00130-2subject
Has Abstractpub_date
2004-06-01 00:00:00pages
721-6issue
6eissn
0022-3999issn
1879-1360pii
S0022399903001302journal_volume
56pub_type
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journal_title:Journal of psychosomatic research
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journal_title:Journal of psychosomatic research
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journal_title:Journal of psychosomatic research
pub_type: 杂志文章
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journal_title:Journal of psychosomatic research
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更新日期:2017-02-01 00:00:00
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journal_title:Journal of psychosomatic research
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:Journal of psychosomatic research
pub_type: 杂志文章
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更新日期:1999-02-01 00:00:00
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pub_type: 杂志文章
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更新日期:1994-02-01 00:00:00
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pub_type: 杂志文章
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更新日期:2003-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2000-11-01 00:00:00