| Maternal exposure to influenza in pregnancy and electrodermal activity in offspring: a further study from Mauritius. | |
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MedLine Citation:
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PMID: 9643058 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study examined the effect of mothers' exposure to the 1957 A2/Singapore influenza virus in the first, second, and third trimesters of pregnancy on the electrodermal activity of their 15-year-old offspring. The epidemic occurred during cold months of the year. The results show that maternal viral (and cold) exposure during all trimesters of pregnancy produced a lower frequency of nonspecific electrodermal responses and diminished responsivity to 75-db and 90-db tones as compared with the offspring of mothers who were not exposed. However, there was a critical effect of second trimester exposure as indicated by an increase in frequency of nonresponses to orienting tones. The findings are compared with those from an earlier study from Mauritius involving 3-year-old children in which the effects of exposure to the 1968 A2/Hong Kong virus were examined and in which the effect of could exposure could be examined separately because viral exposure occurred during the hot months. The effect of maternal exposure to the 1957 A2/Singapore influenza virus during pregnancy on the electrodermal activity of offspring was assessed in a study conducted in Mauritius in 1973-74. The peak months of the 1957 epidemic (July, August, and September) are cold months in Mauritius. Enrolled were 128 children who were 15 years old at the time of the investigation. Maternal viral exposure, regardless of the trimester of pregnancy in which it occurred, was associated with a lower frequency of nonspecific electrodermal responses and diminished responsivity to 75 db and 90 db tones compared with the children of mothers who were not exposed. Second trimester exposure was especially critical, however, as indicated by an increase in frequency of nonresponses to orienting tones. There were no differences between groups in nonresponding to intense stimuli. The findings of this study are consistent with those of a previous study conducted by the author on the effects of cold exposure. The lowered responsivity in offspring of mothers who were at risk for exposure to influenza and cold across all trimesters may be explained by the fact that more than one brain mechanism is responsible for hyporesponsivity. |
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Authors:
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P H Venables |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Psychophysiology Volume: 35 ISSN: 0048-5772 ISO Abbreviation: Psychophysiology Publication Date: 1998 Jul |
Date Detail:
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Created Date: 1998-08-04 Completed Date: 1998-08-04 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0142657 Medline TA: Psychophysiology Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 438-42 Citation Subset: IM; J |
Affiliation:
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University of York, Heslington, UK. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Arousal / physiology* Child Child, Preschool Cross-Sectional Studies Disease Outbreaks* Female Follow-Up Studies Galvanic Skin Response / physiology* Gestational Age Humans Infant, Newborn Influenza A virus* Influenza, Human / physiopathology* Male Mauritius Pregnancy Prenatal Exposure Delayed Effects* |
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