Pregnancy does not affect human olfactory detection thresholds.

Abstract:

:Hyperosmia is suspected in pregnancy; however, no empirical study using validated measures of olfactory function has clearly confirmed the anecdotal reports of this phenomenon. The goal of the current study is to compare the olfactory sensitivity of pregnant women to that of nonpregnant women and men. All participants rated their sense of smell and pregnant women listed the odors to which they were most sensitive. Detection thresholds were measured using a well-validated protocol. A group of pregnant and nonpregnant women was studied longitudinally using a signal detection procedure designed to detect small differences in sensitivity. Pregnant women, particularly in the 1st trimester, rated their sense of smell to be higher than nonpregnant women and men and indicated many (primarily unpleasant) odors to which they were more sensitive. Women rated their sense of smell higher than men. However, there was no sex difference in thresholds and neither thresholds nor signal detection measures of sensitivity were significantly affected by either sex or pregnancy status. The implications of the lack of relationship between self-report and measures of olfactory sensitivity, particularly in pregnancy, are discussed.

journal_name

Chem Senses

journal_title

Chemical senses

authors

Cameron EL

doi

10.1093/chemse/bjt063

subject

Has Abstract

pub_date

2014-02-01 00:00:00

pages

143-50

issue

2

eissn

0379-864X

issn

1464-3553

pii

bjt063

journal_volume

39

pub_type

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