tag:blogger.com,1999:blog-4624586630299165335.post8157872561115299323..comments2024-03-14T09:50:44.315+00:00Comments on Psychological comments: Morning sickness and child intelligenceAnonymoushttp://www.blogger.com/profile/09320614837348759094noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-4624586630299165335.post-90319185544671027852014-08-15T11:05:50.418+01:002014-08-15T11:05:50.418+01:00This comment has been removed by a blog administrator.otr214423https://www.blogger.com/profile/16376109133070654680noreply@blogger.comtag:blogger.com,1999:blog-4624586630299165335.post-24376226600650352912014-07-31T17:17:40.356+01:002014-07-31T17:17:40.356+01:00It’s interesting that the severity varies from wom...It’s interesting that the severity varies from woman to woman, and even from pregnancy to pregnancy for a particular woman. I wonder if severity correlates with childhood IQ.<br /><br />NVP is a very depressing thing for a woman to go through and I think the knowledge that it’s an indicator of smart and healthy children could help women to get through it.<br />Brucenoreply@blogger.comtag:blogger.com,1999:blog-4624586630299165335.post-19956169887198188362014-07-31T16:45:32.179+01:002014-07-31T16:45:32.179+01:00I think we should note that NVP is said to be pret...I think we should note that NVP is said to be pretty usual, as high as 80% in some accounts!Anonymoushttps://www.blogger.com/profile/09320614837348759094noreply@blogger.comtag:blogger.com,1999:blog-4624586630299165335.post-61475332137685827642014-07-31T16:44:31.771+01:002014-07-31T16:44:31.771+01:00Thanks. Will read the links. The 7 point differenc...Thanks. Will read the links. The 7 point difference in Performance IQ is almost half a standard deviation, which I see as a sizeable effect. There is certainly a folk wisdom view that high IQ is a baleful gift, despite all the obvious and well supported advantages.Anonymoushttps://www.blogger.com/profile/09320614837348759094noreply@blogger.comtag:blogger.com,1999:blog-4624586630299165335.post-85179517150567737352014-07-31T13:10:44.924+01:002014-07-31T13:10:44.924+01:00Thank you for the response. My wife has had NVP wi...Thank you for the response. My wife has had NVP with all seven of her pregnancies. There are quite a few claims that mineral deficiencies (e.g. magnesium) are the cause but I haven’t seen any definitive studies.Brucenoreply@blogger.comtag:blogger.com,1999:blog-4624586630299165335.post-70151445016759637232014-07-31T08:37:47.313+01:002014-07-31T08:37:47.313+01:00The size of the differences in IQ are much smaller...The size of the differences in IQ are much smaller than the standard deviation - which (to my mind) means the differences are not robust, and - even if true - are not usefully predictive at the individual level. <br /><br />The doxylamine antihistamine is a sedative, which would tend to reduce performance in an IQ test - except among people with high anxiety levels when it might increase performance - although this may be compensated (to some extent) by an empathic IQ tester allowing more time etc. I suppose there should have been a normal control group given the antihistamine, to tease out its effect on the IQ test. <br /><br />Twenty years ago Margie Profet's evolutionary explanation of pregnancy sickness was one of the things that got me into evolutionary psychology<br /><br />http://www.astralgia.com/webportfolio/omnimoment/archives/interviews/profet.html<br /><br />Having said all this - I would be surprised if pregnancy sickness did not correlate in some way with IQ, because pretty much everything else does, one way or the other. <br /><br />I am surprised, or not really, by the lack of research on the disadvantages of high IQ/ advantages of low IQ - <br /><br />http://iqpersonalitygenius.blogspot.co.uk/2012/08/disadvantages-of-high-iq.html<br /><br />but the reason is probably that some disadvantages (such as low fertility) are regarded (by high IQ people) as advantages - while some advantages (such as the kind of athleticism advantageous in agonistic conflict) are only apparent between races, not within. Bruce Charltonhttps://www.blogger.com/profile/09615189090601688535noreply@blogger.comtag:blogger.com,1999:blog-4624586630299165335.post-71751067765413414182014-07-30T13:56:46.974+01:002014-07-30T13:56:46.974+01:00I think it is because the anti-emetics helped the ...I think it is because the anti-emetics helped the mothers stay healthy, and not get malnourished or dehydrated.<br /><br />Nausea and vomiting of pregnancy (NVP) is a poorly understood phenomenon seen in as much as 80% of pregnancies,<br />with symptoms peaking between 5 and 12 weeks gestation.1 Although self-limited, NVP may have an unfavorable impact on women’s health. Approximately one-half to two percent of pregnant women experience the most severe form of NVP, hyperemesis gravidarum (HG),2 which is defined as persistent vomiting not related to other causes that may interfere with nutrition and fluid intake. HG is associated with ketonuria, electrolyte imbalance, dehydration, and weight loss. It is<br />additionally associated with childhood behavioral difficulties in offspring.<br />HG, the most common reason for hospitalization in the first trimester of pregnancy, may be prevented with timely treatment with anti-emetic drugs. In Canada, the only approved anti-emetic drug for use in pregnancy is diclectin, which contains 10 mg<br />each of doxylamine and vitamin B6 in a delayed-release formulary. Separately, these components are used worldwide to control NVP.<br />It has been postulated that NVP, which is a byproduct of altered secretion of hormones (namely human chorionic gonadotropin and thyroxine) to ensure adequate placental growth, is a marker for fetal protection deemed the ‘‘Maternal and Embryo Protection Hypothesis.’’ NVP is associated with favorable fetal outcomes, including reduced rates of miscarriage, stillbirth, preterm birth, intrauterine growth retardation, and congenital malformations.Anonymoushttps://www.blogger.com/profile/09320614837348759094noreply@blogger.comtag:blogger.com,1999:blog-4624586630299165335.post-56207210453750096422014-07-30T12:37:10.087+01:002014-07-30T12:37:10.087+01:00Why did the mothers treated with doxylamine–pyrido...Why did the mothers treated with doxylamine–pyridoxine have the highest IQs? Was this an artifact of the small sample size?Brucenoreply@blogger.com