Tagged: IQ

A more convincing take on prenatal maternal dietary effects on child IQ - Open Parachute

Ken Perrott Sep 17, 2018

Prenatal maternal nutrition is more likely to influence child cognitive abilities than fluoride. A new paper shows this by considering the effects of good or bad prenatal nutrition for the women in the Basash et al., (2016)  study that anti-fluoride campaigners promote. The new data shows that nutrition is more important than fluoride. The Bashash et al. (2016) reported a … Read More

Anti-fluoridationists rejection of IQ studies in fluoridated area. - Open Parachute

Ken Perrott Apr 04, 2018

US anti-fluoride activist Paul Connett claims studies cannot detect an IQ effect from fluoridated water because total fluoride intake is the real problem – but still campaigns against community water fluoridation. Image credit: MSoF “Activist Spouts Nonsense – The Evidence Supports Fluoridation” This is another article in my critique of the presentation Paul Connett prepared to present to a … Read More

Epilepsy drug exposure in womb linked to significantly poorer school test results - News

Jean Balchin Mar 29, 2018

According to a study published recently in the Journal of Neurology Neurosurgery & Psychiatry, exposure to epilepsy drugs in the womb is linked to significantly poorer school test results among 7 year olds. Evidently, prospective mothers need to be fully informed of the risks of treatment. However these risks need to be weighed against the need for effective seizure control during … Read More

The 52 IQ studies used by anti-fluoride campaigners - Open Parachute

Ken Perrott Mar 28, 2018

Slide number 30 from Paul Connett presentation prepared for a talk at NZ Parliament buildings in February 2018. Continuing my critique of the presentation prepared by Paul Connett for his much-publicised meeting at Parliament Building in February. The meeting attracted only three MPs but his presentation is useful as it presents all the arguments anti-fluoride campaigners rely on at the … Read More

Anti-fluoride group coordinator responds to my article - Open Parachute

Ken Perrott Mar 13, 2018

My recent article Paul Connett’s misrepresentation of maternal F exposure study debunked got some online feedback and criticism from anti-fluoride activists. Mary Byrne, National coordinator Fluoride Free New Zealand, wrote a response and requested it is published on SciBlogs “in the interests of putting the record straight and providing balance.” I welcome her response and have posted it here. Hopefully, this will … Read More

Paul Connett’s misrepresentation of maternal F exposure study debunked - Open Parachute

Ken Perrott Mar 06, 2018

Anti-fluoride campaigners are misrepresenting a recent Mexican study claiming its findings should cause governments around the world to abandon community water fluoridation (CWF). Their claims are unwarranted because the study has a high degree of uncertainty. Activists are misrepresenting the accuracy of the studies findings. Because Mexico has areas of endemic fluorosis the study itself is not relevant to CWF. Read More

Paul Connett “updates” NZ MPs about fluoride - Open Parachute

Ken Perrott Feb 22, 2018

 Data from Bashash et al., (2017). Despite a statistically significant relationship of child IQ with mothers prenatal urinary fluoride, this explains only about 3% of the huge scatter in the data. I haven’t followed the latest speaking tour of Paul Connett – organised by the local Fluoride Free NZ organisation. But I watched a TV interview with him this … Read More

Yet another fluoride-IQ study - Open Parachute

Ken Perrott Jan 31, 2018

As with most of these fluoride-IQ studies this one is only relevant to areas of endemic fluorosis (This is from a UNESCO paper and has been corrected for New Zealand. Identification of fluorosis in a country does not imply the whole country is high fluoride). Yes, it’s a bit like groundhog day. Another fluoride-IQ study – and we expect this to … Read More

Anti-fluoridation campaigners often use statistical significance to confirm bias - Open Parachute

Ken Perrott Dec 06, 2017

Frankly, these days I just get turned off by media reports of studies showing statistically significant relationships as evidence for or against the latest health or other fads. I was pleased to read this Nature article – Five ways to fix statistics – recently as it mirrors my concern at the way statistical analysis is sometimes used to justify or confirm a bias and not … Read More

‘Brain training’ apps won’t make you smarter - Guest Work

John Kerr Dec 01, 2017

If you think that a few bucks spent on a braining training app is a solid investment in your intellectual future, think again. Anyone who has spent a reasonable amount of time on the internet has probably heard of the brain training app Lumosity. The San Francisco-based company has spent millions on advertising and claims to have 85 million users. Their app is … Read More