Obsessive - compulsive disorder (OCD) is not
associated with a higher intelligence quotient (IQ), a myth popularized by Sigmund Freud, according to researchers at Ben - Gurion University of the Negev (BGU), Texas State University and University of North Carolina at Chapel Hill.
Not exact matches
Several studies have also attempted to understand the role of breastfeeding on IQ, and although some authors conclude that the observed advantage of breastfeeding on IQ is related only to genetic and socioenvironmental factors, a recent meta - analysis showed that after adjustment for appropriate key co-factors, breastfeeding was
associated with significantly
higher scores for cognitive development than formula feeding.6 Longer duration of breastfeeding has also been positively
associated with intelligence in adulthood.22 We also observed the benefits of long - term breastfeeding on mental indices, along
with the indirect benefit of balancing the impact of exposure to p, p ′ DDE after adjustment for some socioeconomic variables.
Results Adjusting for sociodemographics, maternal
intelligence, and home environment in linear regression, longer breastfeeding duration was associated with higher Peabody Picture Vocabulary Test score at age 3 years (0.21; 95 % CI, 0.03 - 0.38 points per month breastfed) and with higher intelligence on the Kaufman Brief Intelligence Test at age 7 years (0.35; 0.16 - 0.53 verbal points per month breastfed; and 0.29; 0.05 - 0.54 nonverbal points per month
intelligence, and home environment in linear regression, longer breastfeeding duration was
associated with higher Peabody Picture Vocabulary Test score at age 3 years (0.21; 95 % CI, 0.03 - 0.38 points per month breastfed) and
with higher intelligence on the Kaufman Brief Intelligence Test at age 7 years (0.35; 0.16 - 0.53 verbal points per month breastfed; and 0.29; 0.05 - 0.54 nonverbal points per month
intelligence on the Kaufman Brief
Intelligence Test at age 7 years (0.35; 0.16 - 0.53 verbal points per month breastfed; and 0.29; 0.05 - 0.54 nonverbal points per month
Intelligence Test at age 7 years (0.35; 0.16 - 0.53 verbal points per month breastfed; and 0.29; 0.05 - 0.54 nonverbal points per month breastfed).
Despite
high heritability estimates of 45 % in childhood and 80 % in adulthood, only a handful of genes had previously been
associated with intelligence and for most of these genes the findings were not reliable.
Using the genetic data, along
with high - quality 3D photographs of the participants» faces, the researchers used an artificial
intelligence approach to find small differences in DNA sequences, called SNPs,
associated with facial features such as cheekbone height.
The research, led by Robert Plomin of the Institute of Psychiatry in London, identified six genes that were strongly
associated with high or low
intelligence, but even the most powerful...
These include Toyota's Variable Valve Timing
with intelligence (VVT - i) system; special lightweight pistons
with resin - coated skirts to help reduce friction and noise; a two - stage, variable - length intake manifold, which improves mid-range to
high - speed performance; newly designed 12 - orifice fuel injectors; Toyota's Direct Ignition System (DIS), which eliminates the distributor and its
associated wiring; and a lightweight electronic throttle.
A study involving 238 Dutch deaf children reported that
higher intelligence was
associated with better scores on social problems, thought problems, and attention problems of the child behavior checklist (van Eldik, Treffers, Veerman, & Verhulst, 2004).
Third, since single adults show
higher education and
intelligence as well as scholastic achievement, which is
associated with attachment security (Bowlby, 1973; Wacha, 2010), more attachment security might be observable in more highly educated single adults as well (H3).