Tag Archive for 'IQ'

Bronze and silver coins from the 4th century CE found in Lod, central Israel. Image credit: Israel Antiquities Authority.

Atmospheric Lead Pollution Caused Widespread Cognitive Decline in Roman-Era Europe, Study Finds

Jan 7, 2025 by News Staff

Researchers have examined three ice core records to identify lead pollution levels in the Arctic between 500 BCE through 600 CE. Lead isotopes allowed...

Power et al. revealed that there were declines of approximately two IQ points over time in young people who use cannabis frequently compared to those who didn’t use cannabis; further analysis suggested that this decline in IQ points was primarily related to reduction in verbal IQ. Image credit: Felipe B. Marques.

Frequent Cannabis Use in Adolescence May Lower Your IQ

Feb 3, 2021 by News Staff

A systematic review and meta-analysis of seven longitudinal studies published in the journal Psychological Medicine shows evidence for an almost two-point...

This is the first study to examine the relation between general intelligence scores and delayed gratification abilities in common chimpanzees (Pan troglodytes). Image credit: Bernd Hildebrandt.

Chimps’ Self-Control is Related to General Intelligence: Study

Feb 9, 2018 by News Staff

Chimpanzees’ overall intelligence is correlated to their ability to exert self-control and delay gratification, according to a study published in the...

According to Seidlitz et al, morphometric similarity mapping provides a novel, robust, and biologically plausible approach to understanding how human brain networks underpin individual differences in psychological functions. Image credit: Gordon Johnson.

Novel Technique Reveals Relationship between IQ and Brain Connectivity

Jan 8, 2018 by News Staff

A simple technique for mapping the wiring of the brain — called morphometric similarity mapping — has shown a correlation between how well...

According to Liu et al, frequent fish consumption may help reduce sleep problems (better sleep quality), which may in turn benefit long-term cognitive functioning in children. Image credit: Takedahrs.

Weekly Fish Consumption May Help Reduce Sleep Problems, Improve Cognitive Performance in Children

Dec 22, 2017 by News Staff

According to a study published in the journal Scientific Reports, children who eat fish at least once a week sleep better and have IQ scores that are four...

A study by Abramovitch et al is the first analysis of existing data on the link between IQ and OCD sufferers verses the general population. Image credit: AirPix.

New Study Debunks Myth that Obsessive-Compulsive Disorder is Associated with Higher IQ

Sep 20, 2017 by News Staff

According to a meta-analytic study published in the journal Neuropsychology Review, obsessive-compulsive disorder is not associated with a higher intelligence...

The study sheds new light on the multifaceted nature of the advanced paternal age (APA) effects and explores the intricate links between APA, autism and talent. Image credit: Mojca J.

Older Fathers Have ‘Geekier’ Sons, Research Suggests

Jun 22, 2017 by News Staff

New research published in the journal Translational Psychiatry suggests that sons of older dads are more intelligent, more focused on their interests and...

Heatmap of gradient of expression of M1 and M3 spanning fetal development to late adulthood and in topographically distinct cortical regions: A1C - auditory cortex; AMY - amygdala; CBC - cerebellar cortex; DFC - dorsolateral prefrontal cortex; HIP - hippocampus; IPC - posterior inferior parietal cortex; ITC - inferior temporal cortex; M1C - primary motor cortex; MD - mediodorsal nucleus of thalamus; MFC - medial prefrontal cortex; OFC - orbital prefrontal cortex; S1C - primary somatosensory cortex; STC - superior temporal cortex; STR - striatum; V1C - primary visual cortex; VFC - ventrolateral prefrontal cortex. Image credit: Michael R. Johnson et al, doi: 10.1038/nn.4205.

Researchers Identify Intelligence Gene Networks

Dec 22, 2015 by News Staff

A group of scientists led by Imperial College London researcher Michael Johnson has identified two ‘gene networks’ associated with human cognitive...

Chimpanzee Intelligence Depends on Genes, Finds New Study

Jul 11, 2014 by News Staff

New research led by Prof William Hopkins of Georgia State University and Emory University has found that some cognitive abilities in chimpanzees (Pan troglodytes)...

A schematic section through the human eye with a schematic enlargement of the retina (University of Utah)

Eye Blood Vessels Linked to Cognitive Function, IQ

Jun 5, 2013 by News Staff

According to a new study published in the journal Psychological Science, the width of blood vessels in the retina – a light-sensitive layer at the...

The new study shows that individuals whose brains are better at automatically suppressing background motion perform better on standard measures of intelligence (Michael D. Melnick et al)

Scientists Say Simple Visual Task Can Predict IQ

May 27, 2013 by News Staff

According to a new study led by Dr Michael Melnick from the University of Rochester, people with high IQ scores aren’t just more intelligent, they...