linkfest – 06/12/11

Human ancestors in Eurasia earlier than thought“Stone fragments found in Georgia suggest Homo erectus might have evolved outside Africa.”

Early Americans helped colonise Easter Island

Going ape: Ultraviolence and our primate cousins

Fair Chase“On the plains of New Mexico, a band of elite marathoners tests a controversial theory of evolution: that humans can outrun the fastest animals on earth.”

Stop On Red! The Effects of Color May Lie Deep in Evolution…

Scared of nuclear power, dummy? – from the audacious.

Women warriors show resilience similar to men – “Study examines mental health of recent veterans of US wars in Iraq and Afghanistan.” — this may apply to the women in the armed forces now, but i wouldn’t be so sure it would apply your average woman.

Superstitions Have Evolutionary Basis

Brain scans appear to show changes associated with violent behavior“A brain imaging study suggests that men with a history of violent behavior may have greater gray matter volume in certain brain areas, whereas men with a history of substance use disorders may have reduced gray matter volume in other brain areas….”

Agnostics and Big 5 personality traits – from the inductivist.

Brain imaging study of preschoolers with ADHD detects brain differences linked to symptoms“Smaller brain volumes associated with severity of ADHD symptoms”

When Is a Child’s Brain Ready for Maths? – @al fin.

bonus: Johann Hari: It’s not just Dominique Strauss-Kahn. The IMF itself should be on trial << read this.

Advertisements

linkfest – 06/05/11

Religious Experiences Shrink Part of the Brain“The study, published March 30 in PLoS One, showed greater atrophy in the hippocampus in individuals who identify with specific religious groups as well as those with no religious affiliation…. The results showed significantly greater hippocampal atrophy in individuals reporting a life-changing religious experience. In addition, they found significantly greater hippocampal atrophy among born-again Protestants, Catholics, and those with no religious affiliation, compared with Protestants not identifying as born-again.”

An Epidemic of False Claims“Competition and conflicts of interest distort too many medical findings”

Autism May Have Had Advantages in Humans’ Hunter-Gatherer Past, Researcher Believes

Atheists and the Big 5 personality traits“[A]theists are disagreeable and open to new things.” from the inductivist.

Scientists find BEES suffer from negative emotion

Non-independent mutations present new path to evolutionary success“Mutations of DNA that lead to one base being replaced by another don’t have to happen as single, independent events in humans and other eukaryotes, a group of Indiana University Bloomington biologists has learned after surveying several creatures’ genomes…. [They] found that across the board, about three percent of new mutations are ‘multi-nucleotide mutations,’ or MNMs, perhaps the result of a single, error-prone DNA polymerase making two or more mistakes as it made its way down the chromosome.”

Will Neuroscience Challenge the Legal Concept of Criminal Responsibility?

Female Australopiths Left Home Once Mature, Males Didn’t“Teeth from ancient human ancestors suggest that females joined new social groups once they reached maturity.”

Asphalt may have poisoned ancient Americans

Women have a little less sex and a couple more partners than they did 20 years ago – from the audacious.

Color Red Increases the Speed and Strength of Reactions

Researchers characterize epigenetic fingerprint of 1,628 people

Human Brain Limits Twitter Friends to 150“The number of people we can truly be friends with is constant, regardless of social networking services like Twitter, according to a new study of the network.” – the dunbar number again!

Californian dolphin gang caught killing porpoises

bonus: Quantum mechanics rule ‘bent’ in classic experiment