Sunday, August 12, 2018

Links, 12, August 2018

  Why do many friendships dissolve as we age?
Laziness helped to lead extinction of Homo erectus
A British photographer captures the Indian phenomenon of men non-romantically holding hands
On belief superiority “Finally and more promisingly, the researchers found some evidence that belief superiority can be dented by feedback. If participants were told that people with beliefs like theirs tended to score poorly on topic knowledge, or if they were directly told that their score on the topic knowledge quiz was low, this not only reduced their belief superiority, it also caused them to seek out the kind of challenging information they had previously neglected in the headlines task (though the evidence for this behavioural effect was mixed).”
Spatial navigation countrywise  “While age most strongly correlated with navigational performance, researchers also found that country wealth, as measured by GDP (gross domestic product), correlated with performance. The researchers say this relationship may be due to associations with education standards, health and ability to travel. They focused on GDP for this analysis as it was a standard metric available for every country, but as part of the ongoing research project they will follow up with further comparisons of other factors.....Comparing the country-level results to the World Economic Forum's Gender Gap Index, the researchers found a correlation between country-wide gender inequality and a larger male advantage in spatial navigation ability. The gender gap in game performance was also smaller in countries with greater economic wealth.”

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