Blog 2017-02-05T08:44:17+00:00

Latitude is correlated with IQ and height.

The Japanese average IQ has been estimated to be 104. It is slightly lower than the Chinese and Korean averages.
The the highest IQ, in prefecture Akita, had 107 while the one with the lowest (Okinawa) had 96. This is surprising in that it challenges the much-touted homogeneity of Japanese people.
Further, people living in the northern part of Japan are taller, more intelligent and less crime prone. They divorce less often, have lower fertility.
Skin whiteness is positively correlated with latitude and also with IQ, and their correlation is almost the same.
And we can calculate that 1 IQ point raises average income by 2.5%.

Kenya Kura; Japanese north–south gradient in IQ predicts differences in stature, skin color, income, and homicide rate; Volume 41, Issue 5, September–October 2013, Pages 512–516

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Lefties earn 10-12 percent less than righties do

We can explained it by their lower ability to lear and problem solve.

Sartarelli recruited 432 people, eight percent left-handers, to play a game. They had to put in effort and cut good deals. Some participants offered employment contracts to other participants. They played the roles of the “workforce” in the simulation.

The lefties achieved the same scores as the right-handers. They also brought home as much bacon in the simulation.

Researchers found some interesting relationships between the personality of left-handers and their performance.. They earned more when more extraverted, and less when more neurotic. At the same time, a 10 times bigger group of righties didn’t show this linking.

They also found that left-handers were more agreeable. Researchers connect these findings with lower salaries.

 Sartarelli M (2016) Handedness, Earnings, Ability and Personality. Evidence from the Lab. PLoS ONE 11(10): e0164412. doi:10.1371/journal.pone.0164412

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Distractions develop creativity

The study involved the use of both focused thought on a subject, and distracted thought on a subject.

Each person in the study writes down a list of his ideas. They were then either left alone to think, or distracted. After this, they choose the idea from their list.

It shows of that distracted people chose better ideas than participants without distraction.

This implies that creativity is easier when distracted rather than focused. This might mean that distraction makes the unconscious more active letting ideas form easier.

Finding creative solutions with a distracted mind is sometimes easier than when focused.

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People who trust in their feelings predict the future events better than people who don’t trust in their feelings!

Several studies found a correlation between a person’s trust in their feelings and predictions. A person that predicts something is more accurate if they trust themselves. This seems to be more than a matter of confidence.

It seems that belief in one’s self can make it easier to think about subjects that they understand.

When you know a lot on a subject confidence in yourself can help you think clearer. In this way you can better guess future outcomes like for example: the 2008 US Democratic presidential nomination, the stock market, the winner of American Idol and even the weather.

However, the effect occurs only among individuals who possess sufficient background knowledge about the prediction domain. It dissipates when the prediction criterion becomes inherently unpredictable.

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Most people would prefer that you simply buy them something that they’ve told you they want.

In a study, participants were happier receiving a gift from the wedding list than receiving a surprise gift. Researchers achieved the same scores in the next two studies.

Interestingly, in the final study recipients said they’d appreciate money more than items from the wish-list. Givers fought that argument and said that it is not true.

It looks like people like to get money first, later the item from a wish-list, and lastly at the end, a surprise gift.

Now life looks easier. Right?


Gino, F., and Flynn, F. (2011). Give them what they want: The benefits of explicitness in gift exchange. Journal of Experimental Social Psychology, 47 (5), 915-922 DOI: 10.1016/j.jesp.2011.03.015

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