Winnipeg Free Press - PRINT EDITION

Intimate couples play the 'hanger' games

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LOS ANGELES -- Your normally cheerful spouse has suddenly, and inexplicably, turned cranky and an otherwise pleasant day is fast becoming a scene from Who's Afraid of Virginia Woolf. Sound familiar?

When you see those storm clouds gathering in your significant other's eyes, you might do well to give them some carbohydrates -- and fast.

That's the advice of a team of researchers who examined the connection between low blood sugar levels and aggression in married couples. The paper, which was published this month in the Proceedings of the National Academy of Sciences, found when blood glucose levels dropped, spouses were far more likely to stick pins into voodoo dolls representing their mates and blast loud noises into earphones strapped to their mate's head.

The authors argue loss of self-control is a contributing factor to aggression between intimate partners, and that self-control is linked to nutrition.

"Self-control requires energy, and that energy is provided in part by glucose," wrote lead study author Brad Bushman, a professor of communication and psychology at Ohio State University.

The authors described the phenomenon of lashing out aggressively due to hunger with the slang term "hanger."

To test their hypothesis, authors studied 107 married couples.

For three weeks, the spouses' glucose levels were checked in the morning, before breakfast, and in the evening, before bed. They were also asked to perform a unique task at the end of the day, and to record the results.

"To obtain daily measures of aggressive inclinations toward their partner, each participant received a voodoo doll along with 51 pins and was told: 'This doll represents your spouse. At the end of each day, insert between 0 and 51 pins in the doll, depending how angry you are with your spouse."

Then, at the end of 21 days, they played a "game" in the lab that was designed to measure aggressive behaviour.

"Participants were told that they would compete with their spouse to see who could press a button faster when a target square turned red on the computer, and that the winner on each trial could blast the loser with loud noise through headphones," the authors wrote.

A volume dial allowed the punishment-inflicting spouses to choose between silence and a raucous 105 decibels. They could also adjust the duration of the punishment -- from half a second to five seconds.

In reality, the game, and the punishment, were a sham.

Because they were seated in separate rooms, they could not tell it was all a ruse.

Nonetheless, lower glucose levels translated to more pins stuck in the doll and longer, more intense noise settings, authors wrote.


-- Los Angeles Times

Republished from the Winnipeg Free Press print edition April 26, 2014 D4

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