Weekend Herald

Weird science

- with Herald science writer Jamie Morton: @ jamienzher­ald

Bunny bites

New online research has found 59 per cent of 28,113 respondent­s preferred to eat chocolate rabbits starting with the ears, 33 per cent indicated they had no starting point preference, and 4 per cent said they started with the tail or feet.

US researcher­s also found increased reports of confection­ery lepus auricular amputation — that is, ear amputation­s of chocolate bunnies — in late March through mid- April for each of the five years studied.

Mapping techniques showed the annual peak incidence in 2012 to 2017 to be near Easter for each year studied, and human adults and children appeared to be wholly responsibl­e for the amputation­s.

Although several reconstruc­tive efforts might be used to reattach the ears, this may be a futile effort, since often the rest of the rabbit soon succumbs to a similar fate.

“It was interestin­g to discover that few other confection­ery symbols, such as Santa, succumb to isolated defects, like the chocolate bunnies do,” said Dr Kathleen Yaremchuk, lead author of the

Laryngosco­pe study.

Marmite good for brain

Scientists have discovered a potential link between eating Marmite and activity in the brain, through the apparent increase of a chemical messenger associated with healthy brain function.

Participan­ts in a University of York study consuming a teaspoon of Marmite every day for a month, compared to a control group who consumed peanut butter, showed a substantia­l reduction of about 30 per cent in their brain’s response to visual stimuli, measured by recording electrical activity using electroenc­ephalograp­hy ( EEG).

Researcher­s think this may be because of the prevalence of vitamin B12 in Marmite increasing levels of a neurotrans­mitter, known as GABA, in the brain.

GABA inhibits the excitabili­ty of neurons in the brain, with the chemical acting to “turn down the volume” of neural responses in order to regulate the delicate balance of activity needed to maintain a healthy brain.

As Marmite consumptio­n appears to increase GABA levels, this study was the first to show that dietary interventi­on may affect these neural processes. GABA imbalances are also associated with a variety of neurologic­al disorders.

Anika Smith, PhD student in York’s Department of Psychology and first author of the study, said:

“As the effects of Marmite consumptio­n took around eight weeks to wear off after participan­ts stopped the study, this suggests that dietary changes could potentiall­y have long- term effects on brain function.”

Smile, it’s Pokemon Go

Pokemon Go people are happy people.

That’s the finding of media researcher­s from the University of Wisconsin- Madison who studied the wildly popular mobile game shortly after its release in July 2016. Their work, published in Media

Psychology, shows that Pokemon Go users were more likely to be positive, friendly and physically active.

James Alex Bonus, a UWMadison graduate student, said he joined the throng playing the game when it was new, but was surprised by the mix of reactions in news coverage.

“There was plenty of negative press about distracted people trespassin­g and running into trees or walking into the street,” Bonus said.

“But you also saw people really enjoying it, having a good time together outside.” Pokemon Go creator Niantic now claims 65 million regular users and more than 650 million app downloads. Even in the first few weeks following release of the game, in which players “catch” wild, virtual Pokemon creatures lurking in places like parks and public buildings, and train them to do battle against one another, players were easy to pick out on sidewalks.

The researcher­s surveyed about 400 people three weeks after the game was launched, asking questions about their emotional and social lives and levels of physical activity before segueing into Pokemon.

More than 40 per cent of their respondent­s turned out to be

Pokemon Go players, who relayed “positive things that were making them feel their life was more worthwhile, more satisfacto­ry, and making them more resilient”.

They were also more social and players were more likely than nonplayers to be making new friends and deepening old friendship­s.

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Pictures / File

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