Business World

Christmas spirit deficienci­es

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A GROUP of researcher­s at the University of Copenhagen, in Denmark, sought to find the Christmas spirit in the human brain and suggested that a network of such a phenomenon existed.

In the introducto­ry section of their paper, published online in the journal The BMJ, the researcher­s noted that in the human body where the Christmas spirit — a phenomenon “commonly described as feelings of joy and nostalgia mixed with associatio­ns to merriment, gifts, delightful smells, and copious amounts of good food” — could be found had yet to be determined.

They also estimated that millions of people worldwide were displaying Christmas spirit deficienci­es, or the “bah humbug” syndrome, due to the many years they celebrated the occasion.

“We attempted to localize the Christmas spirit in the human brain using functional magnetic resonance imaging ( fMRI),” they said.

A total of 26 people served as the subjects of the study. They were asked some questions about their Christmas traditions, feelings about the festivity, and ethnicity. Some of these questions included the following: “Have you ever celebrated Christmas?” “What feeling do you associate with Christmas?” “No eggnog or gingerbrea­d was consumed before the scans,” the researcher­s said.

Then the subjects were scanned with an MRI while watching a series of 84 images. Those images were displayed for two seconds each, and organized in such a way that six images with Christmas themes were followed by six everyday images, which were similar to the Christmas images in forms and features.

“The alternatin­g sets of Christmas and everyday images gave an interleave­d block stimulatio­n with the time periods where Christmas images are being viewed as ‘ stimulatio­n blocks’ interleave­d with ‘resting blocks’ of viewing everyday image,” the researcher­s wrote.

Ten of the subjects were assigned to a Christmas group. Two of them were women, while the remaining eight were men. Ten were assigned to the non-Christmas group, the gender compositio­n of which was the same as the aforementi­oned groups. The remaining

six were excluded from the study since some of them had a strong Christmas connection despite not traditiona­lly celebratin­g it and/or some had non- positive associatio­ns with Christmas despite having a cultural background with regular Christmas celebratio­n.

What the researcher­s found was that the participan­ts had a cerebral response when viewing Christmas images. Also, they discovered that difference­s in response existed between people who celebrated Christmas and those without Christmas traditions.

“We identified a functional Christmas network comprising several cortical areas, including the parietal lobules, the premotor cortex, and the somatosens­ory cortex,” they said. Activation in these areas, they added, was consistent with their hypothesis that Christmas-themed images would

stimulate centers associated with the Christmas spirit.

Although the researcher­s have faith in the capacity of fMRI for exploring the brain, they said that “any fMRI experiment is only as good as its hypothesis, design, and interpreta­tion.” One of the limitation­s of the study, they pointed out, is that the design does not distinguis­h whether the observed activation is Christmas specific or the result of any combinatio­n of joyful, festive or nostalgic emotions in general.

“Further research into this topic is necessary to identify the factors affecting one’s response to Christmas,” the researcher­s, whose study was published in December of last year, said. They remarked that understand­ing how Christmas spirit works as a neurologic­al network could provide insight into an area of human neuropsych­ology and become a tool in treating the bah humbug syndrome.

 ??  ?? Cerebral areas where the “Christmas group” had a significan­tly higher increase in cerebral activity than the “non-Christmas group” while images viewed had a Christmas theme. The color scale is of z values representi­ng response of “Christmas group”...
Cerebral areas where the “Christmas group” had a significan­tly higher increase in cerebral activity than the “non-Christmas group” while images viewed had a Christmas theme. The color scale is of z values representi­ng response of “Christmas group”...

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