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Lunch with company reduces cognitive control, may increase social harmony

Date:
July 31, 2013
Source:
Public Library of Science
Summary:
Lunch at a restaurant with friends reduces cognitive control more than lunch eaten alone at a desk does, according to new research.
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Lunch at a restaurant with friends reduces cognitive control more than lunch eaten alone at a desk does, according to research published July 31 in the open access journal PLOS ONE by Werner Sommer from the Humboldt University at Berlin, Germany, and colleagues from other institutions.

Participants in the study either ate a solitary meal alone at their desk in a restricted amount of time, or took a short walk to a restaurant for an hour-long lunch with a friend. All meals were identical in the kind and amounts of food consumed. After the meal, people who had a restaurant lunch were calmer and less wakeful than those who ate at their desks. They also fared more poorly on performance tests of cognitive control, and neurophysiological measurements indicated decreased cognitive control of performance and error monitoring processes.

Since the meals differed in many ways including the presence of a friend, environment and lack of time restrictions, the authors explain "It is impossible to specify at this point, which of the variables above are crucial for the effects observed in our study."

They add, "Reduced cognitive control is a disadvantage when close self-monitoring of performance and detailed attention to errors is required, such as in numerical processing. In other situations, an attenuation of cognitive control may be advantageous, such as when social harmony or creativity is desired."


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The above post is reprinted from materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Werner Sommer, Birgit Stürmer, Olga Shmuilovich, Manuel Martin-Loeches, Annekathrin Schacht. How about Lunch? Consequences of the Meal Context on Cognition and Emotion. PLoS ONE, 2013; 8 (7): e70314 DOI: 10.1371/journal.pone.0070314

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Public Library of Science. "Lunch with company reduces cognitive control, may increase social harmony." ScienceDaily. ScienceDaily, 31 July 2013. <www.sciencedaily.com/releases/2013/07/130731230120.htm>.
Public Library of Science. (2013, July 31). Lunch with company reduces cognitive control, may increase social harmony. ScienceDaily. Retrieved July 3, 2015 from www.sciencedaily.com/releases/2013/07/130731230120.htm
Public Library of Science. "Lunch with company reduces cognitive control, may increase social harmony." ScienceDaily. www.sciencedaily.com/releases/2013/07/130731230120.htm (accessed July 3, 2015).

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