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Eating together? Simply a matter of adapting

Date:
February 2, 2012
Source:
Radboud University Nijmegen
Summary:
Women dining together finely tune their eating behavior to that of their dining partner. Rather than eating at their own pace, they tend to take bites at the same time as the person sitting across the table.

Women dining together finely tune their eating behaviour to that of their dining partner. Rather than eating at their own pace, they tend to take bites at the same time as the person sitting across the table. These are the findings of a study carried out by Roel Hermans from the Behavioural Science Institute of Radboud University Nijmegen.

The results are published in the international scientific journal PLoS ONE on 2 February 2012.

The idea that people adjust the amount they eat to fit in with their eating companion is nothing new. However, previous studies into this phenomenon had only examined the way in which the eating behaviour of person A influenced that of person B. Hermans wanted to broaden this one-sided approach. He explains his reason using an example: 'If the two of us eat together, my eating behaviour can influence yours, but your reaction can then also influence my behaviour. It's a perpetual chain of reactions.'

So Hermans and his colleagues studied whether eating companions also adjusted the timing of their bites in line with each other, thereby literally mimicking each other. Seventy female students took part in the study, eating in a replica restaurant where they were served a hot meal together with a female companion they had not met before. Hermans observed their behaviour via a hidden camera, keeping careful track of exactly when each person ate a bite of the meal. He generated a detailed data file of the exact times at which each one of every couple took a bite.

Mimicry

The study showed that both women in every couple tended to synchronise their bites with their eating companion rather than eating at their own pace. This mimicry was three times more prominent at the beginning of the meal than at the end. The results can probably be explained by subconscious mimicry, according to Hermans. Previous research into social influence on eating behaviour has already demonstrated that women adapt their eating behaviour in line with that of familiar and unfamiliar people, and this research set-up may well have reinforced the effect. 'When eating with someone you don't know, mimicking your companion's behaviour can be an important way to make an impression or ingratiate yourself, particularly when just becoming acquainted.

First study

This is the first study proving that people adapt their eating behaviour at a micro-level. Roel Hermans: 'As we only concentrated on female students, colleagues from the same department will now explore whether the same effects are seen among children.' The fact that obesity is becoming an increasingly urgent health threat makes it important to ascertain the impact that the environment has on our eating behaviour. Hermans: 'I think it's important that people realise how their eating behaviour can be influenced without them knowing. They could use this knowledge to help change their eating patterns if need be.'


Story Source:

The above story is based on materials provided by Radboud University Nijmegen. Note: Materials may be edited for content and length.


Journal Reference:

  1. Roel C. J. Hermans, Anna Lichtwarck-Aschoff, Kirsten E. Bevelander, C. Peter Herman, Junilla K. Larsen, Rutger C. M. E. Engels. Mimicry of Food Intake: The Dynamic Interplay between Eating Companions. PLoS ONE, 2012; 7 (2): e31027 DOI: 10.1371/journal.pone.0031027

Cite This Page:

Radboud University Nijmegen. "Eating together? Simply a matter of adapting." ScienceDaily. ScienceDaily, 2 February 2012. <www.sciencedaily.com/releases/2012/02/120202093828.htm>.
Radboud University Nijmegen. (2012, February 2). Eating together? Simply a matter of adapting. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2012/02/120202093828.htm
Radboud University Nijmegen. "Eating together? Simply a matter of adapting." ScienceDaily. www.sciencedaily.com/releases/2012/02/120202093828.htm (accessed July 30, 2014).

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