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Feelings determine from which side we embrace each other

January 24, 2018

Moreover, they observed that predictions about which hand will be on top during an embrace can be based on the participants' handedness and footedness. Their results were published in the journal Psychological Research on January 18, 2018.

Hugs demonstrate love and joy and give comfort

Hugs are part of social interactions between humans since birth. The express affection and love, and they occur in both positive and neutral contexts: we hug when we are sad or afraid, or simply when saying hello. "We wanted to know if hug-related behaviour is affected by the emotional context of the give situation," explains lead author Julian Packheiser. "Moreover, we wanted to find out if motor characteristics such as handedness determine the lateralisation of the embrace."

Goodbye and aviophobia - joyful reunion and relief

To this end, the researchers studied more than 2,500 hugs. At a German airport, they evaluated approx. 1,000 embraces at the international departures and arrivals terminals each. During departure, they assumed that the people involved in the hug experienced negative emotions: first, because they say goodbye to their loved ones, and second because, according to studies, almost 40 per cent of all air travellers suffer from aviophobia - which augments the negative effect. On arrival, on the other hand, positive emotions are generated thanks to joyful reunions and the relief experienced after the flight is finally over.

Hugs of strangers in the street

In order to study neutral embraces, the researchers made use of the video platform YouTube. Here, they found clips of actors who offered blindfolded hugs to strangers in the street. They analysed more than 500 such embraces.

Emotions are processed in the right hemisphere

Consistent with older studies, the researchers determined that most people show a preference for right-sided hugs. At the same time, it emerged that left-sided hugs occur more frequently in positive as well as negative situations. "This is because of the influence of the right hemisphere, which controls the left side of the body and processes both positive and negative emotions," explains Julian Packheiser. "When people hug, emotional and motor networks in the brain interact and cause a stronger drift to the left in emotional contexts."

Hugging a shop window mannequin

In order to investigate the influence of handedness and footedness, the researchers subsequently asked 120 test participants to hug a mannequin after listening to various positive, negative and neutral short stories via headphones. The participants' handedness and footedness were recorded in a survey. "Handedness and footedness can indeed predict the lateralisation of an embrace," says Julian Packheiser. Right-handed people tend to hug the other person from the right side, much more often than left-handed people.

An embrace between two men is an outlier: here, the researchers observed a strong left-hand drift - even in neutral situations. "Our interpretation is that many men consider embraces between men to be something negative; therefore, they tend to perceive hugs as negative even in a neutral situation, such as saying hello," opines Sebastian Ocklenburg. Accordingly, the right hemisphere is activated due to negative emotions and affects the motion to the left.

Julian Packheiser was funded by the German Research Foundation at the Research Training Group "Situated Cognition" (GRK 2185/1).

Original publication

Julian Packheiser, Noemi Rook, Zeynep Dursun, Janne Mesenhöller, Alrescha Wenglorz, Onur Güntürkün, Sebastian Ocklenburg: Embracing your emotions: affective state impacts lateralisation of human embraces, in: Psychological Research, 2018, DOI: 10.1007/s00426-018-0985-8,

Ruhr-University Bochum

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