Moral reflection can be seen in brain activity and eye movements

Moral reflection can be seen in brain activity and eye movements
Taking the perspective of the organ donor sister activated the brain areas where moral thinking occurs (warm colors) and assuming the perspective of the sick sister activated more of the brain areas involved in empathy. Credit: Mareike Bacha-Trams

Social neuroscience researchers investigated the effects of similarity by showing subjects the film "My Sister's Keeper" and asking them to watch the film from either the perspective of the donor sister or the sick sister. The subjects' brain processing was measured by functional MRI, and at the same time eye tracking was carried out, monitoring where the subject's eyes were looking on the screen.

"Understanding another person's point of view is important to reach consensus. It can reduce prejudices and facilitate the development of empathy. We wanted to find out how taking and changing perspective is reflected in and eye movement," said Postdoctoral Researcher Mareike Bacha-Trams.

The study involved 30 women who were shown a 25-minute clip from the film, and who were asked to observe the film from different perspectives. There is a moral conflict in the film where Anna refuses to donate an organ to her sister Kate who has cancer.

At the beginning of the film, the researchers told the subjects that the sisters were either biological siblings or that the younger sister had been adopted into the family as a baby.

"When the subject watched the film from the perspective of the organ donor sister, this activated the where moral thinking occurs. When the viewer watched the clip from the perspective of the sick sister, more of the brain areas were activated which have been found to be involved in empathy and sympathy. Different areas of the brain can be used flexibly as needed," said Professor Iiro Jääskeläinen.

The viewer's assumption on whether the potential organ donor and the sick sister were biological siblings confirmed the differences in brain activation and eye analysis between different perspectives.

"Based on the eye tracking analysis, it was found that when the subject watches the film from the perspective of the potential organ donor, they look more at both protagonists than the subject who has been following the film from the sick sister's point of view," Mareike Bacha-Trams said.

At the same time, all looked more at the sick sister than the donor sister.

"The sick is the object of compassion. Following her gestures, and body language generated empathy," Mareike Bacha-Trams added.


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The family relationship between film characters clearly affects the reactions in the viewers' brain

More information: Mareike Bacha-Trams et al. Social perspective-taking shapes brain hemodynamic activity and eye movements during movie viewing, Social Cognitive and Affective Neuroscience (2020). DOI: 10.1093/scan/nsaa033
Provided by Aalto University
Citation: Moral reflection can be seen in brain activity and eye movements (2020, June 11) retrieved 30 September 2020 from https://medicalxpress.com/news/2020-06-moral-brain-eye-movements.html
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