Socialness is in the eye of the beholder
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Although people are generally predisposed to perceive interactions to be social even in unlikely contexts, they don’t always agree on exactly which information is social, according to a new study.
The findings show that much of the brain responds more strongly to information that is interpreted as social versus non-social. Published in the Journal of Neuroscience, the results contribute to research illustrating how humans are drawn to social connections.
It has long been known that humans tend to perceive social information, including in inanimate stimuli, such as seeing a face in a rocky outcropping, or interpreting the motion of two shapes as a social interaction. Previous studies on social perception using such geometric-shaped animations have often relied on labels assigned over 20 years ago by researchers that designated which animations should be classified as social versus random (non-social) motion. However, this new study employs a more subjective approach and is based on participants’ own reports of whether they perceive a given animation as social or not.
What the researchers say: “Through this research, we set out to understand how and why people can perceive the same dynamic social information differently,” said the lead author. “By taking into account people’s own perceptions, we can understand the underlying neural processes better.”
To examine the behavioral and neural correlates of “conscious” social perception, the research team used data from the social cognition task in the Human Connectome Project. With over 1,000 healthy adult participants, the project provides researchers with a large, public dataset to work from.
For the task, participants were asked to watch 10 animations of two or more shapes in motion that were 20 seconds in length while their brain activity was recorded in an fMRI scanner. The task was designed to be balanced, as five of the animations were meant to be social and the other five were not. After watching each animation, participants were asked to indicate how they perceived the content by selecting one of the following labels: social, non-social, or unsure.
The results demonstrated that participants were biased towards perceiving information as social in that they were more likely to declare an animation intended to be random as “social” than to declare one intended to be social as “random.” Furthermore, participants tended to express higher uncertainty on how to categorize animations when the stimuli were meant to be perceived as non-social, perhaps indicating a reluctance to declare content as non-social altogether.
“Humans depend on social structures to survive,” the researchers explained. “Our brains and minds might be primed to see things as social because it confers an evolutionary advantage. We’re likely tuned to see social information in our surroundings because the cost of missing a social interaction would likely be higher than that of falsely perceiving something as social.”
“Our fMRI results indicate that much of the brain cares about social information,” said the lead author. “We found that the neural response to social content occurs early both in time and in the cortical hierarchy.”
The findings show that the processing of social information occurs in early brain regions that are typically involved in processing visual information, including regions in the lateral occipital and temporal regions.
So, what? This is an interesting study which adds scientific understanding to the fact that humans are above all social animals. We define our experience in social terms. More than that we are relationship-dependent creatures—more so than any other mammal. We tend to assume relationships between inanimate things, where in fact there is none. In that light the results of this study make perfect sense.
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