Changing behaviour in different social interactions

Changing behaviour in different social interactions

Changing one’s behaviour in different social interactions is child’s play according to researchers from Doshisha University in Japan

Researchers at Doshisha University’s Centre for Baby Science propose a new cognitive framework explaining how infants modulate their behaviour as per the social context.

Society and social interaction play a key role in life for humans. The wellbeing of a person greatly depends upon their ability to be part of complex socio-cultural institutions.

Even during infancy, humans rely on their social interactions with other humans for social and cultural learning, subsequent adaptation to different social environments, and ultimately, survival.

Several studies have shown that infants do not respond automatically or reflexively to external cues, but instead adaptively modulate their social behaviours to suit their social context.

Gaze-following is one such behaviour that infants modulate based on their surroundings. However, a few studies have shown that infants’ gaze-following can occur independently of their social context.

Consequently, the empirical evidence explaining contextual modulation of infants’ social behaviour is inconsistent. Therefore, there is a need for a theoretical framework that can effectively describe the mechanism underlying such behavioural modulations.

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Toddler

Communicative behaviour

 

To this end, a new study by Dr Mitsuhiko Ishikawa – at the Japan Society for the Promotion of Science (JSPS) research fellow at Doshisha University’s Centre for Baby Science – uses contextual modulation of gaze-following behaviour as a model system to evaluate how infants contextually modulate their communicative behaviour.

Ishikawa explained: “We proposed that, from infancy, humans integrate perceptual information, memories and current physiological state to determine the optimal behaviour in any social context through a value-driven decision-making process.”

This means that infants choose between different actions under every social context by assessing which action will result in the most rewarding outcome, such as acquiring new information or a social incentive.

Ishikawa, along with Professor Atsushi Senju from the Research Centre for Child Mental Development, Hamamatsu University School of Medicine, also proposed that external cues do not directly determine infants’ social behaviour.

To support these hypotheses, both researchers built upon their existing empirical research to design the ‘action value calculator model’, which describes the cognitive processes involved in how infants decide to behave during different social interactions.

 

Current social situation

 

This model suggests that infants first encode social cues in each context. These can include any kind of social stimuli, including faces, gestures, and speech.

Then the infants process these social stimuli to form a representation of the current social situation. Thereafter, their brains calculate and compare the values of different alternative actions within a particular social situation.

Once these action values are compared, infants finally choose to perform the optimal action that has the highest action value, that is, one that will result in the most suitable response/ outcome in that social situation.

The entire process of action value calculation and comparison can also be influenced by memory of past experiences and internal states, such as physical or psychological signals of the body.

Moreover, these action values can be updated based on the feedback received upon performing that action.

Since social situations are often dynamic and can include interactions, this process becomes iterative. Thus, once an action is performed, the social context is updated and processed from the start in order to perform another action.

 

Inspire empirical research

 

But how do infants learn how to assign values to their actions based on their social situation?

According to the researchers, infants are predisposed since birth to engage with social stimuli. Then, with experience, they learn the likely combinations of actions and their outcomes to determine which actions work optimally under which social context.

Additionally, individual differences in social experiences, such as familial environment, can further shape how infants assign action values. For example, deaf infants raised by deaf parents exhibit more gaze-following behaviour than hearing infants raised by hearing parents.

Essentially, this value-based model highlights the significance of the internal value calculation and decision-making process in infants and supports studies that suggest that infants contextually modulate their social behaviours instead of following external cues.

Envisioning how this research can be expanded further, according to Ishikawa: “Our cognitive model could inspire empirical research of infants’ social behaviour, including social actions other than gaze-following, from the perspective of value-based decision-making.

“This could also be linked to mechanisms that shape individual and cultural differences in social behaviour, and perhaps improve our understanding of the fundamental question of how humans interact socially in their daily lives.”

The study is published in Trends in Cognitive Sciences.

Image 1: Infants choose between different actions under every social context by assessing which action will result in the most rewarding outcome, such as acquiring new information or a social incentive.

Image 2: A new cognitive study has proposed an action value calculator model to explain how infants modulate their social behaviours based on the social context. © Mitsuhiko Ishikawa, Doshisha University, Japan. (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode.

 

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