|Antonia Hamilton's lab for Social Cognition|
In all our everyday interactions with other people, we watch their movements and rapidly decide how best to respond. Is that child going to knock over the water glass? Should I copy how the teacher moves her pen? Does the girl at the bar like looking at me?
The Hamilton lab aims to uncover the cognitive and brain mechanisms which allow us to make sense of other people's everyday actions and interact appropriately. We also test if these systems are compromised in people with autism.
Social interaction is critical to our everyday lives. A better scientific theory of how we understand and respond to other people will have benefits for many fields, including
Topics we are currently studying include the INTERACT project and those listed below
Social interaction beyond the lab
Using motion capture, it is now possible to record in detail how people move and behave during natural interactions. In a new project funded by the Leverhulme Trust, we will be exploring non-verbal behaviour during conversations, using motion capture and machine learning to understand how people interact in exquisite detail. In a related project, we are using fNIRS to record brain signals during social interactions outside of traditional lab settings.
Further reading: Pinti et al 2016.
Control of imitation
Mimicry is the tendency to unconsciously copy other people's actions. People mimic more in some situations than others, for example, people tend to mimic more when they are with someone they like. We are studying the cognitive and brain systems which control when and why you mimic. We have found that direct eye gaze rapidly enhances mimicry - you are faster to mimic the hand action of the girl on the right when she is looking at you. Brain imaging shows this effect is implemented in medial prefrontal cortex, which is an area linked to many other social functions.
Further reading: Wang et al 2011
Motivation and emotion
People's behaviour depends on their motivational state, but quantifying motivation has not been easy. We are developing new tasks to explore motivation and emotion, in relation to actions and theory of mind.
Further reading: Dubey et al 2015
Imagining what another person can see and considering what that person believes are critical components of 'theory of mind'. We are using traditional experiments, virtual reality and brain imaging to understand the relationship theory of mind, perspective taking and action observation.
Social interaction in autism
Autism is a neurodevelopmental condition affecting social and communication skills. However, it is not yet known which aspects of social interaction are difficult for people with autism or why. We are currently using behavioural and neuroimaging methods to explore these ideas.
In accordance with funding guidelines, published anonymised data collected in the Hamilton lab is available to other researchers for secondary analysis. Available datasets are described in our publications. To access data, please email me with details of the dataset you want and why. Access to some data (e.g. video) may be limited by issues of partipant confidentiality.
Institute of Cognitive Neuroscience, University College London, Alexandra House, 17 Queen Square, London, WC1N 3AR a.hamilton - at - ucl.ac.uk