September 09, 2011 16:00 - 17:30
BSI Central Building 1F Seminar Room
Abstract: The commonest form of social cognition is the process of learning about the world by observing others. Such learning is seen across many species from fruit flies and fish to merkats and humans. The behaviour of others is a richer source than other kinds of public information about the world, since much of the work of filtering relevant and irrelevant aspects has already been done. The mechanism underlying observational learning is likely to be a form of associative value learning. For example, the value of an object will increase if it is approached by others and decrease if it is avoided. A more advanced form of social cognition is the process by which we recognise agents and read their intentions. By definition, an agent performs actions in order to achieve a specific goal. In other words the actions are caused by the agent’s intentions. The mechanism of predictive coding can be applied to observed actions in order to estimate the underlying intentions. Prediction errors play a critical role in this mechanism. Because of errors, we constantly have to adjust our actions in order to attain our goals and such adjustments are the mark of an agent. Thus the mechanism that infers intentions also acts as an agency detector. Posterior STS/TPJ plays a key role in this mechanism. The most advanced form of social cognition, which may be uniquely human, occurs in interactions in which two or more agents share goals and intentions. Successful sharing of intentions requires meta-representation since A needs to represent B’s representation of A’s intention. Medial prefrontal cortex plays a major role in this mechanism, but the computational details remain to be elucidated. *Followed by a reception in the Masao Ito Lounge, from 17:30~.
- Open to Public
- Atsushi Iriki
Name: Seminar Committee
Phone: 048-462-1111, Ext. 7522