The dynamics of action and interaction perception in the human brain


March 23, 2016 - 1:00pm
Northwest 243
About the Speaker
Leyla Isik (Kreiman Lab)

Humans are a fundamentally social species, with extensive cortical territory allocated to perceiving and understanding, and interacting with other people. From just a glimpse, we make fine-grained perceptual discriminations about other people, their actions, and their interactions with each other, yet we know very little about the neural mechanisms underlying these abilities. Here we investigate when, where and how the brain computes representations of other people’s actions and interactions. In the first part of this talk, I will discuss work studying the neural representations of actor and view invariant action recognition. Using magnetoencephalography (MEG) decoding and a novel stimulus set of well-controlled videos of five actions (run, walk, jump, eat and drink), performed by five actors and five viewpoints, we can isolate the neural correlates of actor and view invariant action recognition. In the second part of this talk, I will discuss extensions of this work using more naturalistic stimuli and human intracranial data to study the neural basis of social interaction perception.