08:30 - 10:00
Tue-A8-Talk IV-
Tue-Talk IV-
Room: A8
Chair/s:
Shaheed Azaad
Contemporary action understanding research has shown that cues guide our interpretation and prediction of others’ actions. This group of talks seeks to show the range kinds of cues that shape our action understanding, and the mechanisms by which they do so.

Mechanisms underlying forward simulation in action understanding
Dr Francesco Iani – Universita Di Torino
During action observation, people represent the observed action unfolding in time and this representation speeds up the recognition of the next action states compared to the backward states. In this talk we will discuss the nature of this mental stimulation as well as the possible mechanisms underlying action anticipation. We hypothesize that there are at least two processes: (1) an action prediction mechanism, by which people simulate the next states of the observed action through a representation of the action unfolding in time; (2) a goal prediction mechanism, by which people infer the final goal of the observed action based on the physical properties of the object.

Cues to other's higher-order mental states inform action predictions
Dr Katrina McDonough – University of Aberdeen
How we perceive and interpret the actions of others depends not only on action observations, but also action predictions. Here we show that cues to other's higher-order mental states inform predictions of their upcoming behaviour and guide action perception.

Communication through teaching: How expert pianists and novice students interact
through sound

Atsuko Tominaga – Central European University
In my talk, I will discuss how expert pianists produce and adapt teaching signals through their performances and how novice students detect such cues by listening to teachers’ performances.

Others’ social contexts guide our predictions of their actions
Dr Shaheed Azaad – Postdoctoral Researcher, Central European University
Recent work on action prediction has shown that contextual, non-kinematic, cues can inform our predictions of others’ actions. In this series of experiments, we show that others’ social contexts similarly guide action prediction.
The influence of higher-order action predictions on action perception
Tue-A8-Talk IV-02
Presented by: Katrina McDonough
Katrina McDonough, Patric Bach
School of Psychology, University of Aberdeen, UK
Recent proposals suggest that higher-order knowledge about others’ goals and intentions shapes the perceptual experience of their behaviour. To test this idea, we showed participants videos of an actor reaching efficiently, straight towards an object or arched over an obstacle, or inefficiently, straight towards an obstacle or arched over an empty space. The hand suddenly disappeared, and participants indicated its last seen position. Perceptual judgements were consistently biased towards action expectations, such that straight reaches were perceived to have reached higher when there was an obstacle to overcome compared to no obstacle, and arched reaches were perceived lower when there was no obstacle. Importantly, these biases depended (1) on the actor being able to see the scene (instead of wearing a blindfold), and on (2) on the actor’s (potentially false) belief about whether an obstacle was present. This shows that action expectations from higher-order processing of theory of mind guide action perception and contribute to the understanding of other peoples’ actions.
Keywords: action prediction, action perception, predictive-processing