Action Recognition in Context
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2020-07-01
Language
en
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Abstract
As humans, our everyday life is inherently social. To interact in a world shaped by social
interaction, it is crucial to recognise and understand other agent’s actions. While
action recognition is widely studied in psychology and cognitive neuroscience, contextual
information, for instance the scene an action is embedded in, is often left out.
There is promising evidence underlining the importance of context and its congruency
on action recognition. The neuronal correlates of this context influence on action recognition
are, however, not clear yet. To test action recognition in context, we designed
a novel task in which first an indoor scence context image alone is presented, and then
motion-captured action videos are superimposed on the image followed by a forcedchoice
task. We tested the new paradigm first behaviourally (N=25), and then used
functional Magnetic Resonance Imaging (fMRI) to investigate brain activation while
participants performed the task. The behavioural results show a context-congruency
effects in recognition accuracy, with significant effects of incongruent-congruent and
incongruent-neutral context settings on action recognition. For the fMRI part we at
present have a sample of N=8 participants, which makes the statistical tests intended
impossible. Design, analysis pipeline and expectations of this fMRI paradigm with decoding
techniques are still discussed in the present thesis.
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Faculteit der Sociale Wetenschappen