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Sci Rep. 2018 Feb 1;8(1):2027. doi: 10.1038/s41598-018-20200-y.

Cultural effects on computational metrics of spatial and temporal context.

Author information

1
Institute for Conflict, Cooperation and Security, University of Birmingham, Birmingham, UK.
2
Department of Experimental Psychology, University of Oxford, Oxford, UK.
3
Department of Psychiatry, University of Wisconsin-Madison, Madison, USA.
4
Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, Cardiff, UK.
5
Institute of Cognitive Neuroscience, University College London, London, UK.
6
Wellcome Trust Centre for Neuroimaging, University College London, London, UK.
7
Institute of Cognitive Neuroscience, University College London, London, UK. rebecca.lawson@ucl.ac.uk.
8
Wellcome Trust Centre for Neuroimaging, University College London, London, UK. rebecca.lawson@ucl.ac.uk.
9
Department of Psychology, University of Cambridge, Cambridge, UK. rebecca.lawson@ucl.ac.uk.

Abstract

The concept of "prediction error" - the difference between what occurred and was expected - is key to understanding the cognitive processes of human decision making. Expectations have to be learned so the concept of prediction error critically depends on context, specifically the temporal context of probabilistically related events and their changes across time (i.e. volatility). While past research suggests context differently affects some cognitive processes in East Asian and Western individuals, it is currently unknown whether this extends to computationally-grounded measures of learning and prediction error. Here we compared Chinese and British nationals in an associative learning task that quantifies behavioural effects of prediction error, and-through a hierarchical Bayesian learning model-also captures how individuals learn about probabilistic relationships and their volatility. For comparison, we also administered a psychophysical task, the tilt illusion, to assess cultural differences in susceptibility to spatial context. We found no cultural differences in the effect of spatial context on perception. In the domain of temporal context there was no effect of culture on sensitivity to prediction error, or learning about volatility, but some suggestion that Chinese individuals may learn more readily about probabilistic relationships.

PMID:
29391522
PMCID:
PMC5794846
DOI:
10.1038/s41598-018-20200-y
[Indexed for MEDLINE]
Free PMC Article

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