Dissociable dynamic effects of expectation during statistical learning
- Department of Education and Psychology, Freie Universität Berlin, Germany
- Berlin School of Mind and Brain, Germany
- Faculty of Psychology and Neuroscience, Maastricht University, Netherlands
- Neural Circuits and Cognition Lab, European Neuroscience Institute Göttingen—A Joint Initiative of the University Medical Center Göttingen and the Max Planck Institute for Multidisciplinary Sciences, Germany
- Perception and Plasticity Group, German Primate Center, Leibniz Institute for Primate Research, Germany
- Cognitive Neurobiology, Research Center One Health Ruhr, University Alliance Ruhr, Faculty of Biology and Biotechnology, Ruhr-University Bochum, Germany
Figures
Figure 1
Paradigm overview.
(A) A single trial, with two example images. Images were presented for 100 ms each with 800 ms interstimulus interval and an intertrial interval of 1300–2200 ms. Participants were required to respond to upside down images with button press; all upside down images were trailing. (B) Transitional probability matrix determining category pairs. Five leading categories and four trailing categories were used. Orange represents the 2:1 condition, and green represents the 1:2 (control) condition. Cells with dots represent the valid pairs, cells with Xs represent the invalid pairs, and empty cells represent non-existent pairs. (C) Reaction times across Valid, Invalid, and Neutral conditions. Asterisks indicate significant results at p<0.05 after correction for multiple comparisons.
Figure 2
Results of data analysis.
(A) Grand average ERP statistical analyses in a cluster of occipital channels at Channel Oz. Significant difference between valid and invalid trial amplitudes. (B) Topography plot of the t-values resulting from paired t-tests comparing Valid and Invalid EEG data at 150 ms. (C) SVM decoding results for Leading image sensory decoding. Dashed vertical line at 0 s indicates stimulus onset. (D) Decoding results for Trailing image sensory decoding. Dashed rectangles denote latencies of significant effects (pFWE<0.05). Dashed vertical line at 0 s indicates stimulus onset. (E) Decoding results for Trailing image memory decoding. Dashed rectangle denotes latencies of significant effects (pFWE<0.05). Dashed vertical line at 0 s indicates stimulus onset.
Figure 3
Analysis of validity effects on decoding over trial bins.
Error bars indicate SEM. Dashed horizontal lines indicate chance level. Asterisks indicate significant results at p<0.05 after correction for multiple comparisons. (A) Learning over time at 123–180 ms in sensory decoding. (B) Learning over time at 280–196 ms in sensory decoding. (C) Learning over time at 280–296 ms in memory decoding.
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Dissociable dynamic effects of expectation during statistical learning
eLife 13:RP103689.
https://doi.org/10.7554/eLife.103689.4
