TY  - JOUR
AB  - While prediction errors have been established to instigate learning through model adaptation, recent studies have stressed the role of model-compliant events in predictive processing. Specifically, probabilistic information at critical points in time (so-called checkpoints) has been suggested to be sampled in order to evaluate the internal model, particularly in uncertain contexts. This way, initial model-based expectations are iteratively reaffirmed under uncertainty, even in the absence of prediction errors. Using electroencephalography (EEG), the present study aimed to investigate the interplay of such global uncertainty information and local adjustment cues prompting on-line adjustments of expectations. Within a stream of single digits, participants were to detect ordered sequences (i.e., 3-4-5-6-7) that had a regular length of five digits and were occasionally extended to seven digits. Over time, these extensions were either rare (low irreducible uncertainty) or frequent (high uncertainty) and could be unexpected or indicated by incidental colour cues. Accounting for cue information, an N400 component was revealed as the correlate of locally unexpected (vs expected) outcomes, reflecting effortful integration of incongruous information. As for model-compliant information, multivariate pattern decoding within the P3b time frame demonstrated effective exploitation of local (adjustment cues vs non-informative analogues) and global information (high vs low uncertainty regular endings) sampled from probabilistic events. Finally, superior fit of a global model (disregarding local adjustments) compared to a local model (including local adjustments) in a representational similarity analysis underscored the precedence of global reference frames in hierarchical predictive processing. Overall, results suggest that just like error-induced model adaptation, model evaluation is not limited to either local or global information. Following the hierarchical organisation of predictive processing, model evaluation too can occur at several levels of the processing hierarchy.
AU  - Kluger, Daniel
AU  - Broers, Nico
AU  - Roehe, Marlen A.
AU  - Wurm, Moritz F.
AU  - Busch, Niko
AU  - Schubotz, Ricarda Ines
DA  - 2020-04-13
DO  - 10.17879/23099504108
KW  - Electroencephalography
KW  - Event-related potentials
KW  - Behavior
KW  - Learning
KW  - Functional magnetic resonance imaging
KW  - Forecasting
KW  - Electrophysiology
KW  - Sensory perception
LA  - eng
N1  - PLoS ONE 15 (2020) 4, e0231021, 1-17
N1  - Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
PY  - 2020-04-13
TI  - Exploitation of local and global information in predictive processing
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:6-13099535470
Y2  - 2024-11-22T04:30:07
ER  -