Intentionsbasierte und sensorischbasierte Prädiktionen
Zusammenfassung der Projektergebnisse
Imagine playing a musical instrument, a piano for instance. In order to play a song, complex action-effect associations need to be activated and each key needs to be pressed with the intention to produce the correct sound. What are the mechanisms allowing these types of action predictions and what is the relationship between action-effect expectations and the incoming stimulation? These questions were at the core of the present project. To start with, we demonstrated that predictions based on action intention and the incoming sound regularities can be studied in a common framework and produce similar effects in the auditory processing hierarchy. This represented an important step, considering that action intention and sound regularity have been considered as prediction sources for a common mechanism, yet their effects have so far not been directly compared. We went one-step further and demonstrated the effects on intention-based predictions on the sensory processing of expected, but omitted sounds, a method that presumably allows obtaining a more direct measure of prediction. Regarding the joint effects of action intention and simple sound regularities extracted from the incoming stimulation, the two information types seem to integrate. Yet, in the context of more complex regularities that are more difficult to encode, additional information based on action-effect expectations increases the magnitude of the prediction-related responses. Together, the results of this project help better understand how intentional action modulates the sensory processing, a crucial element in explaining complex action-perception cycles such as those involved in learning to play a musical instrument.
Projektbezogene Publikationen (Auswahl)
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(2019). Action intention-based and stimulus regularity-based predictions: Same or different? Journal of Cognitive Neuroscience, 31(12), 1917-1932
Korka, B., Schröger, E., & Widmann, A.
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(2020). What exactly is missing here? The sensory processing of unpredictable omissions is modulated by the specificity of expected action‐effects. European Journal of Neuroscience, 52(12), 4667-4683
Korka, B., Schröger, E., & Widmann, A.
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(2021). The encoding of stochastic regularities is facilitated by action-effect predictions. Scientific Reports, 11, 6790
Korka, B., Schröger, E., & Widmann, A.
