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I feel what I do: Relating interoceptive processes and reward-related behavior
Amanda C Marshall1, Antje Gentsch1, Anna-Lucia Blum1
1Department of Psychology, General and Experimental Psychology Unit, Ludwig-Maximilians University, D-80802, Munich, Germany.
Neuroimage
|February 19, 2019
Summary
Anticipating internal body states, like gain or loss, improves motor control and decision-making. This study shows predictable internal feelings enhance action regulation and outcome evaluation.
Area of Science:
- Neuroscience
- Cognitive Science
- Psychology
Background:
- Interoceptive signals influence action regulation and experience.
- Homeostatic feeling states can be induced through predictable contexts.
Purpose of the Study:
- To investigate if anticipating homeostatic feeling states affects motor behavior.
- To explore the link between interoception and motor control.
Main Methods:
- Participants engaged in a reward incentive paradigm with predictable and unpredictable outcome blocks.
- Electroencephalography (EEG) measured Heartbeat Evoked Potential (HEP) and Contingent Negative Variation (CNV).
- Feedback P3 amplitude, reaction times, and accuracy were recorded.
Main Results:
- Higher HEP and CNV amplitudes were observed in predictable blocks.
- Motor responses were faster and more accurate in predictable blocks.
- Predictable outcomes led to lower feedback P3 amplitudes, with pre-feedback HEP predicting P3.
Conclusions:
- Anticipating homeostatic feeling states enhances motor execution and outcome evaluation.
- Findings provide evidence for a joint processing structure between interoceptive and motor domains.
- This study is the first to empirically link interoception and motor control.
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