Dynamic expectations: Behavioral and electrophysiological evidence of sub-second updates in reward predictions
Abstract Expectations are often dynamic: sports fans know that expectations are rapidly updated as games unfold. Yet expectations have traditionally been studied as static. Here we present behavioral and electrophysiological evidence of sub-second changes in expectations using slot machines as a cas...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-08-01
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| Series: | Communications Biology |
| Online Access: | https://doi.org/10.1038/s42003-023-05199-x |
| _version_ | 1797557167021096960 |
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| author | Déborah Marciano Ludovic Bellier Ida Mayer Michael Ruvalcaba Sangil Lee Ming Hsu Robert T. Knight |
| author_facet | Déborah Marciano Ludovic Bellier Ida Mayer Michael Ruvalcaba Sangil Lee Ming Hsu Robert T. Knight |
| author_sort | Déborah Marciano |
| collection | DOAJ |
| description | Abstract Expectations are often dynamic: sports fans know that expectations are rapidly updated as games unfold. Yet expectations have traditionally been studied as static. Here we present behavioral and electrophysiological evidence of sub-second changes in expectations using slot machines as a case study. In Study 1, we demonstrate that EEG signal before the slot machine stops varies based on proximity to winning. Study 2 introduces a behavioral paradigm to measure dynamic expectations via betting, and shows that expectation trajectories vary as a function of winning proximity. Notably, these expectation trajectories parallel Study 1’s EEG activity. Studies 3 (EEG) and 4 (behavioral) replicate these findings in the loss domain. These four studies provide compelling evidence that dynamic sub-second updates in expectations can be behaviorally and electrophysiologically measured. Our research opens promising avenues for understanding the dynamic nature of reward expectations and their impact on cognitive processes. |
| first_indexed | 2024-03-10T17:13:30Z |
| format | Article |
| id | doaj.art-c459c9e5604e4420a5c1829d63c487c4 |
| institution | Directory Open Access Journal |
| issn | 2399-3642 |
| language | English |
| last_indexed | 2024-03-10T17:13:30Z |
| publishDate | 2023-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Biology |
| spelling | doaj.art-c459c9e5604e4420a5c1829d63c487c42023-11-20T10:34:42ZengNature PortfolioCommunications Biology2399-36422023-08-016111410.1038/s42003-023-05199-xDynamic expectations: Behavioral and electrophysiological evidence of sub-second updates in reward predictionsDéborah Marciano0Ludovic Bellier1Ida Mayer2Michael Ruvalcaba3Sangil Lee4Ming Hsu5Robert T. Knight6Helen Wills Neuroscience Institute, University of California, BerkeleyHelen Wills Neuroscience Institute, University of California, BerkeleyHelen Wills Neuroscience Institute, University of California, BerkeleyHelen Wills Neuroscience Institute, University of California, BerkeleyHelen Wills Neuroscience Institute, University of California, BerkeleyHelen Wills Neuroscience Institute, University of California, BerkeleyHelen Wills Neuroscience Institute, University of California, BerkeleyAbstract Expectations are often dynamic: sports fans know that expectations are rapidly updated as games unfold. Yet expectations have traditionally been studied as static. Here we present behavioral and electrophysiological evidence of sub-second changes in expectations using slot machines as a case study. In Study 1, we demonstrate that EEG signal before the slot machine stops varies based on proximity to winning. Study 2 introduces a behavioral paradigm to measure dynamic expectations via betting, and shows that expectation trajectories vary as a function of winning proximity. Notably, these expectation trajectories parallel Study 1’s EEG activity. Studies 3 (EEG) and 4 (behavioral) replicate these findings in the loss domain. These four studies provide compelling evidence that dynamic sub-second updates in expectations can be behaviorally and electrophysiologically measured. Our research opens promising avenues for understanding the dynamic nature of reward expectations and their impact on cognitive processes.https://doi.org/10.1038/s42003-023-05199-x |
| spellingShingle | Déborah Marciano Ludovic Bellier Ida Mayer Michael Ruvalcaba Sangil Lee Ming Hsu Robert T. Knight Dynamic expectations: Behavioral and electrophysiological evidence of sub-second updates in reward predictions Communications Biology |
| title | Dynamic expectations: Behavioral and electrophysiological evidence of sub-second updates in reward predictions |
| title_full | Dynamic expectations: Behavioral and electrophysiological evidence of sub-second updates in reward predictions |
| title_fullStr | Dynamic expectations: Behavioral and electrophysiological evidence of sub-second updates in reward predictions |
| title_full_unstemmed | Dynamic expectations: Behavioral and electrophysiological evidence of sub-second updates in reward predictions |
| title_short | Dynamic expectations: Behavioral and electrophysiological evidence of sub-second updates in reward predictions |
| title_sort | dynamic expectations behavioral and electrophysiological evidence of sub second updates in reward predictions |
| url | https://doi.org/10.1038/s42003-023-05199-x |
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