Two types of motifs enhance human recall and generalization of long sequences
Abstract Whether it is listening to a piece of music, learning a new language, or solving a mathematical equation, people often acquire abstract notions in the sense of motifs and variables—manifested in musical themes, grammatical categories, or mathematical symbols. How do we create abstract repre...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Communications Psychology |
| Online Access: | https://doi.org/10.1038/s44271-024-00180-8 |
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| _version_ | 1841544305475321856 |
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| author | Shuchen Wu Mirko Thalmann Eric Schulz |
| author_facet | Shuchen Wu Mirko Thalmann Eric Schulz |
| author_sort | Shuchen Wu |
| collection | DOAJ |
| description | Abstract Whether it is listening to a piece of music, learning a new language, or solving a mathematical equation, people often acquire abstract notions in the sense of motifs and variables—manifested in musical themes, grammatical categories, or mathematical symbols. How do we create abstract representations of sequences? Are these abstract representations useful for memory recall? In addition to learning transition probabilities, chunking, and tracking ordinal positions, we propose that humans also use abstractions to arrive at efficient representations of sequences. We propose and study two abstraction categories: projectional motifs and variable motifs. Projectional motifs find a common theme underlying distinct sequence instances. Variable motifs contain symbols representing sequence entities that can change. In two sequence recall experiments, we train participants to remember sequences with projectional and variable motifs, respectively, and examine whether motif training benefits the recall of novel sequences sharing the same motif. Our result suggests that training projectional and variables motifs improve transfer recall accuracy, relative to control groups. We show that a model that chunks sequences in an abstract motif space may learn and transfer more efficiently, compared to models that learn chunks or associations on a superficial level. Our study suggests that humans construct efficient sequential memory representations according to the two types of abstraction we propose, and creating these abstractions benefits learning and out-of-distribution generalization. Our study paves the way for a deeper understanding of human abstraction learning and generalization. |
| format | Article |
| id | doaj-art-aaf34e652e1e472aa987e3024141fe78 |
| institution | Kabale University |
| issn | 2731-9121 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Psychology |
| spelling | doaj-art-aaf34e652e1e472aa987e3024141fe782025-01-12T12:38:22ZengNature PortfolioCommunications Psychology2731-91212025-01-013111210.1038/s44271-024-00180-8Two types of motifs enhance human recall and generalization of long sequencesShuchen Wu0Mirko Thalmann1Eric Schulz2Max Planck Institute for Biological CyberneticsHelmholtz Institute for Human-Centered AIHelmholtz Institute for Human-Centered AIAbstract Whether it is listening to a piece of music, learning a new language, or solving a mathematical equation, people often acquire abstract notions in the sense of motifs and variables—manifested in musical themes, grammatical categories, or mathematical symbols. How do we create abstract representations of sequences? Are these abstract representations useful for memory recall? In addition to learning transition probabilities, chunking, and tracking ordinal positions, we propose that humans also use abstractions to arrive at efficient representations of sequences. We propose and study two abstraction categories: projectional motifs and variable motifs. Projectional motifs find a common theme underlying distinct sequence instances. Variable motifs contain symbols representing sequence entities that can change. In two sequence recall experiments, we train participants to remember sequences with projectional and variable motifs, respectively, and examine whether motif training benefits the recall of novel sequences sharing the same motif. Our result suggests that training projectional and variables motifs improve transfer recall accuracy, relative to control groups. We show that a model that chunks sequences in an abstract motif space may learn and transfer more efficiently, compared to models that learn chunks or associations on a superficial level. Our study suggests that humans construct efficient sequential memory representations according to the two types of abstraction we propose, and creating these abstractions benefits learning and out-of-distribution generalization. Our study paves the way for a deeper understanding of human abstraction learning and generalization.https://doi.org/10.1038/s44271-024-00180-8 |
| spellingShingle | Shuchen Wu Mirko Thalmann Eric Schulz Two types of motifs enhance human recall and generalization of long sequences Communications Psychology |
| title | Two types of motifs enhance human recall and generalization of long sequences |
| title_full | Two types of motifs enhance human recall and generalization of long sequences |
| title_fullStr | Two types of motifs enhance human recall and generalization of long sequences |
| title_full_unstemmed | Two types of motifs enhance human recall and generalization of long sequences |
| title_short | Two types of motifs enhance human recall and generalization of long sequences |
| title_sort | two types of motifs enhance human recall and generalization of long sequences |
| url | https://doi.org/10.1038/s44271-024-00180-8 |
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