Sex differences in the context dependency of episodic memory
Context contributes to multiple aspects of human episodic memory including segmentation and retrieval. The present studies tested if, in adult male and female mice, context influences the encoding of odors encountered in a single unsupervised sampling session of the type used for the routine acquisi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-03-01
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| Series: | Frontiers in Behavioral Neuroscience |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fnbeh.2024.1349053/full |
| _version_ | 1797270753080508416 |
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| author | Aliza A. Le Linda C. Palmer Jasmine Chavez Christine M. Gall Christine M. Gall Gary Lynch Gary Lynch |
| author_facet | Aliza A. Le Linda C. Palmer Jasmine Chavez Christine M. Gall Christine M. Gall Gary Lynch Gary Lynch |
| author_sort | Aliza A. Le |
| collection | DOAJ |
| description | Context contributes to multiple aspects of human episodic memory including segmentation and retrieval. The present studies tested if, in adult male and female mice, context influences the encoding of odors encountered in a single unsupervised sampling session of the type used for the routine acquisition of episodic memories. The three paradigms used differed in complexity (single vs. multiple odor cues) and period from sampling to testing. Results show that males consistently encode odors in a context-dependent manner: the mice discriminated novel from previously sampled cues when tested in the chamber of initial cue sampling but not in a distinct yet familiar chamber. This was independent of the interval between cue encounters or the latency from initial sampling to testing. In contrast, female mice acquired both single cues and the elements of multi-cue episodes, but recall of that information was dependent upon the surrounding context only when the cues were presented serially. These results extend the list of episodic memory features expressed by rodents and also introduce a striking and unexpected sex difference in context effects. |
| first_indexed | 2024-03-07T15:32:25Z |
| format | Article |
| id | doaj.art-354083d0b2264f3d936103e6265d0e59 |
| institution | Directory Open Access Journal |
| issn | 1662-5153 |
| language | English |
| last_indexed | 2024-04-25T02:09:16Z |
| publishDate | 2024-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Behavioral Neuroscience |
| spelling | doaj.art-354083d0b2264f3d936103e6265d0e592024-03-07T12:55:04ZengFrontiers Media S.A.Frontiers in Behavioral Neuroscience1662-51532024-03-011810.3389/fnbeh.2024.13490531349053Sex differences in the context dependency of episodic memoryAliza A. Le0Linda C. Palmer1Jasmine Chavez2Christine M. Gall3Christine M. Gall4Gary Lynch5Gary Lynch6Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA, United StatesDepartment of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA, United StatesDepartment of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA, United StatesDepartment of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA, United StatesDepartment of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, United StatesDepartment of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA, United StatesDepartment of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, United StatesContext contributes to multiple aspects of human episodic memory including segmentation and retrieval. The present studies tested if, in adult male and female mice, context influences the encoding of odors encountered in a single unsupervised sampling session of the type used for the routine acquisition of episodic memories. The three paradigms used differed in complexity (single vs. multiple odor cues) and period from sampling to testing. Results show that males consistently encode odors in a context-dependent manner: the mice discriminated novel from previously sampled cues when tested in the chamber of initial cue sampling but not in a distinct yet familiar chamber. This was independent of the interval between cue encounters or the latency from initial sampling to testing. In contrast, female mice acquired both single cues and the elements of multi-cue episodes, but recall of that information was dependent upon the surrounding context only when the cues were presented serially. These results extend the list of episodic memory features expressed by rodents and also introduce a striking and unexpected sex difference in context effects.https://www.frontiersin.org/articles/10.3389/fnbeh.2024.1349053/fullepisodic memoryunsupervised learningcontextmousebehaviorsex differences |
| spellingShingle | Aliza A. Le Linda C. Palmer Jasmine Chavez Christine M. Gall Christine M. Gall Gary Lynch Gary Lynch Sex differences in the context dependency of episodic memory Frontiers in Behavioral Neuroscience episodic memory unsupervised learning context mouse behavior sex differences |
| title | Sex differences in the context dependency of episodic memory |
| title_full | Sex differences in the context dependency of episodic memory |
| title_fullStr | Sex differences in the context dependency of episodic memory |
| title_full_unstemmed | Sex differences in the context dependency of episodic memory |
| title_short | Sex differences in the context dependency of episodic memory |
| title_sort | sex differences in the context dependency of episodic memory |
| topic | episodic memory unsupervised learning context mouse behavior sex differences |
| url | https://www.frontiersin.org/articles/10.3389/fnbeh.2024.1349053/full |
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