Diminished Social Memory and Hippocampal Correlates of Social Interactions in Chronic Social Defeat Stress Susceptibility
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Susceptibility to chronic stress has been associated with depression, a mood disorder that highly implicates the hippocampus. Hippocampal contribution to stress susceptibility has been supported by findings in mice following chronic social defeat stress (CSDS). However, little is known about the role of hippocampal activity in determining the development of stress susceptibility. We used the UCLA Miniscope to longitudinally measure the activity of dorsal CA1 hippocampal neurons during CSDS. In addition to examining the representation of social information by these neurons, we compared social memory in mice that were either susceptible or resilient to CSDS. We observed more stable dorsal CA1 correlates of social interaction and social memory in CSDS-resilient mice. Such changes were absent in CSDS-susceptible mice and accompanied by greater social memory impairments. CSDS susceptibility may be supported by hippocampal social cognitive processes, as reflected in diminished hippocampal representations of social information and greater impairment in social memory in suspectible compared with resilient mice. Chronic social stress is a risk factor for depression. Vulnerability to chronic social stress may be related to changes in social information processing by the hippocampus, a brain region that is crucial for social memory formation. Using a miniature microscope to compare hippocampal activity of mice that are either susceptible or resilient to chronic social stress, we found poorer hippocampal representation of social information and weaker social memory in susceptible than in resilient mice. Thus, the vulnerability to develop depression may be related to inaccurate hippocampal processing of social information.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.001 | 0.003 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it