Inescapable versus escapable shock modulates long-term potentiation in the rat hippocampus
Abstract
A group of rats was trained to escape low-intensity shock in a shuttle-box test, while another group of yoked controls could not escape but was exposed to the same amount and regime of shock. After 1 week of training, long-term potentiation (LTP) was measured in vitro in hippocampal slices. Exposure to uncontrollable shock massively impaired LTP relative to exposure to the same amount and regime of controllable shock. These results provide evidence that controllability modulates plasticity at the cellular-neuronal level.
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The defensive escape response has to be prevented; only then do trauma symptoms develop.
“The defensive escape response has to be prevented; only then do trauma symptoms develop (Shors et al., 1989).”
From Somatic experiencing: using interoception and proprioception as core elements of trauma therapy (2015) · cites this paper as Shors et al., 1989
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- Authors
- Shors, T. J., Seib, T. B., Levine, S., & Thompson, R. F.
- Affiliations
- University of Southern California (US)
- Stanford Medicine (US)
- ORCID
- Shors, Tracey J.
- Venue
- Science
- Published
- 1989-04-14
- Volume
- 244
- Issue
- 4901
- Pages
- 224-226
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1992704051
- Semantic Scholar
- 9dc21f7f365e807e2f4a7e24da61342b6bbc8a06
- Cited by
- 458
- References
- 42
- Citations by year
- 2025: 5 · 2024: 7 · 2023: 4 · 2022: 8 · 2021: 7 · 2020: 13 · 2019: 16 · 2018: 10 · 2017: 4 · 2016: 8 · 2015: 21 · 2014: 19 · 2013: 12 · 2012: 21
- FWCI
- 5.71
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institute of Mental Health (MH11936)
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD 02881)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
- Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
- Keywords
- long-term potentiation, hippocampus, escapable shock, controllability, hippocampal plasticity, shuttlebox avoidance, inescapable stress, neuroplasticity
- MeSH terms
- Animals, Avoidance Learning, Corticosterone, Electroshock, Escape Reaction, Hippocampus, Learning, Male, Memory, Neuronal Plasticity, Stress, Psychological, Rats
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