Evidence map›Paper›PMID 38017229›Full record

ArticleMolecular psychiatry2024

Intrinsic plasticity of Purkinje cell serves homeostatic regulation of fear memory.

Jaegeon Lee, Seung Ha Kim, Dong Cheol Jang, Mirae Jang, Myeong Seong Bak, Hyun Geun Shim, Yong-Seok Lee, Sang Jeong Kim

Abstract read
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In one paragraph

Article in Molecular psychiatry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Flexible Coupling of Synaptic and Intrinsic Plasticity in a Cerebellar Circuit.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  4. Review
  5. Input-Specific Organization of Intrinsic Excitability Expands Coding Capacity of Fast-Spiking Auditory Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Jaegeon LeeDepartment of Physiology, Seoul National University College of Medicine, Seoul, 03080, Korea.ORCID 0000-0001-7865-3966
Seung Ha KimDepartment of Physiology, Seoul National University College of Medicine, Seoul, 03080, Korea.
Dong Cheol JangDepartment of Physiology, Seoul National University College of Medicine, Seoul, 03080, Korea.
Mirae JangDepartment of Physiology, Seoul National University College of Medicine, Seoul, 03080, Korea.ORCID 0000-0003-2979-9568
Myeong Seong BakDepartment of Physiology, Seoul National University College of Medicine, Seoul, 03080, Korea.
Hyun Geun ShimDepartment of Physiology, Seoul National University College of Medicine, Seoul, 03080, Korea.
Yong-Seok LeeDepartment of Physiology, Seoul National University College of Medicine, Seoul, 03080, Korea.ORCID 0000-0002-6217-9574
Sang Jeong KimDepartment of Physiology, Seoul National University College of Medicine, Seoul, 03080, Korea. sangjkim@snu.ac.kr.ORCID 0000-0001-8931-3713

Funding

National Research Foundation of Korea (NRF) 2016R1D1A1A02937282National Research Foundation of Korea (NRF) 2018R1A5A2025964National Research Foundation of Korea (NRF) 2022M3E5E8017970
6 · The paper itself

Abstract

Two forms of plasticity, synaptic and intrinsic, are neural substrates for learning and memory. Abnormalities in homeostatic plasticity cause severe neuropsychiatric diseases, such as schizophrenia and autism. This suggests that the balance between synaptic transmission and intrinsic excitability is important for physiological function in the brain. Despite the established role of synaptic plasticity between parallel fiber (PF) and Purkinje cell (PC) in fear memory, its relationship with intrinsic plasticity is not well understood. Here, patch clamp recording revealed depression of intrinsic excitability in PC following auditory fear conditioning (AFC). Depressed excitability balanced long-term potentiation of PF-PC synapse to serve homeostatic regulation of PF-evoked PC firing. We then optogenetically manipulated PC excitability during the early consolidation period resulting in bidirectional regulation of fear memory. Fear conditioning-induced synaptic plasticity was also regulated following optogenetic manipulation. These results propose intrinsic plasticity in PC as a novel mechanism of fear memory and elucidate that decreased intrinsic excitability in PC counterbalances PF-PC synaptic potentiation to maintain fear memory in a normal range.

Indexed as

FearHomeostasisMemoryNeuronal PlasticityOptogeneticsPurkinje CellsAnimalsConditioning, ClassicalLong-Term PotentiationMaleMiceMice, Inbred C57BLPatch-Clamp TechniquesSynapsesSynaptic Transmission

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.