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Related Concept Videos

False Memories01:18

False Memories

False memories represent a cognitive distortion in which individuals recall events that did not happen, or remember them in an altered form. This phenomenon highlights the brain's constructive nature in processing and recalling memories, emphasizing that memory is not a perfect representation of past events but rather a dynamic reconstruction influenced by various factors.
One primary source of false memories is misattribution, where individuals incorrectly associate external information with...
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The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence categorization, a person will feel...

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Related Experiment Video

Updated: Jun 15, 2026

Observational Fear as a Model of Affective Empathy in Mice
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Published on: November 22, 2024

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CircSATB2 modulates fear extinction memory via Robo3-driven synaptic plasticity.

Ziyue Xu1, Jichun Shi1, Runming Liu1

  • 1Brain Research Center, Zhongnan Hospital of Wuhan University, Wuhan, China; Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China.

Brain Research Bulletin
|December 15, 2024
PubMed
Summary
This summary is machine-generated.

Circular Special AT-rich Sequence Binding Protein 2 (circSatb2) enhances fear extinction memory by increasing Roundabout Guidance Receptor 3 (Robo3) transcription, promoting synaptic plasticity and memory formation.

Keywords:
Fear extinctionMemoryRobo3Synaptic plasticitycircSatb2

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Genetics

Background:

  • Circular RNAs (circRNAs) are stable regulatory molecules abundant in the brain.
  • The function of circRNAs in fear extinction (EXT) memory is not well understood.
  • Investigating novel regulatory mechanisms in memory processes is crucial for understanding brain function.

Purpose of the Study:

  • To elucidate the role of Circular Special AT-rich Sequence Binding Protein 2 (circSatb2) in fear extinction memory.
  • To explore the molecular mechanisms by which circSatb2 influences memory formation.
  • To identify potential therapeutic targets for memory impairment disorders.

Main Methods:

  • Overexpression of circSatb2 using lentivirus in the mouse infralimbic prefrontal cortex (ILPFC).
  • Fear extinction training and testing in mice.
  • RNA sequencing (RNA-seq) and bioinformatics analysis.
  • RT-qPCR validation.
  • Confocal microscopy for assessing neuronal morphology and dendritic spine density.

Main Results:

  • circSatb2 plays an essential role in fear extinction memory formation.
  • circSatb2 enhances the transcription of Roundabout Guidance Receptor 3 (Robo3).
  • Increased Robo3 transcription leads to enhanced dendritic spine formation and synaptic plasticity.

Conclusions:

  • circSatb2 promotes fear extinction memory by upregulating Robo3 transcription.
  • circSatb2 enhances synaptic plasticity, contributing to memory consolidation.
  • circSatb2 represents a potential therapeutic target for memory-related disorders.