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Neurogenic Interventions for Fear Memory via Modulation of the Hippocampal Function and Neural Circuits

期刊

出版社

MDPI
DOI: 10.3390/ijms23073582

关键词

fear memory; post-traumatic stress disorder; hippocampus; amygdala; medial prefrontal cortex; neural circuit

资金

  1. Korea Institute of Oriental Medicine (KIOM), South Korea [KSN2211010]
  2. National Research Council of Science & Technology (NST), Republic of Korea [KSN2211010] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Fear memory is crucial for avoiding harm, but excessive consolidation can lead to post-traumatic stress disorder and anxiety-related disorders. Dysregulation of specific brain regions and neural circuits, such as the hippocampus, amygdala, and medial prefrontal cortex, has been observed in patients with these disorders. These regions are important for learning, memory, and integration, and play a significant role in neural plasticity and structural remodeling in psychiatric disorders.
Fear memory helps animals and humans avoid harm from certain stimuli and coordinate adaptive behavior. However, excessive consolidation of fear memory, caused by the dysfunction of cellular mechanisms and neural circuits in the brain, is responsible for post-traumatic stress disorder and anxiety-related disorders. Dysregulation of specific brain regions and neural circuits, particularly the hippocampus, amygdala, and medial prefrontal cortex, have been demonstrated in patients with these disorders. These regions are involved in learning, memory, consolidation, and extinction. These are also the brain regions where new neurons are generated and are crucial for memory formation and integration. Therefore, these three brain regions and neural circuits have contributed greatly to studies on neural plasticity and structural remodeling in patients with psychiatric disorders. In this review, we provide an understanding of fear memory and its underlying cellular mechanisms and describe how neural circuits are involved in fear memory. Additionally, we discuss therapeutic interventions for these disorders based on their proneurogenic efficacy and the neural circuits involved in fear memory.

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