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Long-term Depression

Long-term Depression

Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.

Long-term Depression

Long-term Depression

Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
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Related Experiment Video

Updated: Apr 2, 2026

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness

Published on: December 6, 2024

Retrieval‑augmented large language models for depression screening and suicide risk stratification

Wenbo Xie^1,2, Xulai Song^1,3,4, Zerui Lu⁵

¹The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China.

|April 1, 2026

Summary

No abstract available in PubMed .

Keywords:

Clinical decision support Depression screening Empathic human–AI interaction Large language models Mental health triage Retrieval‑augmented generation Suicide risk stratification

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