相关实验视频
Updated: Jan 18, 2026

05:47
Animal Models of Depression - Chronic Despair Model CDM
Published on: September 23, 2021
8.0K
在晚年抑郁症中神经调节和认知
Mina Mirjalili1, Daniel M Blumberger1,2,3, Andre R Brunoni4
1Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada.
概括
晚年抑郁症会损害大脑的可塑性,增加痴呆风险. 像ECT和rTMS这样的非手术神经调节显示出增强老年人可塑性和认知功能的前景.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 精神病学是一个精神病学.
背景情况:
- 晚年抑郁症 (LLD) 与认知能力下降和痴呆症风险增加有关.
- 受各种因素影响的皮质突触可塑性受损是LLD的一个关键漏洞.
- 抑郁症中前额叶皮层可塑性障碍与痴呆症的发病有关.
研究的目的:
- 检查前额叶皮质可塑性障碍在LLD相关痴呆风险中的作用.
- 审查可以诱导皮质可塑性的非手术神经调节技术.
- 探索针对LLD的个性化,基于机制的干预措施的未来方向.
主要方法:
- 审查关于LLD,认知衰退,痴呆风险和皮质可塑性的现有文献.
- 对诱导可塑性的非手术神经调节技术的分析:电疗法 (ECT),重复性跨磁刺激 (rTMS),跨电刺激 (tES) 和聚焦超声波 (FUS).
- 讨论临床前模型和个性化治疗策略.
主要成果:
- 前额叶皮质可塑性的破坏是将LLD与痴呆症联系起来的重要因素.
- 非手术神经调节 (ECT,rTMS,tES,FUS) 有可能增强皮质可塑性.
- 这些神经调节可以改善网络连接和前额功能,可能减轻认知能力下降.
结论:
- 非手术神经调节为改善皮质可塑性和晚年抑郁症的认知功能提供了一个有希望的途径.
- 基于临床前研究的个性化,基于机制的干预措施对于解决LLD异质性至关重要.
- 根据个体特征量身定制治疗方法可以改善治疗结果,并降低LLD患者的痴呆风险.
相关概念视频
Cognitive Development During Adulthood
783
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
783
Long-term Depression
3.1K
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.
Calcium Ion Concentration Mechanism
If over...
Calcium Ion Concentration Mechanism
If over...
3.1K
Long-term Depression
33.1K
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.
33.1K
Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
560
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function.
560
Alzheimer's Disease: Treatment
825
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
825
Negative and Cognitive Symptoms of Schizophrenia
470
Negative symptoms of schizophrenia indicate a reduction or absence of typical behaviors and emotional responses found in healthy individuals, while positive symptoms reflect an excess or distortion of normal functioning.
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
470

