默认模式网络功能和功能障碍的生物物理机制

相关实验视频

Updated: Feb 28, 2026

Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network
11:02

Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network

Published on: December 28, 2010

13.5K

Trang-Anh E Nghiem, Vinod Menon

    bioRxiv : the preprint server for biology
    |February 27, 2026
    PubMed
    概括

    大脑模拟揭示了胰岛是如何抑制默认模式网络 (DMN) 的,以及刺激-抑制平衡的破坏是如何导致大脑疾病中的DMN功能障碍的. 这项工作将细胞机制与大规模网络动态联系起来.

    更多相关视频

    Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy12:09

    Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

    Published on: August 5, 2014

    18.6K
    Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity10:43

    Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity

    Published on: July 1, 2014

    15.9K

    相关概念视频

    Long-term Depression01:03

    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.
    Calcium Ion Concentration Mechanism
    If over...
    3.5K
    Long-term Depression01:05

    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.
    33.5K
    Attention-Deficit/Hyperactivity Disorder01:30

    Attention-Deficit/Hyperactivity Disorder

    Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
    Diagnostic Criteria and Symptoms
    To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
    1.1K
    Neuroplasticity01:01

    Neuroplasticity

    Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
    2.1K
    High-Level and Low-Level Awareness01:19

    High-Level and Low-Level Awareness

    Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
    815
    Disorders of the Nervous Tissue01:28

    Disorders of the Nervous Tissue

    Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
    Homeostatic Imbalances:
    Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
    Parkinson's disease arises from the...
    2.8K