Neuronal Function Impairment
Neuronal Function Impairment - Related Videos
08:34
Thinking Too Much Impairs Decision-Making
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2023
Source: Peter Mende-Siedlecki & Jay Van Bavel—New York University When we are considering a tough choice between two or more attractive options, we often end up actively weighing the pros and cons of each alternative. By reflecting on their advantages and disadvantages, we attempt to fit a complex, subjective decision into an orderly set of criteria. However, research in psychology suggests that this sort of introspective approach might not always yield the most optimal outcomes.1 In other...
02:39
Evaluating Motor Impairment in C. elegans Models Using the Radial Locomotion Assay
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2025
This video demonstrates the use of a radial locomotion assay to evaluate motor dysfunction in C. elegans expressing either wild-type or ALS-mutant human TDP-43 protein. Worms with varying levels of wild-type or mutant TDP-43 expression are allowed to crawl, and their movement is measured by the radial distance traveled from the central point on the assay plate. The assay distinguishes between mild, moderate, and severe motor impairments based on the distance traveled by the different C. elegans...
08:44
Dynamic Clamp Methods to Investigate Impaired Neuronal Excitability Associated with Autism
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2025
Dynamic clamp electrophysiology can establish causal links between neuronal firing deficits and ion channel dysfunction. We describe dynamic clamp methods and protocols in mouse cerebellar Purkinje neurons, noting useful resources and technical considerations. In a representative study, we add modeled sodium conductance to Tsc1-/- Purkinje neurons to rescue repetitive firing.
10:26
Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection
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Cited by 8 •
2017
This procedure describes how to rapidly initiate, extend and connect neurites organized in microfluidic chambers using poly-D-lysine-coated beads fixed to micropipettes that guide neurite elongation.
07:03
Initiating Rapid Neurite Extension and Formation Functional Neuronal Connections
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2025
This video demonstrates a technique for the rapid initiation and extension of a neuron and creation of new connections with a target neuron using a microfluidic device and micromanipulation. This could be used for therapies that aim to reconnect neuronal circuits after trauma or in neurodegenerative diseases.
FAQs
Ion gradients establish the membrane potential that allows neurons to respond to and communicate electrical signals. If this foundation is disrupted, the neuron may have difficulty regulating its electrical state, which can change how signals begin or are maintained. Examining these gradients helps researchers connect cellular-level dysfunction with altered nervous-system communication.
Action potentials carry information along the axon, so impairment can affect the timing and strength of signals reaching other parts of the nervous system. Changes in these traveling signals may weaken communication or make it less precisely coordinated. Their effects can therefore extend beyond one neuron and influence broader patterns of neural activity.
Synapses translate an arriving neuronal signal into chemical communication by releasing neurotransmitters that activate neighboring cells. Disruption at this stage can alter whether, when, or how strongly a receiving neuron responds. Because synaptic activity contributes to connectivity, studying it helps explain how cellular dysfunction can disturb communication across neural circuits.
The consequences depend on which aspects of signaling are affected and where the dysfunction occurs within the nervous system. Altered signal timing, strength, or connectivity may influence sensation, movement, cognition, or behavior. These outcomes provide functional context for interpreting cellular changes and linking them to nervous-system performance.
Researchers examine changes in neuronal signaling to clarify how cellular dysfunction contributes to neurological disease. Relating altered ion-dependent electrical activity, axonal signaling, or synaptic communication to functional consequences can connect mechanisms with disease-related effects. This context helps organize investigations around how neuronal changes disrupt nervous-system communication.
Characterizing impaired neuronal signaling can support the evaluation of diagnostic approaches by identifying changes relevant to nervous-system function. The same evidence may help researchers assess therapeutic targets aimed at correcting dysfunction and neuroprotective strategies intended to limit its consequences. Thus, cellular findings can inform both detection and intervention research.