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Neural Signal Amplification

Meaning

Neural Signal Amplification describes the physiological process by which a weak or sub-threshold electrical or chemical signal in a neural circuit is functionally strengthened to elicit a robust, supra-threshold response in downstream neurons. This amplification is essential for efficient information processing, ensuring that critical signals overcome background noise and are effectively propagated through complex brain networks. It is a fundamental mechanism underlying synaptic plasticity, memory formation, and the selective filtering of sensory information. In a clinical context, insufficient amplification can manifest as cognitive sluggishness or impaired sensory perception.