Wireless Neural Amplifier

A wireless neural amplifier is a compact device that strengthens electrical signals recorded from the nervous system and transmits them without tethering the subject to recording equipment. It typically receives low-amplitude signals from implanted electrodes, amplifies and filters them to improve signal quality, and sends the processed data through a wireless link for external acquisition. In behavioral neuroscience, this approach enables neural activity to be monitored while animals move freely and interact with their environment, reducing constraints imposed by cables. Wireless recordings can help relate neural dynamics to locomotion, social interaction, learning, and other natural behaviors.

Wireless Neural Amplifier - Related Videos

Research

JoVE Journal - Medicine

A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device

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Cited by 1 •

2016

Recently, we developed a small wireless device for perspiration monitoring. In this article, we present detailed protocols on how to use the device for perspiration monitoring with an example of the sympathetic activity test.

Implanting a Wireless Bidirectional Microelectrode System in a Rat Brain

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2025

The video demonstrates a procedure for implanting a wireless bidirectional multichannel electrode unit into a rat brain to record and stimulate multichannel neural networks.

Education

JoVE Core - Electrical Engineering

MOSFET Amplifiers

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2024

The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...

BJT Amplifiers

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2024

Bipolar Junction Transistors (BJTs) are pivotal components in amplifier circuits, functioning as voltage-controlled current sources in their active region. This characteristic allows them to efficiently control the collector current through variations in the base-emitter voltage. Essentially, BJTs amplify power due to their ability to take a weak input signal and output a much stronger signal. In BJT amplifier configurations, particularly in common-emitter setups, the transistor's role extends...

Operational Amplifiers

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2026

The operational amplifier, often referred to as an op-amp, is a multifaceted building block of a circuit. This electronic component functions like a voltage-controlled voltage source and can also be used to create a voltage- or current-controlled current source. The design of an operational amplifier enables it to execute mathematical operations when external components like resistors and capacitors are linked to its terminals. An op-amp has the capacity to sum signals, amplify a signal,...

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