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Related Concept Videos

Root Loci for Positive-Feedback Systems01:23

Root Loci for Positive-Feedback Systems

The Hartley oscillator is a positive feedback system that sustains oscillations by feeding the output back to the input in phase, thereby reinforcing the signal. Positive feedback systems can be viewed as negative feedback systems with inverted feedback signals. In these systems, the root locus encompasses all points on the s-plane where the angle of the system transfer function equals 360 degrees.
The construction rules for the root locus in positive feedback systems are similar to those in...
Electro-mechanical Systems01:19

Electro-mechanical Systems

Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
Neural Circuits01:25

Neural Circuits

Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Oscillations In An LC Circuit01:30

Oscillations In An LC Circuit

An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
Applications of RC Circuits01:22

Applications of RC Circuits

A relaxation oscillator is one of the applications of RC circuits. A neon lamp relaxation oscillator comprises a capacitor, a resistor, a voltage source, and a lamp. The lamp acts like an open circuit, with infinite resistance until the potential difference across the lamp reaches a specific voltage. At that voltage, the lamp acts like a short circuit with zero resistance, and the capacitor discharges through the lamp, thus producing light. Once the capacitor is fully discharged through the...
Root-Locus Method01:19

Root-Locus Method

A cruise control system in a car is designed to maintain a specified speed automatically by adjusting the gas pedal. The system continuously measures the vehicle's speed and makes fine adjustments to the pedal to achieve this goal. The root locus method is particularly useful for understanding how the cruise control system's behavior changes under varying conditions, such as when the car goes uphill, downhill, or faces strong wind resistance.
This system can be represented by a block diagram,...

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Related Experiment Video

Updated: Jun 14, 2026

Extracellular Wire Tetrode Recording in Brain of Freely Walking Insects
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Published on: April 1, 2014

Rhythmic behaviour and pattern-generating circuits in the locust: key concepts and recent updates.

Amir Ayali1, Angela B Lange

  • 1Department of Zoology, Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel. ayali@post.tau.ac.il

Journal of Insect Physiology
|March 23, 2010
PubMed
Summary

Locusts exhibit rhythmic behaviors controlled by central pattern generator (CPG) networks. Studying these CPGs in locusts offers insights into neural circuits and brain function.

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Last Updated: Jun 14, 2026

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Multi-unit Recording Methods to Characterize Neural Activity in the Locust (Schistocerca Americana) Olfactory Circuits
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Multi-unit Recording Methods to Characterize Neural Activity in the Locust (Schistocerca Americana) Olfactory Circuits

Published on: January 25, 2013

Area of Science:

  • Neuroscience
  • Animal Behavior

Background:

  • Rhythmic activity is crucial for nervous system functions, including sensory integration, processing, and motor control.
  • Invertebrate models, like the locust, provide simplified systems for studying endogenous rhythmic pattern generation.

Purpose of the Study:

  • To provide an updated overview of rhythmic behaviors in locusts and their neural control mechanisms.
  • To highlight the fundamental concepts of multifunctional neuronal circuits, neural center interactions, and neuromodulation of central pattern generators (CPGs).

Main Methods:

  • Review of existing literature on locust neurobiology and behavior.
  • Focus on established knowledge regarding central pattern generator networks in locusts.

Main Results:

  • Locusts display diverse rhythmic behaviors controlled by CPG networks.
  • CPG networks in locusts are multifunctional and subject to neural center interactions and neuromodulation.

Conclusions:

  • The study of locust rhythmic behavior and CPGs offers a robust model for understanding fundamental principles of neural function.
  • Continued research in this area will advance our understanding of the nervous system and brain operations.