Publication

Inhibition Patterns the Whisking Rhythm

Carl Petersen, Varun Sreenivasan
2016
Journal Articles

Abstract

In this issue of Neuron, Deschenes et al. (2016) propose that rhythmic inhibition of whisker motor neurons is a key pattern generator underlying exploratory whisking. The inhibitory premotor neurons located in the brain-stem reticular formation are synchronized by breathing-related oscillators.

Official source

https://infoscience.epfl.ch/entities/publication/ec261f04-52ca-4adc-acf9-f58d4ee42018

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Carl Petersen, Varun Sreenivasan
2016
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/ec261f04-52ca-4adc-acf9-f58d4ee42018

About this result

Related concepts (11)

Central pattern generator

Central pattern generators (CPGs) are self-organizing biological neural circuits that produce rhythmic outputs in the absence of rhythmic input. They are the source of the tightly-coupled patterns of neural activity that drive rhythmic and stereotyped motor behaviors like walking, swimming, breathing, or chewing. The ability to function without input from higher brain areas still requires modulatory inputs, and their outputs are not fixed. Flexibility in response to sensory input is a fundamental quality of CPG-driven behavior.

Reticular formation

The reticular formation is a set of interconnected nuclei that are located throughout the brainstem. It is not anatomically well defined, because it includes neurons located in different parts of the brain. The neurons of the reticular formation make up a complex set of networks in the core of the brainstem that extend from the upper part of the midbrain to the lower part of the medulla oblongata. The reticular formation includes ascending pathways to the cortex in the ascending reticular activating system (ARAS) and descending pathways to the spinal cord via the reticulospinal tracts.

Brainstem

The brainstem (or brain stem) is the stalk-like part of the brain that interconnects the cerebrum and diencephalon with the spinal cord. In the human brain the brainstem is composed of the midbrain, the pons, and the medulla oblongata. The midbrain is continuous with the thalamus of the diencephalon through the tentorial notch. The brainstem is very small, making up around only 2.6 percent of the brain's total weight. It has the critical roles of regulating cardiac, and respiratory function, helping to control heart rate and breathing rate.

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