Neuronal control of leech behavior

@article{Kristan2005NeuronalCO,
  title={Neuronal control of leech behavior},
  author={William B. Kristan and Ronald L. Calabrese and W. Otto Friesen},
  journal={Progress in Neurobiology},
  year={2005},
  volume={76},
  pages={279-327}
}

A classic model animal in the 21st century: recent lessons from the leech nervous system

Robust behaviors and a simple and accessible nervous system made the leech a favorite among systems neuroscientists, and increasing use of modern techniques helps explain its continued appeal.

Neural circuits controlling behavior and autonomic functions in medicinal leeches

Some of the best understood movements of medicinal leeches and the circuits which underlie them are discussed, focusing on swimming, crawling and heartbeat.

Mechanisms of behavioral choice in the nervous system of the medicinal leech

This work uses the leech as a model system to explore how animals place different priorities on different behaviors due to its simple nervous system, its readily identifiable neurons, and its amenability to reduced preparations, and believes that distributed decision-making networks may be universal in the nervous systems of all complex animals.

Spontaneous Electrical Activity and Behavior in the Leech Hirudo Medicinalis

Large bursts of spikes occurring spontaneously were recorded and caused the leech to move even in the absence of any external sensory stimulation and appear to act as internal triggers controlling the spontaneous leech behavior and determining the duration of stereotypical motor patterns.

Functions of the subesophageal ganglion in the medicinal leech revealed by ablation of neuromeres in embryos

Although the midbody ganglia of the leech CNS display a high degree of local autonomy, the cephalic brain is a source of selective inhibition that modulates behaviour, integrates sensory information from the head with signals from the rest of the body, and plays an important role in organizing at least some complicated whole-body behaviours.

The stomatogastric nervous system of the medicinal leech: its anatomy, physiology and associated aminergic neurons

The presence and characteristics of the stomatogastric nervous system, vital for feeding, are reported here for the first time and provide a new foundation for understanding the regulation and modulation of neural networks involved in feeding.

Dopamine Induces Rhythmic Activity and Enhances Postinhibitory Rebound in a Leech Motor Neuron Involved in Swimming and Crawling Behaviors

Bath application of dopamine to isolated leech ganglia induces rhythmic oscillatory activity in cell DE-3, consistent with crawling, but not swimming behavior, which provides further support for the hypothesis that dopamine promotes crawling behavior in the leech.

Specialized brain regions and sensory inputs that control locomotion in leeches

It is suggested that the supraesophageal ganglion is the primary structure that constrains leech swimming; however, the control of swim duration in the leech is complex, especially in the intact animal.
...

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