Pretectal neurons control hunting behaviour
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http://hdl.handle.net/2183/24203Coleccións
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Pretectal neurons control hunting behaviourData
2019-10-08Cita bibliográfica
Antinucci P, Folgueira M, Bianco IH. 2019. Pretectal neurons control hunting behaviour. eLife 8. doi:10.7554/elife.48114
Resumo
[Abstract] For many species, hunting is an innate behaviour that is crucial for survival, yet the circuits that control predatory action sequences are poorly understood. We used larval zebrafish to identify a population of pretectal neurons that control hunting. By combining calcium imaging with a virtual hunting assay, we identified a discrete pretectal region that is selectively active when animals initiate hunting. Targeted genetic labelling allowed us to examine the function and morphology of individual cells and identify two classes of pretectal neuron that project to ipsilateral optic tectum or the contralateral tegmentum. Optogenetic stimulation of single neurons of either class was able to induce sustained hunting sequences, in the absence of prey. Furthermore, laser ablation of these neurons impaired prey-catching and prevented induction of hunting by optogenetic stimulation of the anterior-ventral tectum. We propose that this specific population of pretectal neurons functions as a command system to induce predatory behaviour.
Palabras chave
Prey capture
Larval zebrafish
Visualization
Performance
Movements
Circuits
Nucleus
Larval zebrafish
Visualization
Performance
Movements
Circuits
Nucleus
Versión do editor
Dereitos
Atribución 3.0 España
ISSN
2050-084X