Feeding State Modulates Behavioral Choice and Processing of Prey Stimuli in the Zebrafish Tectum. Filosa, A., Barker, A., J., Dal Maschio, M., & Baier, H. Neuron, 90(3):596-608, 2016.
abstract   bibtex   
Animals use the sense of vision to scan their environment, respond to threats, and locate food sources. The neural computations underlying the selection of a particular behavior, such as escape or approach, require flexibility to balance potential costs and benefits for survival. For example, avoiding novel visual objects reduces predation risk but negatively affects foraging success. Zebrafish larvae approach small, moving objects ("prey") and avoid large, looming objects ("predators"). We found that this binary classification of objects by size is strongly influenced by feeding state. Hunger shifts behavioral decisions from avoidance to approach and recruits additional prey-responsive neurons in the tectum, the main visual processing center. Both behavior and tectal function are modulated by signals from the hypothalamic-pituitary-interrenal axis and the serotonergic system. Our study has revealed a neuroendocrine mechanism that modulates the perception of food and the willingness to take risks in foraging decisions. Filosa et al. show that hunger enhances the decision by larval zebrafish to approach (versus avoid) moving visual objects and the processing of prey cues in the tectum through signals from the hypothalamic-pituitary-interrenal axis and serotonergic system.
@article{
 title = {Feeding State Modulates Behavioral Choice and Processing of Prey Stimuli in the Zebrafish Tectum},
 type = {article},
 year = {2016},
 identifiers = {[object Object]},
 pages = {596-608},
 volume = {90},
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 last_modified = {2018-05-05T20:54:43.657Z},
 tags = {Decision-making,Zebrafish},
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 abstract = {Animals use the sense of vision to scan their environment, respond to threats, and locate food sources. The neural computations underlying the selection of a particular behavior, such as escape or approach, require flexibility to balance potential costs and benefits for survival. For example, avoiding novel visual objects reduces predation risk but negatively affects foraging success. Zebrafish larvae approach small, moving objects ("prey") and avoid large, looming objects ("predators"). We found that this binary classification of objects by size is strongly influenced by feeding state. Hunger shifts behavioral decisions from avoidance to approach and recruits additional prey-responsive neurons in the tectum, the main visual processing center. Both behavior and tectal function are modulated by signals from the hypothalamic-pituitary-interrenal axis and the serotonergic system. Our study has revealed a neuroendocrine mechanism that modulates the perception of food and the willingness to take risks in foraging decisions. Filosa et al. show that hunger enhances the decision by larval zebrafish to approach (versus avoid) moving visual objects and the processing of prey cues in the tectum through signals from the hypothalamic-pituitary-interrenal axis and serotonergic system.},
 bibtype = {article},
 author = {Filosa, Alessandro and Barker, Alison J. and Dal Maschio, Marco and Baier, Herwig},
 journal = {Neuron},
 number = {3}
}

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