Social modulation of individual preferences in cockroaches

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iScience. Elsevier. 2021, 24(1), 101964. eISSN 2589-0042. Available under: doi: 10.1016/j.isci.2020.101964
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In social species, decision-making is both influenced by, and in turn influences, the social context. This reciprocal feedback introduces coupling across scales, from the neural basis of sensing, to individual and collective decision-making. Here, we adopt an integrative approach investigating decision-making in dynamical social contexts. When choosing shelters, isolated cockroaches prefer vanillin-scented (food-associated) shelters over unscented ones, yet in groups, this preference is inverted. We demonstrate that this inversion can be replicated by replacing the full social context with social odors: presented alone food and social odors are attractive, yet when presented as a mixture they are avoided. Via antennal lobe calcium imaging, we show that neural activity in vanillin-responsive regions reduces as social odor concentration increases. Thus, we suggest that the mixture is evaluated as a distinct olfactory object with opposite valence, providing a mechanism that would naturally result in individuals avoiding what they perceive as recently exploited resources.

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570 Biowissenschaften, Biologie
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Entomology, Behavioral Neuroscience, Sensory Neuroscience
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ISO 690GÜNZEL, Yannick, Jaclyn MCCOLLUM, Marco PAOLI, C. Giovanni GALIZIA, Inga PETELSKI, Einat COUZIN-FUCHS, 2021. Social modulation of individual preferences in cockroaches. In: iScience. Elsevier. 2021, 24(1), 101964. eISSN 2589-0042. Available under: doi: 10.1016/j.isci.2020.101964
BibTex
@article{Gunzel2021-01-22Socia-52549,
  year={2021},
  doi={10.1016/j.isci.2020.101964},
  title={Social modulation of individual preferences in cockroaches},
  number={1},
  volume={24},
  journal={iScience},
  author={Günzel, Yannick and McCollum, Jaclyn and Paoli, Marco and Galizia, C. Giovanni and Petelski, Inga and Couzin-Fuchs, Einat},
  note={Article Number: 101964}
}
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