Working-for-Food Behaviors: A Preclinical Study in Prader-Willi Mutant Mice

Glenda Lassi, Silvia Maggi, Edoardo Balzani, Ilaria Cosentini, Celina Garcia-Garcia, Valter Tucci

Research output: Contribution to journalArticle (Academic Journal)


Abnormal feeding behavior is one of the main symptoms of Prader-Willi syndrome (PWS). By studying a PWS mouse mutant line, which carries a paternally inherited deletion of the small nucleolar RNA 116 (Snord116), we observed significant changes in working-for-food behavioral responses at various timescales. In particular, we report that PWS mutant mice show a significant delay compared to wild-type littermate controls in responding to both hour-scale and seconds-to-minutes-scale time intervals. This timing shift in mutant mice is associated with better performance in the working-for-food task, and results in better decision making in these mutant mice. The results of our study reveal a novel aspect of the organization of feeding behavior, and advance the understanding of the interplay between the metabolic functions and cognitive mechanisms of PWS.

Original languageEnglish
Pages (from-to)1129-1138
Number of pages10
Issue number3
Publication statusPublished - Nov 2016


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    Lassi, G., Maggi, S., Balzani, E., Cosentini, I., Garcia-Garcia, C., & Tucci, V. (2016). Working-for-Food Behaviors: A Preclinical Study in Prader-Willi Mutant Mice. Genetics, 204(3), 1129-1138.