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Commentary Type

Invited Commentary


Andrew Crump, Heather Browning, Alex Schnell, Charlotte Burn, and Jonathan Birch, Sentience in decapod crustaceans: A general framework and review of the evidence


Crump et al. (2022) provide a framework for determining the presence of sentience in organisms. Their target article is interesting and thought-provoking, but it does not consider the many unresolved issues related to behavioral analysis – especially when it concerns invertebrates. We feel that no real progress can be made until such fundamental issues as the need for a consistent definition of conditioning phenomena, the lack of a generally accepted behavioral taxonomy, and the use of cognitive terms to explain invertebrate behavior are examined critically.

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Author Biography

Charles I. Abramson, Regents Professor of Psychology and Director of the Laboratory of Comparative Psychology and Behavioral Biology at Oklahoma State University, does research on a wide range of topics including invertebrate learning, agrochemicals, apparatus design, mathematical models, and history. Website

Paco Calvo, Professor of Philosophy of Science and Director of the Minimal Intelligence Laboratory at the University of Murcia (Spain), does research on (the philosophy of) plant neurobiology, ecological psychology and embodied cognitive science. His book, Planta Sapiens, is soon to appear. Website