Gibbons, Matilda and Sarlak, Sajedeh (2020) Inhibition of pain or response to injury in invertebrates and vertebrates. Animal Sentience 29(34)
Irina Mikhalevich and Russell Powell, Minds without spines: Evolutionarily inclusive animal ethics
In certain situations, insects appear to lack a response to noxious stimuli that would cause pain in humans. For example, from the fact that male mantids continue to mate while being eaten by their partner it does not follow that insects do not feel pain; it could be the result of modulation of nociceptive inputs or behavioural outputs. When we try to infer the underlying mental state of an insect from its behaviour, it is important to consider the behavioural effects of the associated physiological and neurobiological mechanisms.