Hermit crabs choose their shells according to all kinds of factors. They are less likely to give up a better shell when given mild electric shocks. Do they consciously feel the the shock as painful and weigh it against +ve feelings about the shell? (3/11) - ThreadSky

simonabbrown.bsky.social • 2 days ago

Hermit crabs choose their shells according to all kinds of factors. They are less likely to give up a better shell when given mild electric shocks. Do they consciously feel the the shock as painful and weigh it against +ve feelings about the shell? (3/11)

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simonabbrown.bsky.social•2 days ago

Bees tolerate higher levels of heat to feed from a feeder where they have previously received higher levels of sugar. Is this because they consciously feel pain and weigh it up against expected felt pleasure? (4/11)

simonabbrown.bsky.social•2 days ago

We discuss 3 problems for such findings as evidence for sentience. Ultimately, we show that the strength of evidence a particular trade-off provides depends on which mechanism is likely to explain it, and suggest ways to get stronger evidence on this basis...(5/11)

simonabbrown.bsky.social•2 days ago

Problem 1: trade-offs suggest processing of stimuli which goes beyond mere reflex responses, but they have yet to be connected directly to other measures of sentience or the mechanisms implicated by different theories of consciousness... (6/11)

simonabbrown.bsky.social•2 days ago

Problem 2: some trade-offs are carried out by extremely simple mechanisms with no connection to sentience. In tiny nematode worms, simple interactions between just 2-3 neurons responding directly to chemical concentrations can explain certain trade-off behaviours (7/11)

simonabbrown.bsky.social•2 days ago

Problem 3: As I previously pointed out (https://doi.org/10.51291/2377-7478.1749), states like pain can make some trade-offs *harder* rather than explaining them: it's easier to rationally weigh up the risks and benefits of a surgical procedure when you are not acutely experiencing the problem (8/11)

simonabbrown.bsky.social•2 days ago

Yet we do sometimes perform trade-offs by weighing up how good and bad experiences feel to us. So a trade-off *can* be evidence for sentience. Key is distinguishing possible mechanisms, and showing this trade-off is explained by a sentience-involving mechanism (9/11)

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