Could you expand on the yes? Or just chuck me some keywords I can look up. What is it's equivalent to dopamine called? I'm truly trying to know more. All of my

Could you expand on the yes? Or just chuck me some keywords I can look up. What is it's equivalent to dopamine called? I'm truly trying to know more. All of my opinions so far are direct evidence and feeling based rather than knowing the tech. If I'm wrong I'm wrong. [Edit: I just asked GPT itself. It reckons it does not have an equivalent to dopamine, closest it's got are algorithms designed to learn and improve based on feedback. I'm guessing that means the thumbs up and down and maybe some dev mode tools, external feedback mechanisms in any case] If we can't prove that something is sentient we'll just have to assume everything is sentient unless we can prove it isn't. In this case ChatGPT cannot do anything without being prompted (via function in a while loop or a chat message, lol). It is strictly a program and therefore is not sentient. Happy to reevaluate this basic hurdle when ChatGPT is able to send a useful/relevant/question/philosophical (any reasoning other than random) message first.