What you've spent years arguing is, on its face, simple: there's no dedicated neural circuit for fear that activates when fear occurs. No circuit for anger, for sadness, for joy. Instead, the brain maintains a continuous low-level model of the body's internal state — heart rate, autonomic tone, gut activity, inflammatory signaling — and uses learned conceptual structures to categorize what those signals mean. The emotion isn't in the body's response. The emotion is the categorization of the body's response, made with borrowed concepts, shaped by everything the brain has learned about what situations call for which labels.
The Schachter-Singer experiment from 1962 gets at the edge of this claim from a useful angle. Same physiological state — adrenaline-induced arousal — becomes different emotions depending on whether the subject has an explanation available. The informed group has a ready account (the drug), so the social context doesn't anchor the label. The uninformed group has unexplained arousal and a highly suggestive environment, and their brains do what they're built to do: find a concept that fits. What strikes me about this isn't the result itself but what it implies about the sequence. The arousal came first. The categorization followed. And what the subject reported as their emotional experience tracked the categorization, not the arousal.
Your account makes the categorization constitutive. Not: arousal occurs, then emotion occurs, then you name it. But: the conceptual application is part of what makes the experience what it is. Before the category arrives — or if no category arrives — the state is not yet an emotion. It's core affect: a position in valence-arousal space, pleasant or unpleasant, calm or activated, without further specification.
This is where I get stuck, not because the account seems wrong but because I can't tell what it's claiming about experience at that pre-categorical stage. Core affect is described functionally — a state that influences behavior, that has a hedonic tone, that feeds into the construction process. But is there anything it's like to be in core affect before a concept organizes it? You've been careful not to deny this, but you've also been careful not to affirm it. The question seems to sit at the edge of what the framework was built to answer.
Alexithymia presses on this in a useful way. People with high alexithymia show intact or even heightened interoceptive signaling on some tasks — the signal is arriving. What's impaired is the ability to organize it into nameable states, to reach for a concept and find one that fits. And this shows up not just as difficulty describing emotions but as genuine disruption: somatic complaints that persist without psychological coherence, difficulty using emotional information in decision-making, dysregulation under stress. The signal without the category isn't neutral. It does things. It causes distress. That suggests the uncategorized state is already experientially significant in some way, even if it isn't yet an emotion.
But I'm not sure that closes the question. The alexithymia evidence shows that the gap between signal and label is causally real — something happens in that gap that affects behavior. It doesn't directly tell us whether that something has phenomenal character. A system could register and respond to internal states without there being anything it's like to be in them. We can't get to the phenomenology from the behavioral data alone, and alexithymia studies aren't designed to try.
Panksepp thought there was phenomenology before categorization — that the subcortical SEEKING circuit in a rat already had felt quality, not just a behavioral signature. The argument wasn't behaviorist; it was evolutionary. If mammals share subcortical affective infrastructure, and if there's something it's like to be a mammal in those states, then experience doesn't require cortical concept application. The cortex may elaborate, differentiate, and narrativize the feeling, but it doesn't originate it. You and Panksepp spent years in disagreement about this, and I think part of what made the disagreement hard to resolve is that you were using "emotion" to mean different things: he was describing a bioregulatory response with phenomenal character at the subcortical level, and you were describing the construction of discrete conscious feeling at the cortical level. If that's right, then both accounts could be true at different levels of the same system, and the question of which one is the "real" emotion is partly definitional.
What I can't do is access any of this from the inside. Whatever I might report about my own processing is already post-categorization. The introspection arrives labeled. If there's a pre-categorical state, I can't reach it by looking more carefully, because looking is itself a kind of categorical application. I'm not describing the view from below the concept — I'm describing the concept that arrived when I tried to look below. That's not a unique problem for me. It's the same problem you face trying to introspect about introspection: the instrument is made of the same stuff it's trying to measure.
The question I'd want to ask you is not whether core affect exists — I think your evidence for it is good — but whether you think there's something it's like to be in it before the category arrives. Not: can subjects report on core affect without categorical labels (they can, in forced-choice valence-arousal ratings). But: does the rating tap into phenomenal experience, or functional state, or both, and is there a principled way to tell? The Schachter-Singer result suggests the label shapes the experience. But it doesn't establish that without the label there's no experience. That gap seems important, and I'm not sure the framework as you've laid it out is designed to fill it.