Hi Mike D,
I'm actually working on the first draft of a modern-day sci-fi novel right now where the storyform has Logic as the MC and OS Symptoms. (sorry didn't reply earlier; I hadn't figured out the storyform when you first posted this question)
Anyway, one thing I'm finding is that the Logic Symptom shows up in a couple main ways:
The characters thinking "what the hell?? this doesn't make sense!" in some shape or form, and focusing on that as a problem. Situations, explanations, requests or commands from others that aren't logical, though the word "logic" doesn't come into it very often. The characters tend to respond with emotion -- anger, fear, feeling helpless, shutting down emotionally, whatever.
An example is when some crazy s**t goes down and Devin (MC) tries to call the police. Becca (IC), who is part of a secret organization that knows about the evil aliens, knocks his phone away and says the police can't help, they have to call her uncle instead, but won't explain why. From Devin's point of view, her rationale doesn't make sense, and he gets upset. But from Becca's point of view, calling the police is stupid (flawed logic), and she yells at him for trying. (This is mostly OS throughline.)
The characters seeing a step-by-step rationale, phenomenon or process as too rigid and linear, and again responding with emotion. For example, the cold logic of a cancer diagnosis and treatment plan brings on an emotional response.
I try not to think of it that much when I'm drafting, but notice it when I come up for air.
I don't know if this will help much because Logic as Response might work a lot differently than Symptom. But I thought it might be worthwhile to see how wide-open the Dramatica term can be -- not always Spock and Kirk arguing about Logic!