Why You're Walking On Eggshells: Cumulative Nervous System Activation And Your PDA Child Or Teen | Ep. 174

Why You're Walking On Eggshells: Cumulative Nervous System Activation And Your PDA Child Or Teen | Ep. 174

August 4, 2026 · 18 min · Season 1 · Episode 174

About this episode

In this episode, Casey discusses the cumulative nervous system activation model for understanding PDA children and why traditional behavioral frameworks may not apply.

Seven years ago I created a huge spreadsheet trying to find the cause of my son's meltdowns. How many hours outside, how many minutes on screens, how many calories eaten, and much much more. But I couldn't find a consistent pattern. Something that triggered him one day might be barely noticed another. The problem was, my logic was wrong. In this episode, an excerpt from our free Understanding PDA Masterclass, I explain why the standard ABC framework of antecedent, behavior, consequence fails for PDA children and introduce the cumulative nervous system activation model: how drops build in the bucket over weeks, months, and years toward a tipping point, and why what you do this week may determine whether your child can brush their teeth three weeks from now. Key Takeaways Why the Spreadsheet Did Not Work | 00:00:00 When my son went into burnout, I tracked everything: screen time, calories, sleep, fresh air, meltdown frequency. I was looking for the antecedent - the thing that happened right before the blowup - that would tell me the cause. What I now know is the reason the spreadsheet could not find the pattern is that the logic of the PDA nervous system is not event-based. It is…

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Host: Casey

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