04/26/2026
You've probably noticed it.
Someone in your life who can't eat lukewarm food. Someone who needs the room quiet before they can talk. Someone who recharges by adding more stimulation, not less.
These aren't personality quirks. They're sensory processing patterns.
Dunn's Model identifies four of them — each one shaped by how the nervous system sets its threshold for input.
The diagram below maps each pattern to three everyday behaviors: food temperature, noise tolerance, and what happens after a social event.
Most friction between people isn't about effort or intention. It's about two different nervous systems trying to share the same environment.
Understanding the pattern is where that changes.
👉 Full breakdown in this week's issue.
The people around you aren't doing it wrong. They're doing it differently. There's a nervous system reason for that.