11/02/2026
🧠 The Hand Model of the Brain: What “Flip the Lid” Really Means
This poster uses your hand to represent the brain and what happens when someone becomes overwhelmed, distressed, or panicked.
Here’s how it works:
✊ Make a fist, this is a regulated brain
• Your palm = the brain stem
(The part that controls breathing, heart rate, and survival)
• Your thumb = the amygdala
(The brain’s alarm system, detects danger, threat, or stress)
• Your fingers folded over your thumb = the prefrontal cortex
(The thinking brain, reasoning, listening, decision-making, impulse control, and communication)
When everything is calm, the fingers stay folded down.
This means the thinking brain and the alarm system are working together.
✋ Now open your hand, this is “flipping the lid”
When stress, fear, sensory overload, or big emotions hit:
• The amygdala (alarm) takes over
• The prefrontal cortex (thinking brain) goes offline
The “lid” flips open, and the person is now in survival mode, not thinking mode.
That’s why in these moments, someone may:
• Stop listening
• Go non-verbal
• Yell, cry, or shut down
• Struggle to make decisions or explain what they feel
This isn’t bad behaviour.
It’s the nervous system protecting itself.
💛 What brings the lid back down?
Not lectures. Not pressure. Not reasoning.
What helps is:
✔ Calm voices
✔ Reduced noise and stimulation
✔ Space and time
✔ Simple choices
✔ Grounding and reassurance
Because when people feel safe, the thinking brain can come back online.
At 4 Reasons Disability Services, we support brains first, behaviours second.
Safety creates regulation. Regulation creates growth. 🦋
NDISSupport MentalHealthEducation 4ReasonsDisabilityServices