Tonic Immobility
Version 1.0.0 · Updated 2026-07-28
CORE DEFINITION
Tonic immobility is a neural reflex in certain animals under extreme threat: the body becomes rigid, breathing slows, and there is no response to stimuli. It is not a deliberate act of 'playing dead' but an automatic protective program. Predators typically avoid corpses, so rigidity reduces the probability of being preyed upon. The human counterpart is the freeze response, which is more ancient than fight or flight.
SCAFFOLDING EFFECT
Reduce cognitive load
Tonic immobility is a survival mechanism that can be understood as an automatic protective response. In human contexts, it manifests as the freeze response, which can be leveraged in stressful situations by recognizing it as a natural reaction and using grounding techniques to recover.
Anchor fast decisions
Tonic immobility is a neural reflex in certain animals under extreme threat: the body becomes rigid, breathing slows, and there is no response to stimuli. It is not a deliberate act of 'playing dead' but an automatic protective program. Predators typically avoid corpses, so rigidity reduces the probability of being preyed upon. The human counterpart is the freeze response, which is more ancient than fight or flight.
MINIMUM ACTION
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Tonic_Immobilityverified
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