Predictive Processing
Perception as prediction and error correction
Well-supported but incomplete
Strong framework; debates on implementation details continue.
Definition
Predictive processing holds that brains constantly generate models of the world and update them by minimizing prediction error. Perception is constructive, not passive copying.
Why it matters
It explains hallucination, illusion, trauma triggers, and why reality feels stable yet is model-dependent.
Strongest arguments
- Unifies perception, action, and learning under one principle.
- Accounts for clinical and perceptual phenomena elegantly.
Strongest criticisms
- May not alone explain raw feel of consciousness.
- Competing architectures still being tested.
Misconception Map
Common reasoning traps when exploring this question.
The brain literally creates all of reality
Constructivism is overstated into solipsism.
Correction: Models mediate experience; external reality still constrains survival.
Related theories
Bayesian brain · Active inference · Enactivism
Key thinkers
Friston, Clark, Hohwy, Barrett
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