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Predictive coding
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<p>In <a href="/facts/Neuroscience/o5RV8Cas">neuroscience</a>, predictive coding (also known as predictive processing) is a theory of <a href="/facts/Brain/EKla9NkJ">brain</a> function which postulates that the brain is constantly generating and updating a "<a href="/facts/Mental_model/ErV8WY6h">mental model</a>" of the environment. According to the theory, such a mental model is used to predict input signals from the <a href="/facts/Sense/n9kYQ3rf">senses</a> that are then compared with the actual input signals from those senses. Predictive coding is member of a wider set of theories that follow the <a href="/facts/Bayesian_approaches_to_brain_function/WktdpKV8">Bayesian brain hypothesis</a>. </p>