Making Sense of Our Senses
summary
Perception combines limited sensory input with prior assumptions, so a flipped image flips perceived depth; the insular cortex holds a high-resolution map of bodily state. Lab results show milkshake label reduced ghrelin (identical drinks, different labels), placebo/nocebo change hormones and immunity, and resilience tracks interoceptive accuracy. Methods pair ECG+EEG with heartbeat-locked tones to bias belief versus signal, then fit computational psychiatry reverse-engineers body-brain signals via dynamical models to locate whether dysfunctions arise in body, brain, or beliefs.
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