Somatic marker hypothesis
How bodily and emotional signals were proposed to bias decisions, what the Iowa Gambling Task did and did not establish, and why the hypothesis remains influential without becoming a law of intuition
Research-led explanations of human capacity, learning and technological change. Start with the foundations, then follow the evidence and related ideas as the Library grows.
How bodily and emotional signals were proposed to bias decisions, what the Iowa Gambling Task did and did not establish, and why the hypothesis remains influential without becoming a law of intuition
What the nervous system learns from organs, vessels and internal chemistry, how visceral information differs from a conscious feeling, and why bodily signals require interpretation rather than mythology
How fullness, distension and gastric rhythms become perceived bodily experience, why gut feeling is not a scientific synonym for intuition, and how gastric interoception is measured
How breathing becomes a felt internal signal through mechanical, chemical, motor and affective pathways, and why breath awareness is not one simple capacity
What it means to detect or track cardiac sensations, why the heartbeat counting task became controversial, and what cardiac performance can actually tell us
How sensory fibers of the vagus carry visceral information toward the brain, what they encode, and why the vagus should not be confused with HRV or interoception as a whole
Why the insula is central to bodily-state processing, why it is not an isolated interoception center, and how neural evidence should be interpreted
How the feeling of causing an action is built from prediction, selection, feedback and inference, and why felt control is not the same as actual control
How the nervous system builds the ordinary feeling that this body is mine, and what laboratory illusions do and do not prove
How cognition is shaped by a body that senses, acts and occupies a world, without turning embodiment into a slogan or a mystical claim