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The Hidden Senses Your Brain Uses to Make Every Decision (S2E21)


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You were taught you have five senses. You don't. Neuroscience now recognizes at least twelve distinct sensory systems, and the ones Aristotle missed are the ones quietly running your emotional life, your decisions, and your sense of who you are.

In this conversation, Phil Dixon and Cole Bastian take apart the five-sense model and rebuild it with what the research actually shows. You'll learn why "touch" isn't one sense, why your gut feelings are sensory data, and why interoception, the sense of your own internal state, is the foundation of emotional intelligence and good judgment.


Covered in this episode:

  • The history of the five-sense model from Aristotle's De Anima to modern neuroscience
  • Charles Bell and Charles Sherrington on the discovery of proprioception
  • The vestibular system, thermoception, and nociception explained
  • Why interoception is the neurological foundation of emotion, drawing on Lisa Feldman Barrett's constructed emotion theory
  • Antonio Damasio's somatic marker hypothesis and what it means for decision-making
  • C tactile afferents, the receptors tuned specifically to caring touch
  • Wilder Penfield's cortical homunculus and what your brain's body map really looks like
  • Chronoception, magnetoreception, and the edges of human sensing
  • How interoceptive awareness connects to the Personal Threat Profile (PTP)
  • Practical ways to train interoception for better self-regulation and leadership


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00:00 The Sense You Were Never Taught

00:02 Aristotle and the Five-Sense Model

00:03 Charles Bell Discovers Proprioception

00:06 The Vestibular System and Balance

00:08 Thermoception and Temperature Sensing

00:09 Nociception Is Not Just Touch

00:11 Interoception and the Body's Internal State

00:13 Lisa Feldman Barrett on Constructed Emotion

00:14 Connecting Interoception to the PTP

00:15 Chronoception and the Sense of Time

00:17 Magnetoreception and Speculative Senses

00:18 Why Touch Is Not One Sense

00:19 C Tactile Afferents and Caring Touch

00:20 The Cortical Homunculus Body Map

00:22 Damasio's Somatic Marker Hypothesis

00:25 How to Train Interoceptive Awareness

00:26 Closing the BrainWise Field Guide

...more
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My BrainWise CoachBy My BrainWise Coach