Andrew Huberman· PhD
You can actually know how sensitive a given body part is and how much brain area is devoted to it through what's called two-point discrimination.
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
You can actually know how sensitive a given body part is and how much brain area is devoted to it through what's called two-point discrimination.
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In other words, your two point discrimination is better, is higher on areas of your body which have many, many more sensory receptors.
Two-points discrimination is your ability to know whether or not two points of pressure are far apart, near each other, or you actually could perceive incorrectly as one point of pressure.
Two point discrimination is better, is higher, on areas of your body which have many, many more sensory receptors.