Equation 1 · Part 4 · Dunbar's Number: The Limit That Might Not Exist
Symbol V_neocortex
What this part means
eocortex occurs above the fraction bar. The numerator is divided by the entire denominator below it.
Its job in the formula
eocortex occurs above the fraction bar. The numerator is divided by the entire denominator below it.
Full expression→Symbol V_neocortex→Article meaning
The passage around this formula
The prediction itself has a precise origin and it is much narrower than its reputation. Robin Dunbar’s 1992 paper in the Journal of Human Evolution ran a comparative regression across primate genera and found that group size tracked one variable with real predictive power — the ratio of neocortex volume to the volume of the rest of the brain — while the ecological variables he tested alongside it, tied to diet and ranging behavior, did not [ 1 ] . Stated as a model, the claim was this: . Group size as a function of relative neocortex volume, nothing else in the model earning its keep. Dunbar’s interpretation was mechanistic rather than merely statistical: neocortical…
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Sources cited in the surrounding passage
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