Bases genéticas de la afantasía


Me parece que la asombrosa/maravillosa variedad de procesos cognitivos que parecemos experimentar tiene un enorme valor. Si un grupo de humanos primitivos tuviera ese tipo de variedad de cognición, sus perspectivas de supervivencia habrían mejorado enormemente: fuera cual fuera el reto, algunos de ellos tendrían la solución. Me atrevería a especular que la aparición del espectro afantasico a hiperfantasico puede ser la razón por la que el homo sapiens sigue existiendo y el homo neanerthalensis no.

Sería interesante investigar los marcadores genéticos de las variantes del espectro y buscarlos en otras especies.

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As recently as 2020, the only thing known about a genetic basis for aphantasia is that it runs in families more often than would be expected by chance (Zeman et al., 2020). So there probably are genetic markers, they’re just totally unknown so far. Let’s hope someone researches it soon!

on junio 17, 2021

Have you ever read this theory about language evolution, it’s a wonderful read and speaks to the potential impact slight variations in cognitive processes could have. I do tend to think these variations in imagery abilities are evolutionarily fit divergences, there are obvious collective advantages in diversity. And there is definitely scientific interest into this question of genetics, it’s only a matter of time before we have some more conclusive answers. But as Shannon mentioned, the current data does suggest the possibility of a genetic component – aphantasics in that study were shown to be 10x as likely to have a 1st degree relative with aphantasia.

My Father,  Two Brothers,  Both sons, and 3 nephews have Aphantasia.   I can confirm it is genetic.