Oamenii de știință au examinat creierele a 11 femei şi 7 bărbaţi, decedaţi după vârsta de 55 de ani. Subiecţii nu suferisere de afcţiuni neurologice şi nici nu avut meserii care să necesite abilităţi olfactive excepţionale, cum ar fi cea de degustător de cafea sau bucătar profesionist.
Cercetătorii au calculat numărul de celule din bulbii olfactivi ai acestor persoane și au ajuns la concluzia că femeilie au în medie cu 43% mai multe celule decât bărbaţii în această structură cerebrală.
„În general, creierele mai mari cu un număr mai mare de neuroni sunt asociate cu o mai mare complexitate funcţională. Astfel, este logic să ne gândim că numărul mai mare de neuroni în bulbii olfactivi ai femeilor le oferă acestora o sensibilitate olfactivă mai mare“, a explicat profesorul Lent.
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