תמיד עלתה השאלה מתי מגיע האדם לשיא, ומתי יכולותיו מתחילות לדעוך. איינשטיין, למשל, הגיע לשיא בשנות…

צוות אפוק | 23 במאי 2022 | חדשות | 1 דק׳

האם "המוח" מתרחב ומתכווץ עם הגיל? ובאיזה גיל אנו מתחילים לדעוך?

תמיד עלתה השאלה מתי מגיע האדם לשיא, ומתי יכולותיו מתחילות לדעוך. איינשטיין, למשל, הגיע לשיא בשנות ה-30 לחייו עם פיתוח תורת היחסות הכללית, אך המשיך במחקריו עד שנות ה-50 לחייו.

כעת, שני חוקרים מאוניברסיטת קיימברידג' ופנסילבניה החליטו להרים את הכפפה ובחנו מה קורה למוחנו בגילים שונים של התפתחות.

לשם כך הם אספו תצלומי MRI של כ-100 אלף איש בגילים שונים, שהראו כי החומר האפור במוח – המייצג את כמות הנוירונים, את גודלם ואת צפיפותם בו – מתרחב ומגיע לשיא בגיל 6 באזור קליפת המוח, ובגיל 14 באזור מרכז המוח. החומר הלבן, לעומת זאת, המייצג את הקשרים בין הנוירונים, מגיע לשיא הנפח שלו בסביבות גיל 28.

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שרה וויין-ויליאמס — לשעבר מנהלת מדיניות ציבורית גלובלית בפייסבוק במהלך עדותה בקונגרס, 9 באפריל 2025

עדות בקונגרס: בכירה לשעבר מאשימה את Meta בשיתוף פעולה עם הצנזורה הסינית

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צוות מגזין אפוק

הירשמו לניוזלטר שלנו וקבלו תוכן חדש למייל מדי חודש

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