שימוש חדש ומפתיע לשיטה בת 140 שנה בחקר המוח

חוקרים מהאוניברסיטה העברית השתמשו לראשונה בשיטה שקיימת שנים רבות כדי לחשוף את דפוסי הקישוריות במוח ברמה התאית, וקבעו כי ליישום השיטה יש פוטנציאל רב בהבנת מצבים פתולוגיים במוח

המוח האנושי רוחש פעילות – כ-86 מיליארד תאי העצב (נוירונים) המרכיבים אותו שולחים זה לזה אותות חשמליים ללא הרף. האותות העצביים הללו נשלחים לאורך מערכת של סיבים המכונה “החומר הלבן”, והם הבסיס לכל תפקודי המוח. מיפוי הסיבים המקשרים בין אזורי המוח השונים הוא אתגר מתמשך במדעי המוח. השיטות הקיימות כיום למיפוי החומר הלבן מוגבלות למחקר בבעלי חיים, או דורשות ציוד מתקדם לאיסוף הנתונים ולעיבודם.

לאחרונה, פותחה גישה חדשה למיפוי סיבי העצב המוח על ידי פרופ’ אביב מצר וד”ר רועי שור ממרכז אדמונד ולילי ספרא למדעי המוח (ELSC) באוניברסיטה העברית בירושלים, שפורסמה בכתב העת Science. צוות החוקרים השתמש בטכניקה נפוצה שקיימת כמעט 140 שנה, אך מעולם לא שימשה לחקר הקישוריות במוח.

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לפני יותר מעשור התגלתה במוחם של מכרסמים מערכת “GPS מוחי”. הגילוי הסעיר את עולם המדע וזיכה את חוקריו בפרס נובל בשנת

Hebrew University Researchers Develop COVID-19 Test that is Significantly Faster and Cheaper

A team of 15 researchers and students from the Hebrew University and Hadassah Medical Center have developed a faster and

Dr. Inbal Goshen to provide mentoring for students from multiple schools around Jerusalem

In preparation for the high school matriculation exams: 140 Hebrew University graduate students are volunteering to tutor high school students

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