Biology of the Blues: Prof. Alon Chen studies stress
Prof. Alon Chen of the Department of Neurobiology of the Weizmann Institute of Science explains the mechanism of stress and what happens when the system goes awry.
Of Mice and Humans
Weizmann Institute research into mouse social behavior finds signs of leadership and reveals “autistic” mouse society
Read full story: http://wis-wander.weizmann.ac.il/mice-in-a-big-brother-setup-develop-social-structures#.VA1Xyfm1bYg
The handshake experiment
Nice to Sniff You: A new Weizmann Institute study found that people sniff their hands twice as much after a handshake. Research student Idan Frumin and Prof. Noam Sobel the Neurobiology Department suggest one of the reasons for this ancient custom may provide people with a socially acceptable way of checking out each other’s odors. Click on the link to read the full story: http://bit.ly/1EJak4l
What happens to memories in the brain over time? (Part 2)
A new approach to studying the neural coding of long-term memory: Neuronal activity (green flashes) in memory circuits comprising about 700 neurons in the hippocampus of a freely behaving mouse, recorded with a technique developed by Dr. Yaniv Ziv during his postdoctoral studies at Stanford שיטה חדשה לחקר הקידוד העצבי של זיכרון ארוך-טווח: פעילות תאי העצב (הבזקים ירוקים) במעגלי זיכרון הכוללים כ-700 תאים, בהיפוקמפוס של עכבר הנע בחופשיות. הסרטון צולם באמצעות שיטה שפיתח ד"ר יניב זיו בזמן לימודי הבתר-דוקטורט באוניברסיטת סטנפורד
What happens to memories stored in the brain over time? (Part 1)
A series of images from different depths within the hippocampus of a mouse, obtained by Dr. Yaniv Ziv during his postdoctoral studies at Stanford. Neurons are marked in green, blood vessels are in red.
סדרת הדמיות מעומקים שונים בתוך היפוקמפוס של עכבר, שעשה ד"ר יניב זיו בזמן לימודי הבתר-דוקטורט באוניברסיטת סטנפורד. תאי העצב מסומנים בירוק, כלי הדם באדום
Dr. Nachum Ulanovsky: Using Bats to Light the Way
This 3 minute video tells the story of Weizmann Institute researcher Dr. Nachum Ulanovsky who is using bats to explore the brain's ability to locate in space. The brain areas instrumental in this skill are essential for short-term memory. Produced by the Department of Resource Development.
Fruit Bats Navigate With Internal Maps
To understand how bats locate individual trees night after night, scientists attached tiny GPS devices to the bats in the first-ever, comprehensive, GPS-based field study of mammal navigation. The researchers collected data as the bats took flight each night from a cave near the Israeli city of Beit Shemesh. These bats flew in a straight line at speeds of 40 km an hour and more -- up to 60 kmh -- at elevations of hundreds of meters, to trees that were about 12 to 25 km from their cave. Full Article: http://wis-wander.weizmann.ac.il/fruit-bats-navigate-with-internal-maps
Locally Produced Proteins
How do long nerve extensions get a crucial molecule to an injury site in time? Weizmann Institute findings may help point the way toward better treatments for nerve damage and aid in finding ways to speed up the repair.
What does courage look like in the brain? Weizmann scientists have discovered brain regions and activity patterns that correlate with choosing to overcome fear
A Chemical Signal in Human Tears
Emotional crying is a universal, uniquely human behavior; When we cry, we clearly send all sorts of emotional signals. In a paper published online today in Science Express, scientists at the Weizmann Institute have demonstrated that some of these signals are chemically encoded in the tears themselves. Specifically, they found that merely sniffing a woman's tears -- even when the crying woman is not present -- reduces sexual arousal in men.
Thanks for the Memories
How easy is it to falsify memory? New research at the Weizmann Institute shows that a bit of social pressure may be all that is needed. The study reveals a unique pattern of brain activity when false memories are formed -- one that hints at a surprising connection between our social selves and memory.
Full article: http://wis-wander.weizmann.ac.il/thanks-for-the-memories#.UlpsOFCnruw
Mice in a "Big Brother" Setup Develop Social Structures
Weizmann Institute research into mouse social behavior finds signs of leadership and reveals "autistic" mouse society
Read full article: https://wis-wander.weizmann.ac.il/mice-%E2%80%9Cbig-brother%E2%80%9D-setup-develop-social-structures