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175 results for Brain

An Exception to the Rule: An Intact Sense of Smell Without a Crucial Olfactory Brain Structure
An Exception to the Rule: An Intact Sense of Smell Without a Crucial Olfactory Brain Structure

https://weizmann-usa.org/news-media/news-releases/an-exception-to-the-rule-an-intact-sense-of-smell-without-a-crucial-olfactory-brain-structure/

Nov 06, 2019... Computer-enhanced MRI images of the brains of left-handed women identified two that were missing olfactory bulbs
REHOVOT, ISRAEL—November 6, 2019—Is a pair of brain structures called the olfactory bulbs, which are said to encode our sense of smell, necessary? That is, are they essential to the existence of this sense? Weizmann Institute of Science researchers recently showed that some humans can smell just fine, thank you, without said bulbs. Their finding – that around 0.6% of women, and more specifically, up to 4% of left-handed women, have completely intact senses of smell despite having no olfactory bulbs in their brains – calls into question the accepted notion that this structure is absolutely necessary for the act of smelling. The findings of this research, which were published in Neuron, could shake up certain conventional theories that describe the workings of our sense of smell.

TAGS: Women, Brain, Neuroscience, Evolution, Senses

Healing a Battle-Scarred Mind
Healing a Battle-Scarred Mind

https://weizmann-usa.org/news-media/in-the-news/healing-a-battle-scarred-mind/

Apr 20, 2015... Some soldiers are destined to relive the horrors of the battlefield for the rest of their lives. YURI KOZYREV / NOOR IMAGES
Daniel* deployed to Iraq aged 24. He thought he was invincible. His first firefight was intoxicating and Daniel quickly became the sort of squad leader everyone looked up to – unshakeable, the first into the line of fire. The problems began after one of Daniel’s squad took a bullet to the face.

TAGS: Culture, Brain, Immune system, Mental health

Brain Researchers Open Door to Editing Memory
Brain Researchers Open Door to Editing Memory

https://weizmann-usa.org/news-media/in-the-news/brain-researchers-open-door-to-editing-memory/

Apr 06, 2009... Suppose scientists could erase certain memories by tinkering with a single substance in the brain. Could make you forget a chronic fear, a traumatic loss, even a bad habit.
Researchers in Brooklyn have recently accomplished comparable feats, with a single dose of an experimental drug delivered to areas of the brain critical for holding specific types of memory, like emotional associations, spatial knowledge or motor skills.

TAGS: Brain

Weizmann Institute Scientists Discover a Chemical Signal in Human Tears
Weizmann Institute Scientists Discover a Chemical Signal in Human Tears

https://weizmann-usa.org/news-media/news-releases/weizmann-institute-scientists-discover-a-chemical-signal-in-human-tears/

Jan 06, 2011... REHOVOT, ISRAEL—January 6, 2011—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.

TAGS: Brain, Senses

Brain Cleaner: A New Method Developed at the Weizmann Institute Holds Promise for Treating Brain Injuries
Brain Cleaner: A New Method Developed at the Weizmann Institute Holds Promise for Treating Brain Injuries

https://weizmann-usa.org/news-media/news-releases/brain-cleaner-a-new-method-developed-at-the-weizmann-institute-holds-promise-for-treating-brain-injuries/

Jan 17, 2007... REHOVOT, ISRAEL—January 17, 2007—An injury to the brain can be devastating. When brain cells die, whether from head trauma, stroke or disease, a substance called glutamate floods the surrounding areas, overloading the cells in its path and setting off a chain reaction that damages whole swathes of tissue. Glutamate is always present in the brain, where it carries nerve impulses across the gaps between cells. But when this chemical is released by damaged or dying brain cells, the result is a flood that overexcites nearby cells and kills them.

TAGS: Technology, Brain, Neuroscience

Revolutionary Patch Keeps Brain Safe After Cranial Surgery
Revolutionary Patch Keeps Brain Safe After Cranial Surgery

https://weizmann-usa.org/news-media/in-the-news/revolutionary-patch-keeps-brain-safe-after-cranial-surgery/

Jul 16, 2019... Photo of neurosurgery from healthline.com
If you’re ever unfortunate enough to require brain surgery, Israeli startup Nurami Medical has got you covered – literally.
The Haifa-based company has developed a patch made of synthetic, biodegradable nanofibers meant to be affixed to the dura mater – the protective membrane underneath the skull that keeps the brain and spinal cord safe – after cranial neurosurgery.

TAGS: Brain, Neuroscience, Materials

Want to Think Outside of the Box? Try Sniffing a Placebo
Want to Think Outside of the Box? Try Sniffing a Placebo

https://weizmann-usa.org/news-media/in-the-news/want-to-think-outside-of-the-box-try-sniffing-a-placebo/

Oct 27, 2017... Shutterstock
The placebo effect is best known in medicine for making people feel better when they are given sham treatments. Now there is growing interest in using placebos to boost athletic and cognitive abilities.
Previous studies have found that people lift more weight and cycle harder when they take medicines with no active ingredients that are falsely labelled as performance-enhancing substances. Placebo pills have also been shown to improve scores in memory tests.

TAGS: Culture, Brain, Neuroscience

Mini Brains May Wrinkle and Fold Just Like Ours
Mini Brains May Wrinkle and Fold Just Like Ours

https://weizmann-usa.org/news-media/in-the-news/mini-brains-may-wrinkle-and-fold-just-like-ours/

Dec 12, 2017... ANOTHER WRINKLE The outer layer of the human brain has distinctive folds. Work with brains growing in lab dishes is showing how the structures may form. Daniel Heighton/Shutterstock
PHILADELPHIA — Flat brains growing on microscope slides may have revealed a new wrinkle in the story of how the brain folds.
Cells inside the brains contract, while cells on the outside grow and push outward, researchers at the Weizmann Institute of Science in Rehovot, Israel, discovered from working with the lab-grown brains, or organoids. This push and pull results in folds in the organoids similar to those found in full-size brains. Orly Reiner reported the results December 5 at the joint meeting of the American Society for Cell Biology and the European Molecular Biology Organization.

TAGS: Brain, Biology, Stem cells

Receptive to Stress
Receptive to Stress

https://weizmann-usa.org/news-media/news-releases/receptive-to-stress/

May 26, 2016... The CRFR1 receptor is used only in stressful situations
How does stress – which, among other things, causes our bodies to divert resources from non-essential functions – affect the basic exchange of materials that underlies our everyday life? Weizmann Institute of Science researchers investigated this question by looking at a receptor in the brains of mice, and they came up with a surprising answer. The findings, which recently appeared in Cell Metabolism, may in the future aid in developing better drugs for stress-related problems and eating disorders.

TAGS: Brain, Biology, Mental health, Metabolism

Is “Friendly Fire” in the Brain Provoking Alzheimer’s Disease?
Is “Friendly Fire” in the Brain Provoking Alzheimer’s Disease?

https://weizmann-usa.org/news-media/in-the-news/is-friendly-fire-in-the-brain-provoking-alzheimer-s-disease/

Apr 24, 2018... Neuroscientist Michael Heneka knows that radical ideas require convincing data. In 2010, very few colleagues shared his belief that the brain’s immune system has a crucial role in dementia. So in May of that year, when a batch of new results provided the strongest evidence he had yet seen for his theory, he wanted to be excited, but instead felt nervous.
He and his team had eliminated a key inflammation gene from a strain of mouse that usually develops symptoms of Alzheimer’s disease. The modified mice seemed perfectly healthy. They sailed through memory tests and showed barely a sign of the sticky protein plaques that are a hallmark of the disease. Yet Heneka knew that his colleagues would consider the results too good to be true.

TAGS: Brain, Neuroscience, Immune system, Alzheimers

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