 |
|
Brain changes significantly after age 18, says Dartmouth research
February 07, 2006Two Dartmouth researchers are one step closer to defining exactly when human maturity sets in. In a study aimed at identifying how and when a person's brain reaches adulthood, the scientists have learned that, anatomically, significant changes in brain structure continue after age 18.
The study, called "Anatomical Changes in the Emerging Adult Brain," appeared in the Nov. 29, 2005, on-line issue of the journal Human Brain Mapping. It will appear in a forthcoming issue of the journal's print edition.
Abigail Baird, Assistant Professor of Psychological and Brain Sciences and co-author of the study, explains that their finding is fascinating because the study closely tracked a group of freshman students throughout their first year of college. She says that this research contributes to the growing body of literature devoted to the period of human development between adolescence and adulthood.
"During the first year of college, especially at a residential college, students have many new experiences," says Baird. "They are faced with new cognitive, social, and emotional challenges. We thought it was important to document and learn from the changes taking place in their brains."
For the study, Baird and graduate student Craig Bennett looked at the brains of nineteen 18-year-old Dartmouth students who had moved more than 100 miles to attend college. A control group of 17 older students, ranging in age from 25 to 35, were also studied for comparison.
The results indicate that significant changes took place in the brains of these individuals. The changes were localized to regions of the brain known to integrate emotion and cognition. Specifically, these are areas that take information from our current body state and apply it for use in navigating the world.
"The brain of an 18-year-old college freshman is still far from resembling the brain of someone in their mid-twenties," says Bennett. "When do we reach adulthood? It might be much later than we traditionally think."
The study was funded by a grant from the National Institute of Child Health and Development.
Dartmouth College
"During the first year of college, especially at a residential college, students have many new experiences," says Baird. "They are faced with new cognitive, social, and emotional challenges. We thought it was important to document and learn from the changes taking place in their brains."
For the study, Baird and graduate student Craig Bennett looked at the brains of nineteen 18-year-old Dartmouth students who had moved more than 100 miles to attend college. A control group of 17 older students, ranging in age from 25 to 35, were also studied for comparison.
The results indicate that significant changes took place in the brains of these individuals. The changes were localized to regions of the brain known to integrate emotion and cognition. Specifically, these are areas that take information from our current body state and apply it for use in navigating the world.
"The brain of an 18-year-old college freshman is still far from resembling the brain of someone in their mid-twenties," says Bennett. "When do we reach adulthood? It might be much later than we traditionally think."
The study was funded by a grant from the National Institute of Child Health and Development.
Dartmouth College
Science News and Science Current Events Tag Cloud
This tag cloud is a visual representation of term frequencies of random science news topics with common terms grouped together and emphasized by their display size.
Nitrogen Dengue Virus Sturgeon Gastric Bypass Nausea Iron Deficiency Phosphorylation Insulin Resistance Spinal Cord Injury Fish Oil Brachytherapy Growth Hormone Plant Growth Hormone Therapy Mangrove Human Migration Progesterone Aspirin Natural Selection Tinnitus Prozac Mathematics Gecko Cancer Drug DNA damage
See More: Science News Tags
Researchers use light to detect Alzheimer's
A team of researchers in Bedford, Mass. has developed a way of examining brain tissue with near-infrared light to detect signs of Alzheimer's disease.
Research Shows How Visual Stimulation Turns Up Genes to Shape the Brain
Scientists have long known that brains need neural activity to mature and that sensory input is most important during a specific window of time called the "critical period" when the brain is primed for aggressive learning.
Shrinking brains but healthy memory-does brain matter matter?
Brain shrinkage, a common symptom of ageing when people hit their 60's, appears to have no impact on an individual's capacity to think or learn, according to ANU research.
More Brain Change Current Events and Brain Change News Articles
 |
The Brain That Changes Itself: Stories of Personal Triumph from the Frontiers of Brain Science (James H. Silberman Books) by Norman Doidge (Author) An astonishing new science called neuroplasticity is overthrowing the centuries-old notion that the human brain is immutable. In this revolutionary look at the brain, psychiatrist and psychoanalyst Norman Doidge, M.D., provides an introduction to both the brilliant scientists championing neuroplasticity and the people whose lives they’ve transformed. From stroke patients learning to speak again to the remarkable case of a woman born with half a brain that rewired itself to work as a whole, The Brain That Changes Itself will permanently alter the way we look at our brains, human nature, and human potential. |
 |
Train Your Mind, Change Your Brain: How a New Science Reveals Our Extraordinary Potential to Transform Ourselves by Sharon Begley (Author) In this fascinating and far-reaching book, Newsweek science writer Sharon Begley reports on how cutting-edge science and the ancient wisdom of Buddhism have come together to reveal that, contrary to popular belief, we have the power to literally change our brains by changing our minds. Recent pioneering experiments in neuroplasticity–the ability of the brain to change in response to experience–reveal that the brain is capable of altering its structure and function, and even of generating new neurons, a power we retain well into old age. The brain can adapt, heal, renew itself after trauma, compensate for disabilities, rewire itself to overcome dyslexia, and break cycles of depression and OCD. And as scientists are learning from studies performed on Buddhist monks, it is not only the... |
 |
The Brain That Changes Itself by Viking "An astonishing new science called neuroplasticity is overthrowing the centuries-old notion that the human brain is immutable. Psychiatrist and psychoanalyst, Norman Doidge, M.D., traveled the country to meet both the brilliant scientists championing neuroplasticity and the people whose lives they've transformed-people whose mental limitations or brain damage were seen as unalterable. We see a woman born with half a brain that rewired itself to work as a whole, blind people who learn to see, learning disorders cured, IQs raised, aging brains rejuvenated, stroke patients learning to speak, children with cerebral palsy learning to move with more grace, depression and anxiety disorders successfully treated, and lifelong character traits changed. Using these marvelous stories to probe... |
 |
Change Your Brain, Change Your Life: The Breakthrough Program for Conquering Anxiety, Depression, Obsessiveness, Anger, and Impulsiveness by Daniel G. Amen (Author) BRAIN PRESCRIPTIONS THAT REALLY WORK In this breakthrough bestseller, you'll see scientific evidence that your anxiety, depression, anger, obsessiveness, or impulsiveness could be related to how specific structures in your brain work. You're not stuck with the brain you're born with. Here are just a few of neuropsychiatrist Dr. Daniel Amen's surprising--and effective--"brain prescriptions" that can help heal your brain and change your life: To Quell Anxiety and Panic: ¸ Use simple breathing techniques to immediately calm inner turmoil To Fight Depression: ¸ Learn how to kill ANTs (automatic negative thoughts) To Curb Anger: ¸ Follow the Amen anti-anger diet and learn the nutrients that calm rage To Conquer Impulsiveness and Learn to Focus: ¸ ... |
 |
Beyond Anxiety: Change Your Brain, Change Your Life by Coping With Anxiety Naturally With Sound by Dr. Jane Maati Smith C.Hyp. Msc.D. It's been discovered that sound can be used to elicit responses in the brain; the brain becomes "entrained", which means it starts to resonate at the same frequency as the sound. When this happens, it can change the brain wave patterns in your brain temporarily. The binaural beat sound therapy techniques on this beautiful program are an effective and drug free way to calm anxiety. Studies have shown that with continued use, sound therapy techniques can eventually rewire the brain to a more balanced state, with long lasting results. "There's music in all things, if men had ears. Their earth is but an echo of the spheres." Dr. Jane Ma'ati Smith C.Hyp. Msc.D. studied for her Bachelor of Arts degree at |
 |
The Brain That Changes Itself by OPTP An astonishing new science called neuroplasticity is overthrowing the centuries-old notion that the human brain is immutable. Psychiatrist and psychoanalyst, Norman Doidge, M.D., traveled the country to meet both the brilliant scientists championing neuroplasticity and the people whose lives they've transformed - people whose mental limitations or brain damage were seen as unalterable. We see a woman born with half a brain that rewired itself to work as a whole, blind people who learn to see, learning disorders cured, IQs raised and more. Softcover, 408 pages. |
 |
How God Changes Your Brain: Breakthrough Findings from a Leading Neuroscientist by Andrew Newberg M.D. (Author), Mark Robert Waldman (Author) God is great–for your mental, physical, and spiritual health. That’s the finding of this startling, authoritative, and controversial book by the bestselling authors of Born to Believe. Based on new evidence culled from their brain-scan studies on memory patients and meditators, their Web-based survey of people’s religious and spiritual experiences, and their analyses of adult drawings of God, neuroscientist Andrew Newberg, therapist Mark Robert Waldman, and their research team have concluded that active and positive spiritual belief changes the human brain for the better. What’s more, actual faith isn’t always necessary: atheists who meditate on positive imagery can obtain similar neurological benefits. Written in an accessible style–with illustrations highlighting how... |
 |
Change Your Thinking, Change Your Life (DVD) Starring: Ernest Solivan Directed By: Aries International Also With: Aries International (Producer), Aries International (Writer) Change Your Thinking, Change Your LIfe is a remarkable 108 minute DVD about Hemispheric Kinesiology, a muscle testing success technology that helps access, isolate and remove blockages preventing you from successfully accomplishing your goals. This remarkable DVD will explain why you are struggling with the successful completion of your goals and how you can change struggle to success using HK. The Change Your Thinking, Change Your Life DVD will discuss in detail: * The Conscious & Subconscious Mind |
 |
Bring Clarity to Your Thoughts by Change Your Brain |
|
Simpsons Homer's Brain X-Ray Glow in the Dark Mens T-Shirt, XX-Large This cool Simpsons t-shirt features a front print of an "X-Ray" of Homer's head, revealing the true size of his intellect. Standard mens size tee. Shoulder-to-shoulder taped, sleeve and bottom hem are double-needled. 100% cotton. Officially licensed. |
| © 2009 BrightSurf.com |