Jon Hamilton

Jon Hamilton appears in the following:

Jump In Autism Cases May Not Mean It's More Prevalent

Thursday, March 27, 2014

The government's latest estimate shows that 1 in 68 children in the U.S. has an autism spectrum disorder. That's a remarkable jump from just two years ago, when the figure was 1 in 88, and an even bigger jump from 2007, when it was just 1 in 150.

But ...


Brain Changes Suggest Autism Starts In The Womb

Wednesday, March 26, 2014

The organization of certain brain cells in children with autism seems already different from that of typical children by the sixth or seventh month of fetal development, a study hints.

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Alzheimer's Diagnosis Expanding To Catch Early Warning Signs

Wednesday, March 19, 2014

The approach would recognize changes in behavior and in the brain. Right now there are no treatments that slow down the disease, but identifying high-risk patients early on could help with prevention.


Alzheimer's Blood Test Raises Ethical Questions

Sunday, March 09, 2014

A new blood test for people in their 70s can detect who will develop Alzheimer's disease. A positive result could help people prepare. But since there's no treatment, will people really want to know?


Maybe That BPA In Your Canned Food Isn't So Bad After All

Wednesday, February 26, 2014

There's been lots of debate about whether tiny amounts of the chemical have the potential to cause health problems. A new FDA study supports a previous conclusion that the chemical is safe for people.


Orphans' Lonely Beginnings Reveal How Parents Shape A Child's Brain

Monday, February 24, 2014

Izidor Ruckel lived in a Romanian orphanage where children were neglected. Scientists say that lack of attention can damage a child's brain. But Ruckel thinks his adoptive parents' love saved him.


Stricter Autism Criteria Unlikely To Reduce Services For Kids

Monday, January 27, 2014

The clinical definition for when a child has some form of autism has been tightened. And these narrower criteria for autism spectrum disorder probably will reduce the number of kids who meet the new standard.

But researchers say the changes, which were rolled out last May, are likely to ...


Brain Cells 'Geotag' Memories To Cache What Happened — And Where

Thursday, November 28, 2013

Think back to an important event in your life: a graduation, a birth, a special Thanksgiving dinner. Chances are you're remembering not only what happened, but also where it happened. And now scientists think they know why.

As we form so-called episodic memories, the brain appears to be using special ...


In Pregnancy, What's Worse? Cigarettes Or The Nicotine Patch?

Monday, November 25, 2013

Lots of studies have shown that cigarette smoke isn't good for a fetus. So many pregnant women use nicotine gum or skin patches or inhalers to help them stay away from cigarettes.

A few years ago, Megan Stern became one of those women. "I smoked heavily for the first seven ...


Childhood Maltreatment Can Leave Scars In The Brain

Monday, November 04, 2013

Maltreatment during childhood can lead to long-term changes in brain circuits that process fear, researchers say. This could help explain why children who suffer abuse are much more likely than others to develop problems like anxiety and depression later on.

Brain scans of teenagers revealed weaker connections between the prefrontal ...


Eeek, Snake! Your Brain Has A Special Corner Just For Them

Monday, October 28, 2013

Anthropologist Lynne Isbell was running through a glade in central Kenya in 1992 when something suddenly caused her to freeze in her tracks. "I stopped just in front of a cobra," she says. "It was raised with its hood spread out."

Isbell, who is at the University of California, Davis, ...


Brains Sweep Themselves Clean Of Toxins During Sleep

Thursday, October 17, 2013

While the brain sleeps, it clears out harmful toxins, a process that may reduce the risk of Alzheimer's, researchers say.

During sleep, the flow of cerebrospinal fluid in the brain increases dramatically, washing away harmful waste proteins that build up between brain cells during waking hours, a study of ...


Multitasking After 60: Video Game Boosts Focus, Mental Agility

Wednesday, September 04, 2013

A brain that trains can stay in the fast lane. That's the message of a study showing that playing a brain training video game for a month can rejuvenate the multitasking abilities of people in their 60s, 70s and 80s.

"After training, they improved their multitasking beyond the level ...


A Single Protein May Help Explain Memory Loss In Old Age

Thursday, August 29, 2013

If you're finding it harder to remember where you put the car keys, the culprit could be a brain protein with a name that's easy to forget: RbAp48.

A shortage of this protein appears to impair our ability to remember things as we age, researchers report in the current ...


New Muscle Drugs Could Be The Next Big Thing In Sports Doping

Monday, August 12, 2013

Research intended to help people with muscle-wasting diseases could be about to launch a new era in performance-enhancing drugs.

The research has produced several muscle-building drugs now being tested in people with medical problems, including muscular dystrophy, cancer and kidney disease. The drugs all work by blocking a substance called ...


Harsh In Hard Times? A Gene May Influence Mom's Behavior

Monday, August 05, 2013

A gene that affects the brain's dopamine system appears to have influenced mothers' behavior during a recent economic downturn, researchers say.

At the beginning of the recession that began in 2007, mothers with the "sensitive" version of a gene called DRD2 became more likely to strike or scream at their ...


BPA-Free Plastics Going On Trial In Texas

Monday, July 15, 2013

Scientists and lawyers are scheduled to debate the safety of certain "BPA-free" plastics this week in a U.S. District Court in Austin, Texas.

At issue is whether a line of plastic resins marketed by Eastman Chemical contains chemicals that can act like the hormone estrogen, and perhaps cause health ...


Tips For Surviving A Mega-Disaster

Friday, June 28, 2013

The U.S. is ready for tornadoes, but not tsunamis.

That's the conclusion of a panel of scientists who spoke this week on "mega-disasters" at the American Geophysical Union's science policy meeting in Washington, D.C.

The nation has done a good job preparing for natural disasters like hurricanes and tornadoes, which ...


The Human Voice May Not Spark Pleasure In Children With Autism

Monday, June 17, 2013

The human voice appears to trigger pleasure circuits in the brains of typical kids, but not children with autism, a Stanford University team reports. The finding could explain why many children with autism seem indifferent to spoken words.

The Stanford team used functional MRI to compare the brains of 20 ...