Navigation Links
As time goes by, it gets tougher to 'just remember this'
Date:5/13/2011

p>"Maybe this is also why we tend to reminisce so much more as we get older: because it is easier to recall old memories than make new ones," Yassa speculated.

The study appears in the May 9 Early Online edition of the Proceedings of the National Academy of Sciences and is available at www.pnas.org/content/early/2011/05/05/1101567108.

Yassa and his team used MRI scans to observe the brains of 40 healthy young college students and older adults, ages 60 to 80, while these participants viewed pictures of everyday objects such as pineapples, test tubes and tractors and classified each -- by pressing a button -- as either "indoor" or "outdoor." (The team used three kinds of MRI scans in the study: structural MRI scans, which detect structural abnormalities; functional MRI scans, which document how hard various regions of the brain work during tasks; and diffusion MRIs, which monitor how well different regions of the brain communicate by tracking the movement of water molecules along pathways.)

Some of the pictures were similar but not identical, and others were markedly different. The team used functional MRI to watch the hippocampus when participants saw items that were exactly the same or slightly different to ascertain how this region of the brain classified that item: as familiar or not.

"Pictures had to be very distinct from each other for an older person's hippocampus to correctly classify them as new. The more similar the pictures were, the more the older person's hippocampus struggled to do this. A young person's hippocampus, on the other hand, treated all of these similar pictures as new," Yassa explained.

Later, the participants viewed a series of completely new pictures (all different) and again were asked to classify them as either "indoor" or "outdoor." A few minutes later, the researchers pre
'/>"/>

Contact: Lisa De Nike
Lde@jhu.edu
443-287-9960
Johns Hopkins University
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Anemia tougher to tackle in black children with kidney disease
2. Short-Term Overeating Could Make Long-Term Weight Loss Tougher
3. Common anxiety disorders make it tougher to quit cigarettes
4. Depression With Psychotic-Like Symptoms Seems Tougher to Treat
5. FDA Looking for Tougher Standards for External Defibrillators
6. FDA Looking at Tougher Standards for External Defibrillators
7. FDA Panel Recommends Tougher Standards for External Defibrillators
8. EPA Proposes Tougher Air Pollution Rules for Power Plants
9. Multitasking Just a Bit Tougher for Older People: Study
10. Obese Pregnant Women May Have Tougher Time Fighting Infections
11. Defining the Perfect Brows Just Got Easier
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/17/2014)... Ohio (PRWEB) September 18, 2014 ... management services nationwide, announces today that they have ... Wayne Radiology (FWRadiology) in Fort Wayne, Indiana. ... of billing services encompassing their proprietary suite of ... (EBT). EBT improves radiology billing and data ...
(Date:9/17/2014)... 17, 2014 As kinship care continues ... who cannot live with their parents, emphasis on kinship ... to enhance services and supports for kinship caregivers and ... National Kinship Care Conference is being held this week ... best practice, policy, program and service development for kinship ...
(Date:9/17/2014)... Historically, spaceflight has been reserved for the very ... meet the highest physical and psychological standards to ... the advent of commercial spaceflight, average people can ... has had very little information about what medical ... in the spaceflight environment, as most medical conditions ...
(Date:9/17/2014)... September 17, 2014 People who struggle to ... head to http://www.perwickstrom.com and get the answer by ... to point out, is that a business plan and a ... work together, commented Per Wickstrom. “The way I view it ... a business strategy which is part two.” , According ...
(Date:9/17/2014)... these sound like the ideas of a ... components of an exciting new approach to imaging ... of metastatic prostate cancer, scientists at Virginia Commonwealth ... Medicine and Johns Hopkins Medical Institutions have provided ... could revolutionize doctors, ability to see tumors that ...
Breaking Medicine News(10 mins):Health News:ADVOCATE Wins Radiology Billing Agreements with Fort Wayne Radiology 2Health News:ADVOCATE Wins Radiology Billing Agreements with Fort Wayne Radiology 3Health News:Arizona’s Children Association Kinship Service Providers Invited to Present at the CWLA National Conference 2Health News:Space: The final frontier… open to the public 2Health News:Per Wickstrom’s Latest Blog Explores the Difference Between a Business Plan and a Business Strategy 2Health News:New non-invasive technique could revolutionize the imaging of metastatic cancer 2Health News:New non-invasive technique could revolutionize the imaging of metastatic cancer 3
... Global pharma major Wyeth Tuesday launched its blockbuster ... pneumococcal disease among infants and toddlers//. ,Pneumococcal ... streptococcus pneumoniae, also known as the "pneumococcus" bacteria. ... that is expected to prevent pneumococcal diseases like ...
... of 87 Hepatitis cases have been detected in Moga out ... health department said today//. ,The infected people ... of 13 doctors, Civil Surgeon Dr H P S Sandhu ... 69 cases from a private doctor and the local clinical ...
... claimed 24 lives in Meghalaya's Garo Hills region bordering Assam ... told the assembly today//. ,Replying to a ... death toll in Garo Hills had gone up this year ... high number of deaths and most of the places affected ...
... research has further confirmed the theory that environmental factors ... diabetes //in children and young adults. ,The ... and Leeds Teaching Hospitals NHS Trust, carried out a ... the times and places where the children and young ...
... found for the first time that human embryonic stem ... into mature T-cells//, raising hopes for a gene therapy ... Institute and the Institute for Stem Cell Biology and ... human embryonic stem cells into blood-forming stem cells that ...
... to a recent survey it was found that international nurses would ... in the NHS//. ,The step was mainly taken to ... 11,500 foreign nurses come to Britain from outside the European Union ... followed by the Philippines and Australia. The rule applies to nurses ...
Cached Medicine News:Health News:Environmental Factors Trigger Onset of Diabetes 2Health News:T-cells Developed from Human Embryonic Stem Cells 2
(Date:9/17/2014)... 2014  Aratana Therapeutics, Inc. (NASDAQ: ... licensing, developing and commercializing innovative biopharmaceutical products for ... public offering of 4,500,000 shares of its common stock at ... share. Aratana has granted the underwriters a 30-day ... shares of its common stock. Jefferies ...
(Date:9/17/2014)... Calif. , Sept. 17, 2014 ... announced that it has earned a $4 million ... AKAO ) associated with the initiation of a ... serious multi-drug resistant (MDR), gram-negative bacterial infections.  The ... study to evaluate the efficacy and safety of ...
(Date:9/17/2014)... MILL VALLEY, Calif. , Sept. 17, ... announced a partnership in the fight against sarcoma. ... Sarcoma Alliance Suzanne Renee Leider Memorial Assistance Fund. ... assistance to reimburse sarcoma patients for expenses directly ... sarcoma specialist. Scientific literature reinforces the importance of ...
Breaking Medicine Technology:Aratana Therapeutics, Inc. Announces Pricing of Public Offering 2Isis Pharmaceuticals Earns $4 Million from Achaogen for the Initiation of a Phase 3 Study of Plazomicin 2Isis Pharmaceuticals Earns $4 Million from Achaogen for the Initiation of a Phase 3 Study of Plazomicin 3Champions Oncology Partners with Sarcoma Alliance to Bring Personalized Treatment Options to Sarcoma Patients 2Champions Oncology Partners with Sarcoma Alliance to Bring Personalized Treatment Options to Sarcoma Patients 3
... Medical's line of Personal ... catheters you would choose ... product configurations - standard, ... hydro - are based ...
The latex-free, PVC-free Antibacterial Hydro Personal catheter combines two remarkable innovations into one exclusive catheter that delivers an antibacterial agent while providing the virtually frict...
The Antibacterial Personal Catheter® features a unique silicone composition that provides an antibacterial coated soft outer layer of silicone combined with a firm inner layer....
... Medical's line of Personal ... catheters you would choose ... product configurations - standard, ... hydro - are based ...
Medicine Products: