HOME >> BIOLOGY >> NEWS
Old brains can learn new tricks!

A study led by the Rotman Research Institute at Baycrest Centre for Geriatric Care in Toronto has found that older people use different areas of the brain to perform the same 'thinking task' as young.

The study, in conjunction with University of Toronto and Brandeis University in Massachusetts, is published in the Oct. 25 international journal "Current Biology". While other studies have conducted comparisons of young and old brain activity, this is the first to focus on how the interplay of brain regions relates to cognitive functioning and aging.

"The older brain is more resilient than we think," says Dr. Randy McIntosh, Rotman scientist and assistant professor, Department of Psychology, at University of Toronto. "If aging brains can find ways to compensate for cognitive decline, this could have exciting implications for memory rehabilitation."

Ten young adults (ages 20 to 30) and nine older adults (ages 60 to 79) participated in identical visual, short-term memory tests while their brain activity was measured using positron emission tomography (PET). PET measures regional cerebral blood flow and acts as a marker to show which brain areas are 'lighting up' during a memory performance task.

Participants were shown pairs of vertical grid patterns on a computer screen and asked to select which one had the higher spatial frequency. After viewing each pair, they would press one of two keys to indicate the correct grid. Researchers measured their ability to discriminate stimuli over half-second and four-second intervals.

Results show that young and older participants perform the memory task equally well, but the neural systems or pathways supporting performance differed between young and old. While there was some overlap in the brain regions supporting performance (e.g. occipital, temporal and inferior prefrontal cortices), the neural communication among these common regions was much weaker in older individuals.

Older individuals compensated f
'"/>

Contact: Kelly Connelly
kconnelly@baycrest.org
416-785-2432
Baycrest
24-Oct-1999


Page: 1 2

Related biology news :

1. Decreasing toxins in brains of Alzheimers patients keep cognitive deficits at bay
2. Wasps brains enlarge as they perform more demanding jobs
3. Adolescent brains show reduced reward anticipation
4. U. of Colorado professor pioneering tissue engineering from knees to hearts to brains
5. New study suggests brains of autistic children can be trained to recognize faces
6. A tale of mice and men and how brains develop
7. Researchers discover genes that distinguish human, nonhuman primate brains
8. Study links amyloid plaques in Alzheimers brains to genes vital to normal memory
9. Prenatal exposure to nicotine increases risk of apnea in brains of newborn rats
10. Dyslexic children`s brains operate more like those of normal readers following training
11. Researchers record first pheromone images in brains of mice

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/5/2020)... ... , ... Regenative Labs has received approval from the Centers for Medicare & ... first Wharton’s jelly allografts to be assigned a Q code and be approved for ... Wharton’s jelly allograft product to be recognized as a 361 HCT/P by CMS regulated ...
(Date:7/18/2020)... ... July 16, 2020 , ... A study has been published ... Neoasis™ active noise control device to attenuate typical noises in a simulated neonatal ... the alarm sounds from patient monitors, ventilators and other bedside devices that would ...
(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. http://www.altrubio.com ... a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), at European ... J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, open-label Phase ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... FARMS, Mich. (PRWEB) , ... August 12, 2020 ... ... Consulting Group, Inc. (EMMA International), a global leader in FDA compliance consulting ... of the nation’s fastest-growing private companies. The list represents a unique look at ...
(Date:8/3/2020)... (PRWEB) , ... August 03, 2020 , ... ... collection, today announced Jim Corrigan, President and CEO has been named one of ... broad cross-section of industry sectors, PharmaVoice 100 honorees are selected based on how ...
(Date:7/31/2020)... ... July 29, 2020 , ... R3 Stem Cell International is ... $3950. With 50 million stem cells total, patients may choose which extremities they would ... for arthritic joints (BMC Musculoskelet Disord. 2016). At R3 International, umbilical cord tissue is ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... transmitter systems that can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. ... drive one or two switches in a push-pull configuration; yielding fast fall time ...
Breaking Biology Technology:
Cached News: