Navigation Links
Spring-cleaning the mind?
Date:4/19/2011

This release is available in French.

Montreal April 19, 2011 Lapses in memory occur more frequently with age, yet the reasons for this increasing forgetfulness have not always been clear. According to new research from Concordia University, older individuals have reduced learning and memory because their minds tend to be cluttered with irrelevant information when performing tasks. Published in The Quarterly Journal of Experimental Psychology, these findings offer new insights into why ageing is associated with a decline in memory and may lead to practical solutions.

"The first step of our study was to test the working memory of a younger and older population and compare the results," says Mervin Blair, first author and a PhD student in Concordia's Department of Psychology and a member at the Centre for Research in Human Development. "In our study, working memory refers to the ability of both retaining and processing information."

Some 60 participants took part in the study: half were an average of 23 years old, while the other half was about 67 years old. Each participant was asked to perform a working memory task, which included recalling and processing different pieces of information.

"Overall, we showed that our older participants had reduced working memory compared to our younger participants," says Blair. "Younger adults were better than the older adults at recalling and processing information."

"Our study was novel because we looked at how the ability to recall and process information at the same time changes as people get older," adds Karen Li, senior author and a professor in Concordia's Department of Psychology and a member of the Centre for Research in Human Development.

Older people don't purge irrelevant info

The next step was to determine if there was a timeframe when the ability to delete irrelevant information, known as inhibition deletion, changed. This was measured using a sequential memory task . Images were displayed in a random order and participants were required to respond to each image in a pre-learned manner. Once again, the youngsters outperformed their older counterparts. "The older adults had poor inhibition, repeatedly responding to previously relevant images," says Blair.

Analyses were conducted to determine the relationship between the ability to clear irrelevant information and working memory ability. "Poor inhibition predicted a decline in the recall component of working memory and it also predicted decline in the processing component of working memory," says Blair. "Basically, older adults are less able to keep irrelevant information out of their consciousness, which then impacts on other mental abilities."

For those who are having trouble remembering, Blair suggests that focusing and reducing mental clutter may help. "Reduce clutter, if you don't, you may not get anything done."

Keeping a mind clutter-free can be more difficult as people age, especially during periods of stress when people focus on stressors, yet Blair says relaxation exercises can help de-clutter the brain. What's more, the brain continues to function optimally into old age when it is mentally stimulated by learning a new language, playing an instrument, completing crossword puzzles, keeping an active social life and exercising.


'/>"/>

Contact: Sylvain-Jacques Desjardins
s-j.desjardins@concordia.ca
514-848-2424 x5068
Concordia University
Source:Eurekalert

Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2017)... ... May 23, 2017 , ... ... provider in the modern ART laboratory, to provide hands-on training utilizing cutting-edge equipment ... , NextGen LifeLabs, a MedTech Group Purchasing vendor , will provide specialized ...
(Date:5/23/2017)... ... May 23, 2017 , ... Orbita’s Nathan Treloar will discuss the ... in San Francisco. Titled Connected Health and IoT: Technology Innovators and Disruption , ... by Parks Associates, a market research and consulting firm specializing in emerging consumer technology ...
(Date:5/23/2017)... ... May 23, 2017 , ... Therachat , a smart guided ... an infographic on the current state of anxiety in support of National Mental Health ... conducted in April 2017 and benchmarked general anxiety levels as well as identified the ...
(Date:5/22/2017)... Mt. Kisco, NY (PRWEB) , ... May 22, 2017 , ... ... are urged to receive relaxing sedation dentistry in Mt. Kisco, NY from Advanced ... can be administered for a variety of treatments. One or more sedation methods may ...
(Date:5/22/2017)... ... 22, 2017 , ... An inventor from Columbia, S.C., wants to offer people ... was damaged in a firework accident, so she couldn’t grip a pen properly," he ... He then designed and created a prototype for the HELPEN HAND, a special pen ...
Breaking Medicine News(10 mins):
(Date:5/10/2017)... , May 10, 2017 Radiology has ... unfortunately its costs have also spiraled to the number ... sent to radiology than ever before as the most ... For a patient with lower back pain an MRI ... anatomical reason for pain, resulting in entirely different treatment ...
(Date:5/9/2017)... Zimmer Biomet Holdings, Inc. (NYSE and SIX: ... it has earned a spot on Forbes, ... was ranked among 500 U.S. employers as well as ... and Services. The annual Forbes ... survey of over 30,000 employees across 25 industries. The ...
(Date:5/9/2017)... 9, 2017  Oramed Pharmaceuticals Inc. (NASDAQ: ... pharmaceutical company focused on the development of oral ... Intellectual Property Office has granted Oramed a patent ... Exenatide". The patent covers Oramed,s invention of an ... is an incretin hormone that stimulates the secretion ...
Breaking Medicine Technology: