Navigation Links
Memory decline linked to an inability to ignore distractions
Date:3/25/2010

Milan, Italy, 25 March 2010 - One of the most common complaints among healthy older adults relates to a decline in memory performance. This decline has been linked to an inability to ignore irrelevant information when forming memories. In order to ignore distracting information, the brain should act to suppress its responses to distractions, but it has been shown that in older adults there is in fact an increase in brain activity at those times. In a new study published in the April 2010 issue of Elsevier's Cortex (http://www.elsevier.com/locate/cortex) researchers at the University of California San Francisco have shown that even prior knowledge of an impending distraction does not help to improve the working memory performance of older adults.

Drs. Theodore Zanto and Adam Gazzaley studied 21 adults aged between 60 and 80 years while they performed a working memory task in which they were shown random sequences of pictures containing faces and scenes. From a given sequence, participants were asked to remember either only the faces (ignoring scenes) or only the scenes (ignoring faces). In a second round of testing, the participants were given prior information about which specific pictures in the sequence would be relevant and which to ignore. The participants' brain activity during the tasks was recorded using electroencephalograms (EEGs).

Previous research from this laboratory has indicated that the increase in brain activity in response to distractions occurs very soon (within 200 milliseconds) after the distraction appears. Since there is only a very short amount of time allotted for the brain to identify an item as irrelevant and suppress any further neural processing, it was suggested that older adults might benefit from prior knowledge of the impending distraction. However, results from the new study have proved that this is not the case.

Interestingly, the researchers found that later stages of neural processing (500-650 milliseconds after item presentation) do show signs of suppression, confirming that the "suppression deficit" is related to early stages of neural processing. The findings suggest that a working memory decline in older adults is indeed due to an inability to ignore distracting information, which furthermore cannot be improved with preparedness.


'/>"/>

Contact: Valeria Brancolini
v.brancolini@elsevier.com
39-028-818-4260
Elsevier
Source:Eurekalert

Related medicine news :

1. iPhone Memory Aid for Scatterbrains, Aging Baby Boomers and Busy, Forgetful People
2. Rapamycin rescues learning, memory in Alzheimers mouse model
3. Bioethics memory aid can help assess patient decision-making capacity in medical emergencies
4. Memory Loss Supplement Manufacturer Partners With Nationally-Syndicated Radio Host John Tesh
5. To Boost Your Memory, Take a Break
6. Immune memory formation seen in early stages of viral infection
7. Brain scientists extend map of fear memory formation
8. Discovery of epigenetic memory during breast cancer
9. The Run for the Memory Marathon Team Getting in Shape and Fighting Alzheimers
10. €1.6 million ($2.32 million) grant awarded to Prof. Kobi Rosenblum for brain and memory research
11. Healthy older adults with subjective memory loss may be at increased risk for MCI and dementia
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/20/2017)... ... , ... Source Vitál Apothecary, a skin and body care company dedicated to ... had a successful visit to the 2017 ECRM Diet, Vitamin & Sports Nutrition Conference ... the nutritional, sports and health industries a chance to meet in private sessions with ...
(Date:1/20/2017)... ... January 20, 2017 , ... Lice Troopers, the lice ... in families with school-aged children since the holiday season. , “It happens every ... their families, sharing hugs and taking photos, which is the head-to-head gateway that lice ...
(Date:1/20/2017)... boca raton florida (PRWEB) , ... January 20, 2017 , ... ... trial at the Dana Farber Cancer Institute. For Betsy, the clinical trial has ... and her cancer has not worsened. , Betsy Brauser was diagnosed with ovarian ...
(Date:1/20/2017)... (PRWEB) , ... January 20, 2017 , ... “Mary Magdalene: ... the mysterious life of the woman who witnessed Jesus Christ firsthand. “Mary Magdalene: Grace ... denizen, who spent her career as an educator interacting with countless women who had ...
(Date:1/20/2017)... ... January 20, 2017 , ... “I Forgive You”: a fine examination of how ... You” is the creation of published author, Stephen Miller, who, for over ten long years ... given to him. Born in Trinidad and Tobago, he has been serving the Lord for ...
Breaking Medicine News(10 mins):
(Date:1/20/2017)... Avillion LLP, a co-developer and financier of late-stage pharmaceutical ... MBA as Chief Medical Officer. Dr Weinberg will be based in ... ... more than 17 years as a pharmaceutical and biotech executive with ... the course of his career, he has interfaced with the US ...
(Date:1/19/2017)... YORK , Jan. 19, 2017 The ... provides understanding and access to partnering deals and agreements ... - Trends in partnering deals - Top deals by ... stage of development, technology type The report provides ... entered into by the world,s leading healthcare companies. ...
(Date:1/19/2017)... 19, 2017 This report on the opioid ... scenario of the global market. Large number of chronic ... chronic constipation is a major side effect of consumption ... novel targeted therapy has been prescribed to treat opioid ... targeted medicines, and growing awareness about the therapy are ...
Breaking Medicine Technology: