Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Older adults experience 'destination amnesia'

31.08.2010
...and over-confidence with false beliefs
Toronto, Canada – I'm sure I told you that already!

Older adults are more likely to have destination memory failures – forgetting who they've shared or not shared information with, according to a new study led by Baycrest's Rotman Research Institute.

It's the kind of memory faux pas that can lead to awkward or embarrassing social situations and even miscommunication in the doctor's office. Ironically, after making these memory errors older adults remain highly confident in their false beliefs.

The study appears online, ahead of print publication, in the Online First Section of Psychology and Aging.

"What we've found is that older adults tend to experience more destination amnesia than younger adults," said lead investigator and cognitive scientist Dr. Nigel Gopie, who led the study with internationally-renowned experts in memory and attention, Drs. Fergus Craik and Lynn Hasher.

"Destination amnesia is characterized by falsely believing you've told someone something, such as believing you've told your daughter about needing a ride to an appointment, when you actually had told a neighbour."

Why are older adults more prone to destination memory failures? The ability to focus and pay attention declines with age, so older adults use up most of their attentional resources on the telling of information and don't properly encode the context (ie. who they are speaking to) for later recall.

"Older adults are additionally highly confident, compared to younger adults, that they have never told people particular things when they actually had," added Dr. Gopie. "This over-confidence presumably causes older adults to repeat information to people."

A critical finding in the study is that destination memory is more vulnerable to age-related decline than source memory. Source memory is the ability to recall which person told you certain information.

In the research, 40 students from the University of Toronto (ages 18 - 30) and 40 healthy older adults from the community (ages 60 - 83) were divided into two experimental groups. The first experiment measured destination memory accuracy and confidence: requiring the individual to read out loud 50 interesting facts to 50 celebrities (whose faces appear on a computer screen), one at a time, and then remember which fact they told to which famous person. For example, "a dime has 118 ridges around it" and I told this fact to Oprah Winfrey.

The second experiment measured source memory accuracy and confidence: requiring the individual to remember which famous person told them a particular fact. For example, Tom Cruise told me that "the average person takes 12 minutes to fall asleep".

In the first experiment for destination memory accuracy, older adults' performance was 21% worse than their younger counterparts.

In the second experiment for source memory accuracy, older and younger adults performed about the same (60% for young, 50% for old) in recollecting which famous face told them a particular fact.

The study was funded by the Natural Sciences and Engineering Research Council of Canada, Canadian Institutes of Health Research, U.S. National Institute on Aging, and a Baycrest Jack and Rita Catherall Award.

The study follows an earlier one published last year in Psychological Science by Dr. Gopie (Baycrest's Rotman Research Institute) and Dr. Colin M. MacLeod (University of Waterloo). That one looked at disrupted destination memory in a single age group – university-aged students.

Baycrest

A health-sciences centre affiliated with the University of Toronto, Baycrest's internationally-renowned scientific research and clinical practice is dedicated to transforming the journey of aging.

Kelly Connelly | EurekAlert!
Further information:
http://www.baycrest.org

More articles from Studies and Analyses:

nachricht Smart Data Transformation – Surfing the Big Wave
02.12.2016 | Fraunhofer-Institut für Angewandte Informationstechnik FIT

nachricht Climate change could outpace EPA Lake Champlain protections
18.11.2016 | University of Vermont

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

Im Focus: Fraunhofer ISE Develops Highly Compact, High Frequency DC/DC Converter for Aviation

The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

UTSA study describes new minimally invasive device to treat cancer and other illnesses

02.12.2016 | Medical Engineering

Plasma-zapping process could yield trans fat-free soybean oil product

02.12.2016 | Agricultural and Forestry Science

What do Netflix, Google and planetary systems have in common?

02.12.2016 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>