Featured Research

from universities, journals, and other organizations

Researchers Will Try To Identify Gene Involved In Processing Environmental Cues

Date:
August 2, 2004
Source:
University Of Toronto
Summary:
The environment plays an important role in memory retrieval, says a new University of Toronto study.

The environment plays an important role in memory retrieval, says a new University of Toronto study.

Related Articles


In a study of olfactory learning published in the July 27 issue of Current Biology, U of T's Eric Law, a PhD candidate, and his supervisor, Professor Derek van der Kooy of the Department of Medical Genetics and Microbiology, used C. elegans, a worm whose genome has been completely sequenced, to demonstrate that animals absorb information about their environment and modulate their behaviour accordingly.

The researchers first placed worms on agar plates treated with a salt medium, exposed them to the smell of benzaldehyde and trained them to associate the smell with starvation. If a worm was returned to the salt medium where it had been trained, it showed a distaste for the benzaldehyde odour, but it did not demonstrate this memory in a different salt medium.

Law likened the results to remembering something more easily if you were in the same environment where you had first learned it.

"During training, the worms learn about whether smell predicts starvation, and it becomes apparent that environmental cues can also trigger the memory of odour as a cue for starvation," said Law.

"This is something people intuitively said was important. This is an important bridge between psychology and neurobiology. Affecting anenvironment affects your ability to learn."

The researchers have also identified a mutation that affects the environment's role in memory recall. When you test and train the worms with this mutation in a different environment, they get confused and don't associate the environment with what they've learned.

The next step is to find the specific gene involved in processing environmental cues, says Law. Once it is identified, researchers will be able to search for similar genes in humans in order to shed light on the workings of human memory.

This study was supported by the National Sciences and Engineering Research Council of Canada. U of T post-doctoral fellow William Nuttley also contributed to the research.


Story Source:

The above story is based on materials provided by University Of Toronto. Note: Materials may be edited for content and length.


Cite This Page:

University Of Toronto. "Researchers Will Try To Identify Gene Involved In Processing Environmental Cues." ScienceDaily. ScienceDaily, 2 August 2004. <www.sciencedaily.com/releases/2004/08/040801231025.htm>.
University Of Toronto. (2004, August 2). Researchers Will Try To Identify Gene Involved In Processing Environmental Cues. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2004/08/040801231025.htm
University Of Toronto. "Researchers Will Try To Identify Gene Involved In Processing Environmental Cues." ScienceDaily. www.sciencedaily.com/releases/2004/08/040801231025.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Mind & Brain News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Buzz60 (Dec. 19, 2014) A double-amputee makes history by becoming the first person to wear and operate two prosthetic arms using only his mind. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Prenatal Exposure To Pollution Might Increase Autism Risk

Prenatal Exposure To Pollution Might Increase Autism Risk

Newsy (Dec. 18, 2014) Harvard researchers found children whose mothers were exposed to high pollution levels in the third trimester were twice as likely to develop autism. Video provided by Newsy
Powered by NewsLook.com
Yoga Could Be As Beneficial For The Heart As Walking, Biking

Yoga Could Be As Beneficial For The Heart As Walking, Biking

Newsy (Dec. 17, 2014) Yoga can help your weight, blood pressure, cholesterol and heart just as much as biking and walking does, a new study suggests. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins