About Careers MedBlog Contact us
Medindia LOGIN REGISTER
Advertisement

What Factors Help a Snail to Remember?

by Rathi Manohar on July 2, 2010 at 2:36 PM
Font : A-A+

What Factors Help a Snail to Remember?

The environmental stress conditions that help pond snails to remember and those which make them forget have been identified by Canadian scientists.

The find could help scientists understand how memory works in humans.

Advertisement

When the snails (Lymnaea stagnalis) were overcrowded or exposed to water with low calcium, which they need to grow their shells, their ability to form LTM (long term memory) was greatly reduced.

However, predatory scents reverse these effects, and even overpower the effect of crowding and low-calcium.

"Being able to remember which foods made them sick and which foods were alright will increase their probability of finding suitable food in the future," explained Dr Sarah Dalesman.
Advertisement

In the current study, the scientists 'trained' encouraged the snails to come up to the surface to breathe by artificially reducing the oxygen in the water.

When the snail opened its pneumostome at the surface, it was given a gentle poke with a wooden stick, causing it to close again.

After a repetition of 2 hours, the snail seemed to remember and reduced the number of times it came up for air a day later, showing long term memory.

They have large neurons, which allow them to pinpoint exactly where in the brain memory is formed.

The on going study aims to develop an understanding of how stressors interact in Lymnaea stagnalis and to shed light on the effect of stress on memory formation in higher animals, including humans.

Source: ANI
Advertisement
Advertisement
open close
CONSULT ONLINE WITH A DOCTOR

×

What Factors Help a Snail to Remember? Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests