Worm that can REGROW its own head

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« on: July 11, 2013, 10:50:12 PM »
Worm that can REGROW its own head - and recover its old memories discovered by scientists
 
Scientists have discovered that not only can  the planarian worm regrow its head if its cut off, the regenerated brain  contains the same memories that were stored in the decapitated one.
Researchers from Tufts University in Boston  tested the memory of the planarian worms by measuring how long it took them to  reach food in a lab environment.
The small yellow worms had been trained to  ignore the bright lights in the lab so they could find their meals without being  distracted and the scientists found that even after decapitation worms  remembered this training.

For the experiment, a team of biologists from  the university trained the 1cm worms to find food hidden in the middle of a  petri dish.

The food was lit up by a bright beam of  light

 
Planarian worms have two eye-spots that can  detect the intensity of light.

These spots act as photoreceptors and are  used to move away from bright light sources.
This means that the worms had to be trained  to get over this fear of the light to get the food.

Once they had learnt this skill, the worms  were decapitated.

Two weeks later - when most of the worm's  heads had grown back - the team put the worms back into the petri dish. 

Using video-tracking technology, the  scientists discovered that the worms which had been trained found the brightly  lit food quicker than their peers.

And, although they didn't find the food on  the first attempt, it only took  one training session for the worms to recover  their skills and ignore  the lights.

This was faster than the decapitated worms  that hadn't been trained before losing their heads.
However, the researchers don't know how or  why this happens.
The findings suggest that the worm's memories  may be stored somewhere else in the body.

A second idea suggested by the researchers is  that the worms' old brain had changed their nervous systems to adjust to the  light, and these changes to the system remained when the new brain was  grown.
Researchers said in the study that more work  needs to be done to discover exactly how the worm is able to retain old  memories, but the findings can be used as a starting point for work into how  memories in humans and other animals could be restored.

The findings appear in the Journal of Experimental Biology


Read more: http://www.dailymail.co.uk/sciencetech/article-2360286/Meet-small-yellow-worm-REGROW-head--old-memories.html#ixzz2YmBTQZTD
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Offline DeathsDoor

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« Reply #1 on: July 12, 2013, 01:45:28 PM »
Wonder if a willy can do that too :excited:
Im not gonna try it thou... just saying...
I tried to commit suicide one time...

I won't be trying that again I nearly fucking died.

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« Reply #2 on: July 12, 2013, 07:13:17 PM »
Wonder if a willy can do that too :excited:
Im not gonna try it thou... just saying...
:lol: