NEUROSCIENTISTS FIGURE OUT HOW TO WIPE INDIVIDUAL MEMORIES FROM THE BRAIN . . .

 . .  . of a snail

Researchers at Columbia University Medical Center and Montreal’s McGill University researchers have figured out how to selectively wipe some memories belonging to a certain type of marine snail, while leaving others intact.

They believe the research could make it possible to one day develop drugs that can “delete” certain traumatic memories without negatively impacting memories of other past events.

“To carry out their targeted memory erasure, the researchers blocked certain molecules associated with an enzyme called Protein Kinase M (PKM), which is a crucial part of retaining long-term memories.”

“While it’s so far only been demonstrated on snails, they believe the work represents a valuable insight into the way that memories are laid down, and that its findings could be extrapolated to humans as well. That’s in part due to the fact that the PKM-protecting protein KIBRA is expressed in humans, and that mutations of this gene have been shown to result in intellectual disability.”

“What makes the results reported in the paper promising is that the molecules examined are expressed in mouse and man, and have been found to participate in long-term memory and long-term synaptic plasticity,”  . . . Elderly people with Alzheimer’s and old-age forms of dementia, the expression of KIBRA is compromised.”

Read the entire article here: MINDWIPE NEUROSCIENCE

DID YOU KNOW?

  • The life expectancy of snails in the wild is about 3 to 7 years, but in captivity, they can live up to 10-15 years or even more.
  • The biological features of snails are fascinating. For example, most are hermaphrodites, which means that a single snail has male and female reproductive organs at the same time.
  • Their quantity and diversity are vast. There are anything between 85,000 and 150,000 mollusks of which 80-85 percent are gastropods. Therefore, the world is home to more than 60,000 species of them.
  • Land snails range greatly in size. While some of them are only a few inches long and often weigh only a few ounces, there are land snails that reach almost 12 inches, like the Giant African Land Snail, a species endemic to Africa.
  • The largest land snail recorded was 12 inches long and weighed near 2 pounds.
  • Garden snails (helix apersa) a top speed of 50 yards per hour, this is about 1.3 cm.
  • Land Snails aren’t able to hear at all, but they have eyes and olfactory organs. They use their sense of smell to help them find food being their most important sensory organ.

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