planarians

We propose planarians as key emerging model species for mechanistic investigations of the encoding of specific memories in biological tissues.

We further show that trained, decapitated planarians exhibit evidence of memory retrieval in a savings paradigm after regenerating a new head.

Also there were claims starting in the 50s where planarians were taught a maze or to respond to certain stimuli and then fed to other planarians and that the trait would sometimes transfer as well.

I remember in junior high, we kept a pack of much smaller and cuter planarians [1] for a science class.

He's changed wild-type planarians to grow the heads of other species.

Tldr: planarians, which are flatworms that can regenerate an entire organism, have a specific stem cell that a single cell can regenerate an entire organism.

I remeber to have read a few years ago an article about how planarians inherited to their descendants the traumatic experience of steping on an electrified metal plate, and each coming generation of planarians would learn faster to avoid such a plate.

This post was in response to one describing decapitated worms growing new heads with their old memories intact, as well as old studies where planarians were trained to navigate a simple maze, then fed to other planarians who were then also able to navigate the maze.

>Also there were claims starting in the 50s where planarians were taught a maze or to respond to certain stimuli and then fed to other planarians and that the trait would sometimes transfer as well So superpowers were transferred when ate?

To establish a system for the investigation of the dynamics of memory in a regenerating brain, we developed a computerized training and testing paradigm that avoided the many issues that confounded previous, manual attempts to train planarians.

The first brains (Planarians) were sort of like jellyfish "brains".

Some things you might learn / amazing facts: - Children 7-11 can regrow fingertips - Planarians (a kind of flatworm) are immortal - If you teach a planarian to find "home", chop off its head and let it regrow its brain, it will still remember where home is Note also that this was presented at NeurIPS so the talk also includes some discussion of non-neural information systems this kind of thing could inspire.

What really excites modern biologists – and what the article completely fails to discuss (even to the point of claiming "this rule seems to govern all life") – are the numerous and dramatic exceptions to the rule: naked role rats, tardigrades, certain cnidarians ("immortal" jellyfish & hydra) and planarians, various lichens...

Planarians (flatworms) have many immortal species as well.