Hence, the octopus’ brain is the subject of study from animal neuroscientists — and one of the main ways we’ve learned about octopus brains is through lesioning studies.This is when ...

“If I chop off an octopus’s arm, it acts like sort of an independent entity for a while.” Overall, this spread-out network of neurons and autonomous parts makes the octopus brain “less of a control ...

The octopus couldn’t rely on chemical cues processed by its brain to find the food, as it typically does in the ocean, forcing the arm’s individual “brain,” or neuron bundle, to find the ...

Imaging the brain activity of an octopus was no easy task, either, Gutnick noted. An octopus on the sea floor. Image source: Andrea Izzotti/Adobe.

The octopus brain keeps growing and adding new neurons over the animal's lifespan. These immature neurons, not yet integrated into brain circuits, were a sign of the brain in the process of expanding.

The octopus’ brain sits between its eyes at the front of its mantle, or head, couched between its two optic lobes, large bean-shaped neural organs that help octopuses see the world around them.

“The brain’s real genius might lay in the cells we have neglected for a century,” Kozachkov says. Our heads’ octopus looks to have been dragging the strings all along. Sources: ...

Nature showcases diverse nervous systems beyond a single command center. Several animals, including octopuses, leeches, and starfish, have evolved multiple brain-like organs or distributed nerve ...

During ‘quiet sleep,' the octopus brain emitted the kind of waveforms seen during non-REM sleep in mammals like us, known as sleep spindles, ...

The researchers’ goal is to expand their octopus brain research alongside a growing number of other European scientists. Their plan is to improve the methodologies available to observe octopus tissue.

(There’s a rather gruesome demonstration of the latter fact: “Amputated octopus arms,” Olson says, “will still move around on their own without commands from the brain.”) ...

And it also tells us that an octopus brain—even though octopuses are asocial—they must have a neural circuit that enables them to encode social behavior but that normally, except under these ...