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I think there was an experiment with a cat where they actually generated an image from what fell on the cat's retina. The only study I've ever seen on this has
by kirse 18y ago
I think there was an experiment with a cat where they actually generated an image from what fell on the cat's retina.
The only study I've ever seen on this has been based on simply grabbing the image off the reflection of the eye. I can't imagine this actually involved hooking up a cat's visual cortex to some sort of interface, the sheer processing power required for that sort of visual information processing is unfathomable.
If not, link me!
- Tichy 18y agoJust googled this: http://www.arthurmag.com/magpie/?p=395 http://www.arthurmag.com/magpie/?p=395 don't know if it is the same experiment I read about, and no time for more googling ;-)
- joeyo 18y agoThat's the one. They were recording in the lateral geniculate nucleus, however (ie more similar to the representation coming straight off the retina). More here: http://www.stanley.bme.gatech.edu/research_topics_vision.html#Overview http://www.stanley.bme.gatech.edu/research_topics_vision.htm...
- ars 18y agoThey did do that, it was in Scientific American in an article about the eyes. They they did not take it from the visual cortex though, but rather from neurons coming from the retina. The retina has various layers and they took a look at what each layer does.
- eru 18y agoThey put smashed bananas into the cats' brains to record the signals. (It's less ridiculous than it sounds: Bananas contain a certain enzyme that helps to capture the neurons signals. The porridge they put around the sensors in the cats' brains contained many more things besides the bananas. My fiancee was studying that stuff in university.)