bike: 25 minutes
run: 3.25 miles
While I biked in the basement, I watched this great video lecture by a neuroscientist from Harvard, Margaret Livingston about vision and art. Very fascinating–and something I’ll have to watch a few more times before I get it all. Near the beginning she says,
So if you take anything at all away from this talk tonight, please try to remember: Vision is information processing; it is not image transmission. Your visual system does not just transmit an image of the world up to your brain, because there’s nobody up there to look at an image. There’s nothing up there except nerve cells and all they do is either fire or not fire. So seeing is whether some neurons are firing and some neurons are not and what information those cells are extracting by the firing patterns from the pattern of light that lands on your retina.
Yes! Vision is not just using your eyes to see an image that gets transmitted to your brain. Vision is a complex series of processes involving light entering your eye through your cornea then landing on the retina, traveling through the optic nerve to the brain where it is processed not merely reproduced.
During my run I continued listening to the audio book, The Guest List. Wow, the men in this book are terrible; I was actually getting angry and sad about what assholes they are. Despite this, finally, three-quarters of the way through I am invested in listening to the entire thing and finding out how it ends. Whenever I make it to this point in a book where I’m finally hooked even though I had thought about giving up on it several times, I feel a sense of accomplishment.
a moment of sound
On the deck again. Listening to a crow and my neighbors’ scare rods spinning in the wind, sounding like the scratching noise that Voldemort’s soul makes in one of his horacruxes in the last movie. For the first 20 seconds or so, Delia joined me. You can hear her collar clanging, then the door open as she goes back inside. Too cold or boring for her, I guess.
Note: Working earlier today on some notes about vision, I think I figured out my new project: peripheral vision. So much to think about literally and metaphorically! I was inspired by a line I came up with:
If central vision represents the trees, peripheral vision is the forest. I will never lose the forest, even as the trees fade further away.