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Entry in category 4 Video loop; Copyright CC-BY-NC-ND: Alexandre Dumoulin
Over 17 hours, we witness the growth of chicken sensory neuron axons through the lens of the actin cytoskeleton, evolving from individual growth cones to a dense network. Using time-lapse recording with a confocal spinning disk microscope, my video reveals the dynamic interplay of neuronal protrusions every 10 minutes. This footage contributes to understanding sensory neuron axonal growth, a key aspect of nervous system development. Sensory neurons connect the periphery of our body to the central nervous system and play key roles in allowing us to feel temperature, pain, and sense body spatial position. I particularly like this video because it shows how the development of neurons is dynamic and very efficient, as seen by the distance covered by these neuronal projections in a short time period.
17th Biennale of Sydney
Roxy Paine had made a series of large structures based on the forms of trees with their roots exposed that have been handmade out of industrial stainless steel pipe. These works are generically called Dendroids. Neuron 2010 continues this idea, focusing even more on dandrites and synapses, the means by which information, knowledge and experience are electronically transmitted through a body........[excerpts from information board]
Neuron 2010, MCA, Circular Quay, Sydney, Australia
Students from Fresno State and Universidad Panamericana (that are part of the From Cows to Neurons Student/Faculty Abroad Program) learn about dairy management topics from Fresno State animal science faculty Dr. Kyle Thompson, photo by Geoff Thurner, June 13, 2022, Copyright 2022.
Neurons are stimulated in various ways. There are some specialized neurons that convert the physical energy of our environment into a neural signal. These neurons are called receptors. The receptors are the ones found in the retina and are responsible for converting light energy to an electrochemical neural signal for vision.
We have noted elsewhere that when light (a photon) is absorbed by photopigments in the outersegment of our receptors it causes the photopigment to change its shape; a process called isomerization. When this isomerization occurs, an electrophysiological process is initiated that results in signals being sent through our retina and up into the brain. The end result is that we say that "we saw something."