What did Hubel and Wiesel discover?
Hubel & Wiesel Come to Harvard Their breakthrough discoveries about the visual system and visual processing earned them the Nobel Prize for Physiology or Medicine in 1981. Hubel and Wiesel recorded electrical activity from individual neurons in the brains of cats.
What important discovery did Hubel and Wiesel make when mapping the receptive fields of cells in the retina of cats?
First, he found that single nerve cells respond specifically either to superficial touch stimuli or to deep pressure stimuli, almost never to both. Second, he found that cells responding to one submodality were located together and were segregated from cells responding to other submodalities.
Who is David Hubel and Torsten?
David Hunter Hubel FRS (February 27, 1926 – September 22, 2013) was a Canadian American neurophysiologist noted for his studies of the structure and function of the visual cortex. He was co-recipient with Torsten Wiesel of the 1981 Nobel Prize in Physiology or Medicine (shared with Roger W.
What is Hubel and Wiesel theory?
Hubel and Wiesel hypothesized that there was a time period during which the visual nerve cells develop and that if the retina did not receive any visual information at that time, the cells of the visual cortex redistribute their response in favor of the working eye.
What is David Hubel known for?
David H. Hubel/Known for
David Hunter Hubel studied the development of the visual system and how the brain processes visual information in the US during the twentieth century. He performed multiple experiments with kittens in which he sewed kitten’s eyes shut for varying periods of time and monitored their vision after reopening them.
What did the work of David Hubel and Torsten Wiesel contribute to our understanding of feature detectors?
They proposed an organisational hierarchy within which individual cells were tuned to respond to features such as the angle of visual objects. Individual cells that shared the same tuning for features were thought to be interconnected and arranged in a regular manner.
What did Hubel and Wiesel do for Science?
Hubel and Wiesel were pioneers of the visual system, exploring the physiology behind visual perception in animals, thereby teaching us much about how our own minds work. This is critical for today’s computing technology.
When did David Hubel and Torsten Wiesel come to Harvard?
David Hubel and Torsten Wiesel came to Harvard from Johns Hopkins University with Steven Kuffler in the early 1960s to establish the Department of Neurobiology at Harvard Medical School. Their breakthrough discoveries about the visual system and visual processing earned them the Nobel Prize for Physiology or Medicine in 1981.
What did Hubel and Wiesel do with cats?
Hubel and Wiesel recorded electrical activity from individual neurons in the brains of cats. They used a slide projector to show specific patterns to the cats and noted that specific patterns stimulated activity in specific parts of the brain.
When did David Hubel get the Nobel Prize?
Hubel and Wiesel worked together for over twenty years and received the 1981 Nobel Prize for Physiology or Medicine for their research on the critical period for mammalian visual system development.