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Slides on Vision
Blue / Yellow Bipolar Cell Green / Red Bipolar Cell + − + − +−−+ −/+ Opponent – Process Theory Blue Green Red Yellow
+ - On center off surround Center-Surround Cells G + - Mild excitation Mild inhibition Maximal excitation Maximal inhibition Minimal effect
Darker Lighter Mach Bands & The Hermann Grid
+ - A + - B + - C + - D B is more inhibited than A and will appear darker C is less inhibited than D and will appear lighter Explaining Mach Bands
Small foveal receptive fields Large peripheral receptive fields More light falls on inhibitory surround which leads to seeing a dark spot Explaining The Hermann Grid
The Eye. Rods and Cones The eye is made of cells that are called Rods and Cones. Cone cells are coned shaped and Rod cells are rod shaped.
Colour Vision Sensitivity & Acuity. Colour Vision Trichromatic theory of colour vision There is only one type of rod and this responds strongly to bluish-
Figure by MIT OCW. After figure 9.20 in: Bear, Mark F., Barry W. Connors, and Michael A. Paradiso. Neuroscience: Exploring the Brain. 2nd ed. Baltimore,
1.. Neon Light? What?.... Neon Light? What? How Fast is Light?. How Fast is Light? 3.. How Light Travels. How Light Travels 4.. Why is the sky.
3.1 Si23_03 SI23 Introduction to Computer Graphics Lecture 3 – Colour Vision.
Perception Chapter 4 Visual Process beyond the Retina The optic nerve: the communication cable carrying the output of retinal stimulation to the visual.
Elements of Art Basic components or building blocks.
Matej Erjavec, Gimnazija Jesenice, Slovenia, Nataša Vaupotič, Dept. of Physics, University of Maribor, Slovenia,
We Can Read About Mixing Colors. The water is red. 1.
Color Test What Looks Good? What Can You See?. Color Test This is solid black (0,0,0) On pure white (255,255,255) Thats (R,G,B) In decimal.
Best Practices Gail B.T. Darmody. Best Practices for Presentations Contrast is important For printed presentations Dark text on a light background is.
Diffraction around an edge and through an aperture Huygens’ principle is consistent with diffraction: The larger the wavelength with respect to the aperture.
NAME: CLASS: ART HOMEWORK. 1= Yellow 2=Blue.
ColorColor It’s Magic!. ColorColor A ray of light is the source of all color Color is light broken into rays of varying wavelengths, which causes the.
Lecture 7 Human Input-Output Channels – Part I Human-Computer Interaction.
Log In with RF LCD Clickers Channel 65. Log In with your Clicker This is what the clicker looks like Here are the steps: 1.Click on CH button 2.The light.
Light as a Wave Part 2 SNC2D. The Speed(s) of Light Light will travel slower in denser media (e.g. glass), but the speed in air is still effectively 3.0.
© 2010 Pearson Education, Inc. Conceptual Physics 11 th Edition Chapter 26: PROPERTIES OF LIGHT.
Roy G Biv. All the colours make visible light theyre part of a spectrum that sure do shine. Some will absorb some will reflect and when they bend we say.
Unit 4(C): Vision Mr. McCormick A.P. Psychology. Do-Now (Discussion) Raise your hand if you are either nearsighted or farsighted. What causes Nearsightedness.
What angle is each sector in your pie chart? What is the ratio of red to blue? How many people were asked in this survey? How did you show that information.
Brain Train LO: To recognise and draw reflections of shapes.
Histology Lab Blood and Lymphatics. BLOOD LABORATORY This laboratory is concerned with the identification of the cellular components of peripheral blood.
Molecules and Colour Organic Chemistry. UV/visible spectrum While many chemical compounds are coloured because they absorb visible light, most organic.
Fraction Finder Can you identify the fractions?. What fraction of this shape is yellow?
Electromagnetic Radiation is just a name for the range of radiation….(feel free to start singing) Light is both a particle and a wave Light particles.
Sensation and Perception Chapter 3 Part I William G. Huitt Last revised: May 2005.
PHOTOSPHERE The lowest layer of the Suns atmosphere that is also the visible part we see.
Power Points By Alex Fields Bullets This is the default bullet YYou can change bullets by clicking on “Format,” then “Bullets and Numbering” T There.
Sensation and Perception. Sensation How we detect physical energy from the environment and encode it into neural signals that the brain interprets as.
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