Psychology - vision Part 2

Audio Transcript Auto-generated

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  Good morning, everyone.

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  And welcome back.

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  This is part two of Vision, Chapter four, Section two.

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  So today we're going to talk about color, vision and

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  color blindness.

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  So the color wheel, the color wheel is made up

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  of the colors of the spectrum bent into a circle.

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  Now, complementary colors air the colors across from each other

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  on the color wheel.

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  Color vision refers to the light.

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  It does not refer to the pigment, so we have

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  to focus.

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  Color vision is the light, not the pigment.

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  When complementary colors of light mixed, they form gray so

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  cones and color vision in humans.

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  Some cones are sensitive to blue, some degree in, some

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  to read.

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  When more than one kind of Kanis stimulated, we perceive

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  other colors.

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  Now. Human color vision differs from that of animals.

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  Fish have no cones and see no color at all.

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  Dogs have two types.

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  See fewer colors than humans and birds have four or

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  more and see a wide variety of colors.

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  So it depends on the cones and the color vision.

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  Now, the after images and after images, the visual impression

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  that remains after the original image is removed.

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  The after image is the complimentary color of the color

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  of the original image, So the after image of black

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  is white.

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  The after image of white is black, so it's the

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  image that keeps an impression.

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  It stays after the original is removed, most after images

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  last a few seconds up to a minute.

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  Now they occur when the cons of the I become

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  tired after staring intensely at a single color.

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  So when we look at a color for a very,

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  very long time and really intense and then we kind

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  of like, look away, we still see that image there,

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  Um, of the original one that was removed.

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  The size of an after image depends on the distance

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  from which it is viewed.

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  Okay, and the time that it took you to stay

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  staring at something.

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  Now this is the color wheel.

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  Okay, So, as we said, the colors that air in

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  front of it are the complementary.

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  Gray is the middle of the wheel because when complementary

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  colors of light mix they form gray, now identify cause

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  and effect what happens after you look intensely at a

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  single color.

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  We have the after image that appears, and it will

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  be the complimentary color and not the color that was

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  focused on now.

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  Color blindness, Normal color vision.

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  What a person can see.

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  Colors of the visible, visible spectrums.

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  Now colorblindness is when people do not have normal color

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  vision due to a malfunction in the cone, so malfunction

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  happened. Something is not working properly in the cone, so

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  they do not have normal color vision.

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  Partial colorblindness is common.

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  Total is rare Now.

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  Most people who are color blind have red green colorblindness.

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  Color blindness is almost always inherited.

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  In most of the cases.

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  Males are more likely to inherit color blindness, and there

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  is no cure.

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  There's no actual cure for color blindness, but it does

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  not cause any great impairment.

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  So what difficulties might a person with red green colorblindness

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  encounter when cooking?

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  Let's say red meat, unable to detect the shades of

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  red rah, rare and medium rare meat.

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  Okay, so that was what that's what happens when a

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  person with red color blindness encounters cooking red meat.

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  They they only see the shades.

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  So are there unable to detect the shades of red,

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  raw, rare and medium rare meat.

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  So everybody make sure to go to your you see

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  page for vision.

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  Part two Thio go through the information tutorials and again,

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  um, answering the question.

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  Challenging question.

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  Further practice.

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  Okay. And make sure you do the self assessment very,

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  very important.

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  If you have any questions, don't hesitate to ask if

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  you have a question.

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  Don't hesitate to ask Thanks for listening and have a

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  lovely day.