ShmoopTube

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Here's your shmoop du jour brought to you by art museums what [Man looking at paintings]

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can we say we Louvre a good Art Museum alright here's today's question Susana

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loves to visit her local museum her favorite painting is a haystack sitting [Susana looking at painting of haystack]

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against a blue sky and it's located next to a window during different times of

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the day the shade of the haystacks seems to change but her brain always processes

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the color as straw the ability of the brain to interpret the same color

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despite changes in lighting is called what and here are your potential answers ....

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well it's interesting as that whole Susana story was the real meat of the [Woman watching TV]

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question is in the last sentence the ability of the brain to interpret the

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same color despite changes in lighting is called what that thing well B

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definitely isn't the one that we want The word linear doesn't

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exactly have anything to do with color and shape actually linear perspective [Parallel lines below linear perspective]

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refers to the depth cue we receive from parallel lines that appear to converge

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think like you know railroad tracks and think quick that trains coming fast

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hey speaking of lines, continuity a

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Gestalt rule of perception most often refers to lines describing the visual

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tendencies to create continuous figures take the lines for railroad tracks if we [Person highlighting railroad tracks]

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were to cross them well typically we'd still see the two lines as separate

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figures we carry the line forward even when they cross but again this is

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totally unrelated to color in the perception of it so a nice try there [Gestalt standing with a cane]

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Gestalt we know it must've been tough to click away from the cat videos on

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YouTube to watch this one because we're super nice we're going to make that

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pain a little easier to bare so look at this kitty cute huh snap, close one eye okay [A cat with one eye closed]

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good now open that eye and close the other eye yeah you saw that little furry guy

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slightly differently that time right well that's what's described as

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binocular disparity and while it may have just made you look a bit goofy in [Man transforms face into goofy]

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front of your computer screen it's also not what we're looking for all right

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say goodbye to fluffy only temporarily, we promise so that leaves us with C and E

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okay so we all know what an optical illusion is it's this and this and this [Examples of optical illusions]

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it's fun to play around with but not our answer but there is a great optical

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illusion that illustrates the correct answer C - brightness constancy take a

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look at this image compare the colors of the checkers mark a and B do they look

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different too yes probably but they're not ooh spooky

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your brain is contextualizing the colors based on the perceived shadow cast from

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the green cylinder which is directly toying with the concept of brightness [Checkers board with a green cyclinder]

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constancy well brightness constancy describes how despite the change of

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light condition we always perceive colors the same way in other words our

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brains adapt and alter our perceptions based on the lighting conditions around

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us taking into account light sources and shadows which is exactly what the

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question describes and now that we finished this question let's resume [Man watching cat videos]

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which should always be our regularly scheduled programming cute little kitty...

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