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Description:
AP Psychology 3.5 Sensation and Perception. Which of the following explains what Mary sees?
Transcript
- 00:04
And here's your shmoop du jour brought to you by dogs they make
- 00:07
life a little less rough. we know that joke tickled your funny bone [woman playing with a dog]
- 00:11
here's the question..Mary sees the dog as separate from the bone it is chewing
- 00:15
which of the following explains what she sees and here are your potential answers....
- 00:20
Our brains are pretty cool think about it they help us [People at a beach with brains for heads]
Full Transcript
- 00:27
interpret and understand all the visual stimuli in the world quickly and
- 00:30
accurately so instead of being visually overwhelmed all the time we can focus on
- 00:34
the more important things in life like a test prep, see what we did there alright let's [Girl preparing for a test]
- 00:39
get started could Mary's brain be engaging in A) bottom-up processing well
- 00:44
bottom-up processing describes our ability to pick up various features of
- 00:47
stimuli and put them together to make sense of them we see fur, four legs
- 00:51
floppy ears and voila we know that what we're looking at is a sweet little pup [puppy in the street]
- 00:55
but if we happen to have seen a lost werewolf poster in the area recently
- 01:00
well then maybe we'd perceive this innocent and playful dog as a dangerous [puppy transforms into a beast]
- 01:05
beast this would be top-down processing which describes when we take our
- 01:09
knowledge and expectations to help interpret our sensory stimuli neither of
- 01:13
these however have to do with distinguishing the dog from her bone so
- 01:16
we can cross out A) and B) what about D) shape constancy well this concept
- 01:21
refers to our ability to perceive the shape of a given object as constant [shape constancy definition]
- 01:26
despite our view angle changing so if we look at the dog from this angle and then [Woman looking at a dog]
- 01:32
this angle our brain knows that the shape hasn't changed but that our
- 01:36
perspective or angle has, it's a way of contextualizing the object and our
- 01:41
perceptions in order to make sense of our surroundings similarly if we were to [Dog sitting down]
- 01:45
view the dog in this light and then this light our mind understands that the
- 01:50
object itself isn't becoming more or less bright but instead that the light [Dog surrounded by colorful lighting]
- 01:55
around it is changing well both of these constancy's allow us to make sense of
- 01:59
the world in a simple way or otherwise the constant growing and shrinking and [Magician makes woman grow and shrink]
- 02:03
color changing would make us wonder if we fell down a rabbit hole but neither are
- 02:08
our answers that must mean that Mary's perception can be described by [Mary thinking]
- 02:13
C) figure ground relationship when discussing the ability to discern
- 02:17
between objects we're talking about figure ground relationship first [Dog chewing a toy]
- 02:21
explained by Gestalt psychologists it describes how we automatically perceive
- 02:26
an object as a separate entity from its surroundings the figure cute little pup
- 02:30
here is the center of our attention so we're able to perceive it as separate [Puppy dog carrying a bone in its mouth]
- 02:35
from the background and in turn the bone so C) is the correct answer that was
- 02:39
the best test prep video ever right right come on now throw a dog a bone
- 02:44
here... [Girl holding a test prep book]
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