Unit 2 Flashcards
What Is IV?
Independent Variable, is what is being changed during the experiment
What is DV?
Dependent Variable, is what is being measured during the experiment
What is EV?
extraneous variable, is not the IV what it can also affect the results of the DV
What is a hyspothesis?
A prediction on how the change of the IV will affect the Dv
What does it mean to operationalise?
Whee the variable is stated in terms to show how to is measured.
What Is Synasthesis?
Synthesis is where one stimulus triggers another. It is where the senses are mixed/crossed.
What are psychological factors that influence perception?
food packaging and looks, culture/education, experience, interpretation of taste.
What do you mean when you say perceptual set?
Is what we expect to happen or experience.
List what may affect perceptual set in vision.
previous experiences, emotion, context or environment and motivation
List what may affect perceptual set in taste
age, genetics, colour intensity and texture.
List the 3 visual illusions
Ponzo Illusion, Ames room, Muller-lyer.
How does the Ponzo illusion work.
Where the line appears to be bigger but in reality it is the same size.
How does the Ames room illusion work?
The people seem to be shrinking or growing larger
What happens in the muller-lyer illusion?
The lines look different sizes because of the arrow heads.
What is the definition of visual illusion?
When perception consistency differs from objective to reality.
What are the pictorial depth cues?
Linear perspective, interposition, texture gradient, relative size and hight in the visual field.
What is linear perspective?
Where two parallel lines look as though they will converge as the go towards the distance.
What is interposition?
(overlapping) where the object in front looks closer than the object behind.
What is texture gradient?
Where things closer to us have more detail than things further away.
What is relative size?
Where things that are smaller look further away from us and things that are bigger are closer to us.
What is hight in the visual field?
The closer the object is to the horizon the further away it is. (Includes on land and in the sky)
What is depth perception?
It is what allows us to judge 3D space and distance using cues in the environment.
How many eyes does Binocular use?
both eyes
How many eyes does Monocular use?
one eye
What depth cues does binocular use?
retinal disparity and convergence
What depth cues does monocular use?
accomodation and pictorial depth cues.
What is retinal disparity
Happens when an object is within 20m of the eyes and it is where one eye receives a slightly different image to the other so the brain fuses them together.
What is cenvergance?
It is when an object moves closer to our eyes so our eyes converge to keep the image centred on the retina.