Intro to Psychology: Unit 2 Chapter 4 Flashcards
What are our 5 senses?
Sight, sound, touch, taste, smell
Perception vs Sensation
Sensation is stimulation we sense, perception is how we interpret the sensory input.
How does light vary?
It varies in Amplitude and Wavelength.
What is the eye’s TWO main purposes?
- Provide a House for neural tissue that receives light
- Channel light toward the retina so it can be processed
Define: Retina
Neural tissue that is in the back of the eye. (absorbs light, processes it, sends it to the occipital lobe of the brain)
Define: Cornea
Clear outer layer, transparent window where light enters.
Define: Lens
Focuses the image onto the retina
Define: Iris
Colored ring, a muscle that adjusts the pupil
Define: Pupil
Black, middle part, adjust how much light is coming in.
Near-sightedness vs Far-sightedness
Near-sightedness is when you can see close up but not distance, while Far-sightedness is the opposite.
In Near Sightedness, the eye compresses from top to bottom, while in Far Sightedness, the eye compresses horizontally.
Cones vs Rods
Cons help us see color and fine details in bright light, while Rods are sensitive to light, and help with night vision/low light.
Explain the Visual Pathway
When we see, axon leaves back of the eye, forms an optic nerve, sends to thalamus, then to occipital lobe.
What is a reversible figure?
You see 2 different interpretations of an image if you shift your vision a little.
Define: Phi-phenomenon
Creates the illusion of movement
Define: Figure & Ground
Image is dependent on what you focus on.
Ex: Face between Vase
