The Eye
The lens focuses on light by changing its own thickness. What is this called?
Accommodation
Sound is measured in what?
Wavelengths
The process of reacting to certain stimuli selectively when several occur at the same time is called what?
Selective Attention
The ability to recognize distance and three dimensional images is called what?
Depth Perception
The process by which we identify the direction from which a sound is coming is called what?
Sound Localization
When light enters the eye, it goes through four parts of the eye. Name them in order.
The cornea, the pupil, the lens, the retina.
Which part of the ear vibrates with the intensity of sound?
The eardrum
A change in a visual stimulus is introduced and the observer does not notice it is called what?
Inattentional Blindness
What is a gestalt?
Taking pieces of information and turning it into a meaningful whole.
Our smell is responsible for how much of our taste?
80-95%
Explain the function of the rods and cones.
Answers with vary
Which part of the ear helps maintain our balance?
Cochlea
conversion of one form on energy into another (in sensation, the transforming of stimulus energies such as sights, smells into neural impulses our brain can interpret.
Transduction
What is the difference between binocular cues and monocular cues?
Binocular - depth cues that depend on two eyes
Monocular - depth cues about distance based on the image of one eye
These cells form together like a rope and create the optic nerve.
Ganglion Cells
Why do we have blindspots?
There are no rods or cones located where our optic nerve meets our retina.
Name the three small bones that act as levers in the middle ear?
hammer, anvil and stirrup
Describe the difference between Bottom-Up and Top-Down Processing.
Bottom-Up - taking sensory information then assembling it
Top-Down - using models, ideas and expectations to interpret sensory information
List the six Monocular Cues
Interposition, Height in Plane, Relative Motion, Texture Gradient, Relative Size, Light and Shadow, Linear Perspective
What are the three theories that describe different pitches that we hear?
Volley Theory, Frequency Theory, Place Theory
Explain the Trichromatic Theory and the Opponent Process Theory.
Answers with vary
What is the difference between sensorineural deafness and conduction deafness?
Sensorineural - damage to cochlea (more common)
Conduction - damage to the eardrum (less common)
What is the difference between absolute threshold and difference threshold?
Absolute - the smallest intensity of a stimulus that must be present to be detected
Difference - the smallest level of stimulation change required to sense that change
This term refers to the ability to perceive an object as unchanging despite changes in sensory input, such as varying lighting or distance. What is this phenomenon called?
Perceptual Constancy
Describe light and dark adaptation.
Answers will vary.