Chapter 3 The Body Senses
o The body senses provide information about surfaces in direct contact with the
skin, about the position and movement of body parts, and about the position and
movement of the body relative to the outside wor
Chapter 9 Form and Object Perception
ImageLocal FeaturesShape RepresentationObject Representation
Three Stage Models Of Object Perception
o Image is Translated
o 1. Local Features: Primal Sketch
o 2. Shape Representation: What shapes are in the item to be
Chapter 10 Depth Perception
Understanding spatial relationships; distance; how far or close an object is to you
o Makes object different based on appearance
o The world is in 3 axis: x, y, &z axes
o We only directly perceive x & y and hav
Chapter 11 Visual Motion Perception
The world is not still. It is constantly moving. We have to see things that move.
How does the brain detect movement?
Uses of Motion Detection
o Figure Ground Segmentation detecting something from the background.
Chapter 12 Color Vision
Color is different wavelengths of light. On objects, we see reflected wavelengths of light.
o Ex: an orange: the color orange is reflecting off the orange, while other colors are being
absorbed. The color reflects off the light an
Chapter 13 Multiple Processes
Theory of cognitive processing in which different functions such as vision, hearing, and
memory are implemented in separate and independent processing modules.
Each module can be optimized for its specific
Chapter 14 Individual Differences in Perception
Age Related changes
o 1st decade of life senses improve.
o After the 5th decade, it starts to decline.
o Sense organs are getting worn out; changes in efficiency in the sense organs.
Chapter 4 Physics and Biology of Audition
Advantages of Audition over Vision
o Not limited by direction
Field of Vision270O
Field of Hearing360O
o Can be sensed through some occlusions
o Does not require light
Sound as a Physical Stimulus
o Sound is made
Chapter 5 Perception of Audition
o Making sense of the 50,000 fibers in the auditory nerve
o Sound Qualities
Loudness what is loud compared to something else
o Perceptual attribute of a sound that relates to its intensity (SPL)
Chapter 6 Physics of Light
Light wave, particle, or ray
o Consists of Vision
o Light is a form of radiant energy that is capable of stimulating receptors in the eye and evoking a
Three ways of Defining Light
o Rays emits; instantaneous b
Chapter 7 Visual Physiology
From Light to Sight
o 100 ms journey
o Three Parts
o Nothing has changed
o The retina contains the neural circuitry connecting photoreceptors to the ganglion cells,
Chapter 8 Spatial Vision
o Photopic vs. Scotopic Vision
Photopic is at higher light levels (cones)
o Vision at the high ambient light levels typical of daylight, mediated by
Scotopic is at lower light levels
Chapter 1 Introduction to Perception
What is Perception?
o Perception involves highly complex neural processes that consume a substantial
proportion of the brains cerebral cortex.
o How our body interprets stimuli from outside world
o Sensation - stimulat
Chapter 2 The Chemical Senses
o Molecules from external substances interact with receptor sites in the nose and
Smell distance sense; do not have to have physical contact with it;
molecules ride on air currents (nose).
Chapter 8 Spatial Vision
Spatial Scale measuring the fine details; filter out important information; 2 types
o Low Pass extracting basic features; course scale information; highest contrast; can make out
face; broad general features.
o High Pass see fine