Thresholds
The smallest amount of stimulus we can detect in our environment is
Absolute threshold
This theory investigates the effects of the distractions and interference we experience while perceiving our environment.
Signal Detection Theory
Our ability to maintain a constant perception of an object despite changes is called
Constancy
When a person claims a sense outside of the five regular senses
Extra Sensory Perception
The individual awareness of a stimulus that is subject to interpretation and analysis.
Perception
Sensory stimuli that is just below our absolute threshold is said to be
Subliminal
We perceive by filling in the gaps in what we sense. It is often based on our experiences.
Top-Down processing
Objects closer to our eyes will produce bigger images on our retinas
Size Constancy
We perceive objects as being a constant color even as the light reflecting off the object changes
Brightness constancy
Just Noticeable Difference is called
Weber's Law
The smallest amount of change needed in a stimulus before we detect a difference.
Difference threshold
A predisposition to perceiving something a certain way based on our experiences
Perceptual set
Objects that make up a recognizable image may have gaps but is perceived as whole.
Closure
Images presented at a certain speed will appear to be moving
Stroboscopic effect
A mental representation of our world based on our cognitive map is called
Schemata
This person contributed the concept that the more intense the stimulus, the more we notice the change.
Gustav Fechner
We use only the features of the object to build a complete perception.
Bottom-Up processing
Objects viewed from different angles will produce different shapes on our retinas
Shape constancy
Each of our eyes sees any object from a slightly different angle. The closer the object, the greater the difference.
Binocular disparity (retinal disparity)
Objects that block the view of an object appear closer to the viewer
Interposition cues
This law states, "the change is proportional to the original intensity of the stimulus".
Weber's Law
What part of a visual image is the figure, and what part of the figure is background.
Figure-ground relationship
Objects that are close together are more likely to be perceived as belonging in the same group
Proximity
Depth cues that do not depend on having two eyes are called
Monocular cues
if a person can see out of one eye, the one binocular cue that person could NOT use would be.
Convergence