Sensation & Perception Flashcards
Sensation
Taking info from the environment through sense organs and turns it into neural signals
Perception
How our brain makes sense of the info that are senses provide
Bottom-up processing
Starting at the sensation and forming a perception as you get more info. (building up)
Top-down processing
Starting at the perception and confirming what you already know
Selective attention
Focusing out awareness on one type of stimulus and ignoring others
Inattentional Blindness
Failing to see an object when out attention is elsewhere
Absolute threshold
The awareness/activation of a sense
Signal detection theory
When we anticipate a stimulus so we are more likely to detect it
Subliminal messages
occur bellow are absolut threshold and are not consciously perceived
Priming
Increased sensitivity to certain stimuli due to prior experience related to visual or audio messages.
Difference threshold
A sense is activated and the point you notice a change
Webers law
The amount of change needed to detect a difference is equal to the size of the original stimuli
Sensory adaptation
Getting use to a sensation and being unable to detect after a period of time
Perceptual sets
Tendency to use surrounding info to help interpret what we experience in the world
How dose the environment impact our perceptual sets
How does the ENVIRONMENT impact our perceptual sets
It can change ow you perceive the info
How does MOTIVATION impact our perceptual sets
Forces us to focus on one thing that is relevant at that point in time.
How dose EMOTIONS impact our perceptual sets
May force someone to see everything in a negative light
Hue of colors
The wave length
Stroop Effect
the Stroop Effect allows us to measure a person’s selective attention capacity and skills, as well as their processing speed ability.
Cornea
Protective outer layer of the eye
Pupil
Controls how much light is allowed into the eye
Iris
Colored part of the eye
Lens
Bends light and focuses it on the retina to help you see images clearly.