Sensation and Perception Flashcards
(18 cards)
Bottom Up
Based on physical feature
Combines each element to a whole persepctive
Top Bottom
Based on Previous knowledge and experience
Expectations influence what is percieved
Absolute Threshold
The min intensity before sensation is experienced
Difference Threshold
The smallest difference between two stimuli that you can notice
Weber’s law
Different threshold is based on og stimulus
Signal detection theory
Detecting of a stimulus requires judgement
Sensitivity to the stimulus while distractors are present
Criteria used for judgment making
Sensory Adaptation
A decrease in sensibility to a constant level of stimulation
present for all senses
Depends on experience
Rods
Responsible for seeing in low levels of light
Cones
Responsible for seeing in high levels of light
Gestaft Principles
The idea that the brain organizes senory into organized wholes (like how we see cars as cars instead of a bunch of things combined)
Proximity
The closer objects are to eachother the more likely we’ll group them
Similarity
Tend to group according to how similar they are to eachother
Continuity
Group contours that have the same orientation
Closure
Completing figures
Illusory Contours
Your mind bringing in depth
Fusiform gyrus
Facial perception and responds to upright faces
Face perception
Harder time recognizing inverted faces
Binocular Depth Cues
Binocular disparity which is caused by distance between humans to eyes
