Sensation & Perception Part 1 Flashcards
Process by which we detect physical energy from the environment and encode neural signals
Sensation
Process by which the brain organizes and interprets sensory information
Perception
Analysis begins with the sense receptors and works up to the brain’s integration of sensory information
Bottom-Up Processing
Inductive Reasoning is an example of what?
Bottom-Up Processing
Information processing fuided by higher-level mental processes
Top-Down Processing
Deductive Reasoning is an example of what?
Top-Down Processing
Study of relationship between physical characteristics of stimuli and out psychological experience of them
Psychophysics
Minimum stimulation needed to detect stimulus 50% of the time
Absolute Threshold
Explains how and when we detct the presence of faint stimulus/signals
Signal Detection Theory
Depends partly on experience, expectations, motivation, and altertness
Signal Detection Theory
One that is below the absolute threshold/ conscious awareness
Subliminal Stimulus
Minimum Difference between 2 stimuli that subject can detect the difference between
Difference Threshold
Just Noticeable Difference JND
States that the JND between 2 stimuli is a constant minimum percentage of the stimulus
Weber’s Law
Decreases Sensitivity that occurs with continued exposure to an unchanging stimulus
Sensory Adaptation
Our perceptions of our sense depend on how focused we are on them
Sensory Habituation
