Chapter 5 Part One Flashcards
Perception
How to interpret signals
Sensation
Processing and detecting neural signals
Bottom-Up Processing
Taking in the stimuli
Top-Down Processing
Based on experience and expectations
Prosopagnosia
Complete sensation but incomplete perception
Failure of perception (Top-Down Processing)
Psychophysics
Study of physical characteristics of stimuli - mental phenomenon
Absolute Threshold
Minimum stimulation required 50% of the time
Signal Detection Theory
Detecting weak signals
Subliminal
Signals below awareness
Priming
Unconscious activation of certain associations
Predisposing perception, memory, or response
Difference Threshold
Difference between two stimuli (jnd)
Weber’s Law
In order to be different, must differ by a certain percent
Sensory Adaptation
Diminishing sensitivity of unchanging stimulus
Transduction
Conversion of one form of energy into another
Wavelength
Distance between waves