Sensation Flashcards
Sensation
physical response to stimulation
Stimulus
any outside factor that arouses a sense organ
Receptor Cell
neurons specialized for each sense
Detection
body noticing the stimulus
Discrimination
distinguishing differences
Noise
any background stimulation
Absolute Threshold
minimum stimulus needed to detect stimulus
Difference Threshold
how different until differentiable?
Weber’s Law
difference threshold = ratio
Signal Detection Theory
miss vs. false alarm vs. hit vs. correct rejection
Distal Stimulus
actual wavelength
Proximal Stimulus
signal the brain can use; transduced from distal stimulus
Sensory Adaptation
get used to stimulation
Habituation
brain gets used to it
Sensory Restriction vs. Deprivation
restrict stimulus vs. deprive stimulus (torture)