Thresholds (21)

Gustav Fechner

psychophysics attempts to quantify the relationship b/w physical stimuli and the sensational perceptions they produce

Absolute Threshold

absolute minimum amount of stimulus that is necessary for you to perceive it

Difference Threshold

ability to identify a change in the stimulus

Subliminal

detects stimulus less than 50% of the time

Signal detection theory

intensity of the stimulus and the physical/psychological state of the individual

Weber’s Law

more difficult to detect the difference threshold in high stimulus situations than it is to detect difference thresholds in low stimulus situations

Sensory Adaptation

constantly exposed to stimulus we can’t change we get accustomed b/c our nerve cells fire less frequently during transduction

Context Effect

context can influence our perception on the stimulus

Motivation

how much we want an object can influence our perception

Cultural

influence of culture on perception