the process that occurs when special receptors in the sense organs are activated, allowing various forms of outside stimuli to become neural signals in the brain

• sensation

• transduction

• synesthesia

• sensory receptors

the process of converting outside stimuli such as light into neural activity

• sensation

• transduction

• synesthesia

• sensory receptors

condition in which the signals from the various sensory organs are processed differently, resulting in the sense information being interpreted as more than one sensation

• sensation

• transduction

• synesthesia

• sensory receptors

Ernest Weber - the smallest difference between two stimuli that is detectable 50 percent of the time

• just noticeable difference (difference threshold)

• absolute threshold

Gustav Fechner - the lowest level of stimulation that a person can consciously detect 50 percent of the time the stimulation of present

• just noticeable difference (difference threshold)

• absolute threshold

provides a method for assessing the accuracy of judgements or decisions under uncertain conditions; used in perception research and other areas

• signal detection theory

• habituation

• sensory adaptation

tendency of the brain to stop attending to constant, unchanging information

• signal detection theory

• habituation

• sensory adaptation

tendency of sensory receptor cells to become less responsive to a stimulus that is unchanging

• signal detection theory

• habituation

• sensory adaptation

determined by the amplitude of the wave

• brightness

• color

• saturation

determined by the length of the wave

• brightness

• color

• saturation