Sensation Fundamentals

Sensation

sensory & nervous system reiche and represent stimulus energies from our enviornment

Perception

process of organizing & interpreting sensory info to make sense of the world around us; involves brains interpretation of sensory inputs

Transduction

conversion of sensory stimuli into neural impulses that can be understood by the brain

Absolute Threshold

minimum amount of stimulation required ti detect a stimuli 50% of the time

Subliminal

below ones absolute threshold for conscious awareness

Just-Noticeable Difference (JND)

the smallest change in stimuli that can be detected by an individual; the minimal difference needed for a person to perceive that change

Weber’s Law

the perceived difference in a stimulus must be proportional to the original intensity; the bigger something is the more change needed

Sensory Adaptation

the process by which sensory receptors become less responsive to constant stimuli over time

Synesthesia

stimulation of one sensory pathway leads to automatic, involuntary experiences in another sensory pathway