Sensations Flashcards
Absolute Threshold
The smallest level of stimuli that can be detected
Difference Threshold
Smallest noticeable difference between 2 stimuli
Weber’s Law
Difference threshold varies depending on intensity of original stimulus
Transduction
Act of sensing
Sensory Adaption
Growing a tolerance for a stimulus
Signal Detection Theory
Predicts when you will detect a stimulus
- No abs. Threshold
- Factors (alertness, motivation, etc. )
Inattentional Blindness
Not noticeable obvious object because attention was engaged.
Change Blindness
Failing to notice changes in enviroment
Subliminal messages
Detection of stimulus unconsciously.
Mere exposure effect
Repeated exposure to stimuli leads to liking for stimulus
Sensation
The process of detecting a physical stimulus.
Psychophysics
How sensation effects psychology
Pupil
Opening in the iris that lets light in.
Cornea
Clear membrane that covers the front of the eye
Retina
Thin light sensitive membrane located in the back of the eye
Iris
Colored part of the eye
Lens
Transport structure behind the pupil; bend light entering the eye
Accommadation
Process by which the lens changes shape to focus light onto retina.
Feature Decectors
Nerve cells in brain that responds to specific features. (movements, texture)
Ganglion cells
Neurons that connect Bipolar cells