October 1 2012
Sensation is the stimulation of sense organs, all things we feel. (ie.
Touching, smell, etc.).
Perception is the selection, organization and interpretation of sensory
input. It is not sensation. It is selecting only the important information
because we cannot handle all the information (it is subconscious). You
pay attention to things based on our experiences and we change it every
time we have a new sensation and experience. Ie. We pay attention to
fear, etc. You don’t pay attention to things that have never been shown to
be important (such as movement in the lecture hall).
One thing that happens can alter your perception forever. (ie. Getting
beaten up and then never feeling safe again when you are on a walk).
―nothing is as it is, it’s only how you see it‖
Perception is unquantifiable it’s subjective, unique and we do not know
whether others see things the same way we do (ie. Colours)
Perception is influenced by culture, experience, genetics, etc.
Sound is vibrating molecules
¾ of the cortexes of the brain are involved with vision
Subliminal messaging ie. Flashing an image to someone but them
reporting to not see it
People always like to think that they are right
Arbitrary figure – ability to detect the stimulus 50% of the trials (absolute
Ie. Putting in a teaspoon of sugar in 7.5 litres of water we can detect
Just Noticeable Differen