types of info processing
bottom-up
top-down
transduction
bottom-up processing responds to
sensation
top-down processing is
perception
necessare in order to convert the physical reality outside of your body into a signal inside of your body
transduction
sensation offers a blueprint by means of transduction onto which perception builds
sensation offers a blueprint by means of transduction onto which perception builds
thresholds
absolute
difference
threshold: you can detect this stimulus 50% of the time
absolute
threshold: minimum diff that enables you to identify one stimulus from another
difference