Psychology - Stimulation of Senses

**[psychology]** [Chapter 4 sec 1] [Stimulation of senses:] Sensation is the stimulation of sensory receptors and the transmission of sensory information to the central nervous system perception is the psychological process through which we interpret sensory stimulation The absolute threshold i...

**[psychology]** [Chapter 4 sec 1] [Stimulation of senses:] Sensation is the stimulation of sensory receptors and the transmission of sensory information to the central nervous system perception is the psychological process through which we interpret sensory stimulation The absolute threshold is the weakest amount of stimulus that can be sensed. We can sense the sounds,smells,tastes,sights and pressures we can perceive The human ear can hear between 20Hz and 20,000 Hz while the human eye can see all the colors between red and violet Difference threshold is the minimum amount of difference that can be detected between 2 stimuli Think about when you are watching TV and a commercial comes on can you tell a difference? [Sensory Adaptation:] Our sensory adaptation system adapts to a changing environment Sensory adaptation is the process by which we become more sensitive to weak stimuli and less sensitive to unchanging stimuli Think about when the electricity goes off you notice that the fan was making a sound