PSYA01H3 Chapter Notes - Chapter 4.1: Dental Fear, Sensory Neuron, Absolute Threshold
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4. 1 sensation and perception at a glance. Sensation process of detecting external events by sense organs and turning those stimuli into neural signals. Sensory level sound of someone"s voice is simply noise and sight of person is merely a combination of color and motion. Perception happens at brain and involves attending to, organizing and interpreting stimuli that we see. Perception recognizes sounds as a human voice, and identifying certain colors, shapes and motion together make up the image in front of you. Transduction raw sensation detected by sensory organs are turned into information that can brain can process. Transduction specialized receptors transform physical energy of the outside world into neural impulses. Neural impulses travel into brain and influence activity of different brain structures, which ultimately give rise to our internal representation. Sensory receptors involved with transduction are different for each sense.
