PSYC 1200 Chapter Notes - Chapter 4: Stirrup, Myelin, Limbic System
2 Nov 2017
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Chapter 4 textbook notes: 1 sensation and perception at a glance. The first step of perception is sensation: the process of detecting external events by sense organs and turning those stimuli into neural signals. This raw sensory information is sent to the brain were perception occurs. Perception: involves attending to organize, and interpreting stimuli that we sense: how certain colours, shapes, motions work together. Transduction: when specialized receptors transform the physical energy of the outside world into neural impulses. This is when raw senses by sensory organs are turned into information the brain can process. The neural impulses travel through the brain and influence the activity of different brain structures. Sensory receptors are most responsive upon initial exposure to a stimulus. Light reaches back of eye, light sensitive chemicals in the retina convert the energy into nerve impulses, which travel to brain centers where colour and motion are perceived.
