PSYA01H3 Chapter 4: Textbook-Chapter 4
Document Summary
4. 1 sensation and perception at a glance. Sensation: the process of detecting external events by sense organs and turning those events into neural signals. Sensory receptors: structures that respond to external stimuli (ie. over the surface of the skin, the inside of the eye, and over the tongue and nasal cavity) Perception: involves attending to, reorganizing, and interpreting stimuli that we sense. A skill that our brains learn through experience; influences how we adapt to sensory stimuli in our everyday lives. Transduction: the process in which physical or chemical stimulation is converted into a nerve impulse that is relayed to the brain. It is not the original sensory input that is most important for generation our perceptions; rather, it is the brain area that processes this information. Doctrine of specific nerve energies: the idea that the different senses are separated in the brain, proposed by german physiologist johannes m ller in.
