PSYCH 112 Chapter Notes - Chapter 4: Sensory System, Phosphene, Psychophysics
Document Summary
Illusion the way a human perceives a stimulus that does not match the physical reality. Sensation detection of physical energy by our sense organs (eyes, ears, skin, nose and tongue), which relay information to the brain: allows humans to pick up signals from the environment around them. Perception brain"s interpretation of raw sensory inputs: allows humans to assemble signals into something meaningful. Brain picks the types of sensory information it uses, and relies on past experiences to fill in the gaps. Transduction nervous system converting an external stimulus into electrical signals within neurons. Sense receptor specialized cell that transduces a specific stimulus. Sensory adaptation response to a stimulus declining in strength: prevents humans from attending to everything around them, example: after sitting in a chair, you don"t notice it. Psychophysics the study of how we perceive sensory stimuli based on their physical characteristics.
