PSY 201 Chapter Notes - Chapter 5: Olfactory Nerve, Vagus Nerve, Absolute Threshold
Document Summary
Describe how sensory information is translated into meaningful signals. Explain how thresholds are related to signal detection and sensory adaptation. 5. 1 sensory information is translated into meaningful signals. Sensation the detection of physical stimuli and transmission of that information to the brain. Perception the brain"s further processing, organization, and interpretation of sensory information. Bottom-up processing based on the physical features of the stimulus. Top-down processing how knowledge, expectations, or past experiences shape the interpretation of sensory information. Receptora light-sensitive rods and cones in retina of eye. Pathways to the brain optic nerve. Receptors pressure-sensitive hair cells in cochlea of inner ear. Pathways to the brain auditory nerve. Stimuli molecules dissolved in fluid on the tongue. Receptors cells in taste buds on the tongue. Pathways to the brain portions of facial, glossopharyngeal, and vagus nerves. Stimuli molecules dissolved in fluid on membranes in the nose. Receptors sensitive ends of olfactory mucous neurons in the mucous membranes.
