PSYC 3322 1st Edition Lecture 12 Outline of Last Lecture II. Neurobiology of DevelopmentIII. Correlating Behavior with Nervous System DevelopmentIV. Brain Development and the EnvironmentOutline of Current Lecture V. Nature of Sensation and PerceptionVI. Sensory ReceptorsVII. PerceptionCurrent LectureNature of Sensation and PerceptionReal world input to our brains is a bunch of action potentials that move along the neurons of the various sensory pathwaysSensory ReceptorsVision: Light energy → chemical energyAuditory: air pressure → mechanical energySomatosensory: Mechanical energyTaste and Olfaction: Chemical moleculesThe sensory receptor cell takes in stimuli and sends it to the appropriate section of the brain“Law of Specific Nerve Energies”Receptive fields: Specific part of the world to which a sensory-receptor organ respondsOptic flow: Stream of visual stimuli that accompanies an observer’s movement in spaceAuditory flow: Change in sound heard as a person moves past a sound source or as a sound sources moves past a personDensity is important in determining the sensitivity of a sensory systemThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.PerceptionSensation is essentially the registration of stimuliPerception is the interpretation of that
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