1 / 9

Understanding Sensation: The Basics of Perception and Sensory Processing

Chapter Five delves into the fundamentals of sensation, exploring how we take in physical information from our environment. It covers key concepts in psychophysics, including thresholds, Weber's Law, and signal detection theory. The chapter examines vision's intricacies, from the structure of the eye to color theory, and introduces auditory processing through sound waves and the mechanics of hearing. Additionally, it discusses the other senses—touch, taste, and smell—along with body senses like kinesthesia and the vestibular system. This comprehensive overview highlights the complex interplay between sensation and perception.

dean-hood
Télécharger la présentation

Understanding Sensation: The Basics of Perception and Sensory Processing

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter Five Sensation

  2. The Basics • Sensation • The mechanical process by which we “take in” physical information from the outside world • Psychophysics • Thresholds • Absolute vs. j.n.d. • Weber’s Law • Signal Detection Theory • Subliminal Message • Semantic Priming • Behavior vs. Attitude • Adaptation • Habituation

  3. Vision • Transduction • Light Energy • Wavelength – hue • Amplitude – intensity • The Eye • Cornea  Pupil (Iris)  Lens  Retina • The Retina • Rods, Cones • Blind Spot & Fovea

  4. Vision (cont’d) • Feature Detection • Parallel Processing • We process several things at once • Visual interpretation takes 30% of the cortex!! • Selective motion neglect • Lateral neglect (blindsight) • Color Vision • Young-Helmholtz Trichromatic Theory • Opponent process theory • Red-green; blue-yellow; black-white • Color blindness • Afterimage Effect • Vision and Learning • Brightness Contrast

  5. Auditory Processing (Audition) • Sound Wave  Outer Ear  Middle Ear  Inner Ear • Sound Wave • Amplitude – loudness (decibels) • Frequency – pitch • Outer Ear • Pinna  Auditory Canal  Tympanic Membrane • Middle Ear • Ossicles: Hammer  Anvil  Stirrup • Inner Ear • Cochlea: Oval Window  Basilar Membrane  Cilia (Loudness) • Auditory Nerve

  6. Perceiving Pitch • Helmholtz’s Place Theory • Different places on the cochlea’s basilar membrane • Frequency Theory • It is the frequency at which the basilar membrane vibrates • Locating sound in space

  7. Heh? What? I can’t hear you! • Conduction hearing loss • Problems with the mechanics of the ear • Eardrum, ossicles • Sensorineural Deafness • Problems with nerves or cilia • Cochlear implant

  8. The Other Senses • Touch • Pressure, temp & pain • Gate theory • Taste • Sweet, Sour, Salty, Bitter • Smell & Taste • Smell • Olfactory Nerve sends to limbic system and temporal lobe

  9. Body Senses • Kinesthesis • Ability to sense position and motion • proprioception • Vestibular Sense • balance • Semicircular canals • Synesthesia

More Related