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