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chapter 5 psych
sensation and perception
| Question | Answer |
|---|---|
| Sensation | the process of bringing new things in (5 senses) |
| Energy | sounds waves, heat waves, light and pressure |
| accessory structures | actual senses (ears, eyes) |
| transduction | converting outside energy into brain activity |
| absolute threshold | the smallest amount that you can detect |
| response bias | the understanding that we might not operate at full capacity |
| signal detection theory | picking specific senses to use |
| Weber's law | the law of how much we can detect. Small differences are easier to detect with lighter weight |
| Vision | Light waves |
| Light intensity | brightness |
| light wavelength | colors |
| saturation | darkness |
| hue | shade |
| rods | detect rays of light |
| cones | color. tri-chromatic theory(red, green, blue) |
| Parts of the eye | cornea, pupil, iris, lens, retina |
| cornea | curved outer protection portion (sensitive) |
| pupil | opening where light can enter, black circle in eye |
| iris | colored part of the eye. muscle that controls the pupil |
| lens | focus and zooms in like a camera. back of eye |
| retina | back inner part of eye, rods and cones |
| ocular accommodation | eyes can work together to give different images |
| pathway of visual information | goes through parts to the optic nerve then to the thalamus |
| Hearing | the passing of vibrations |
| Timbre | pitch and loudness |
| parts of ear | pinna, middle ear, inner ear |
| pinna | ear on side of head |
| middle ear | tympanic membrane(ear drum) |
| ear drum | hammer, anvil, and stirrup |
| inner ear | cochlea |
| acoustic nerve | takes info to the thalymus |
| deafness (congenital) | born with structural problems |
| conductive hearing loss | gradual damage to muscles |
| chemical senses | taste and smell |
| taste perception | chemicals react with taste buds |
| olfactory | smell |
| pheromones | animal world, smells can cause behaivors |
| papillae | taste buds (sweet, sour, bitter, and salty) |
| skin | largest organ |
| cutaneous senses | touch, temperature, and pain |
| pain pathway | skin to spinal cord then to thalymus |
| gate control theory | can block pain messages for short periods of time |
| analgesia | brain can send numbing messages |
| endorphins | pain managing |
| kinesthetic perception | where body parts are in relation to others |
| sense of equilibrium/vestibular sense | position of head, prevents dizziness |
| perception | making meaning out of stuff we detect |
| bottom-up processing | little kids, rely on 5 senses and builds up |
| top-down processing | filing cabinet, perception based on what we already know |
| gestalt | ability to see the big picture |
Created by:
victorialynn810
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