Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Unit 4 Vocabulary
modules 16-21
| Term | Definition |
|---|---|
| Sensation | Process by which sensory receptors and nervous system receive and represent stimulus energies |
| Perception | Organizing and interpreting sensory information to recognize objects and events |
| Bottom-up Processing | Analysis which begins with sensory receptors and works up to the brain's sensory integration |
| Top-down Processing | Information processing beginning with higher-level mental processes |
| Selective Attention | Focusing of conscious awareness on a particular stimulus |
| Inattentional Blindness | Failing to see visible objects when our attention is directed elsewhere |
| Change Blindness | Failing to notice changes in the environment |
| Absolute Threshold | The minimum stimulation needed to detect a particular stimulus 50% of the time |
| Subliminal | Below one's absolute threshold for conscious awareness |
| Difference Threshold (JND) | Minimum difference between two stimuli required for detection 50% of the time. |
| Weber's Law | Principle that in order to be perceived different, 2 stimuli must differ by a constant percent |
| Sensory Adaptation | Diminished sensitivity as a consequence of constant stimulation |
| Transduction | Conversion of one form of energy to another; 5 senses --> neural impulses |
| Wavelength and Hue | Distance from peak of one wave to the peak of the next; dimension of color determined by wavelength |
| Intensity | Amount of energy in a light or sound wave, interpreted as brightness or loudness by amplitude |
| Accommodation | Process by which the eye's lens changes shape to focus on near or far objects |
| Rods and Cones | Retinal receptors that detect grayscale, used for twilight vision; Retinal receptors that detect color, used in well-lit conditions |
| Feature Detectors | Nerve cells in the brain that respond so shape/angle/movement of a stimulus |
| Parallel Processing | Processing of many aspects of a problem simultaneously |
| Audition | Sense or act of hearing |
| Frequency and Pitch | Number of complete wavelengths in a given time period; Tone's highness or lowness depending on frequency |
| Place Theory | Theory that links pitch with the place where the cochlea is stimulated |
| Frequency Theory | Theory that rate of nervous impulses traveling up auditory nerve matches frequency of a tone |
| Conduction Hearing Loss | Hearing loss caused by damage to mechanical system which conducts soundwaves |
| Sensorineural Hearing Loss | Hearing loss caused by damage to cochlea's receptor cells or auditory nerves |
| Cochlear Implant | Device to convert sounds into electrical signals and stimulate auditory nerve through electrodes |
| Gate-control Therapy | Theory that spinal cord contains "gate" to block or allow pain signals to pass |
| Sensory Interaction | Principle that one sense may influence another, like when smell influences taste |
| Gestalt | An organized whole. emphasized our tendency to integrate pieces into meaningful wholes |
| Grouping | Perceptual tendency to organize stimuli into coherent groups |
| Phi Phenomenon | Illusion of movement created when two or more adjacent lights blink in quick succession |
| Extrasensory Perception (ESP) | Claim that perception can occur apart from sensory input |
Created by:
landejer000
Popular Social Studies sets