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psy2.
psy
Question | Answer |
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Sensation | the stimulation of sensory receptors by various forms of energy |
perception | the process by which sensations are organized into an inner representation of the world |
what are difference b/w sensation and perception | sensation is the pickup of information by our sensroy receptors, Perception is the interpretation of what is sensed |
How do we sense our world? | sight, hearing, taste, smell, touch, pressure, Kinesthesis, vestibular sense. |
How do sensory organs function? | Organs detect sensation and transmitts to brain |
Neural code | how sensory and other information is presented in the brain by networks of neurons. |
Botton up | The manner in which biological structure and fuction. Determine what is procede. |
Top down | The manner in which your mood, social situation beliefs, and culture of origin influences what is proceed. |
Pupil | The apparenently black opening in the center of the iris, through which light enters the eye. |
Iris | A muscular membrane whose dilation regulates the amount of light that enters the eye. |
Lens | A transparent body behind the iris that focuses an image on the retina. |
Retina | The area of the inner surface of the eye that contains rods and cones. |
Fovea | An area near the center of the retina that is dense with cones and where vision is consequently most acute. |
Optic nerve | The nerve that transmits sensory information from the eye to the brain. |
Blind spot | The area of the retina where axons from ganglion cells meet to form the optic nerve. |
Cornea | Transparent tissue forming the outer surface of the eyeball. |
Accommodation | the modification od schemas so that information inconsistant with exsting schemas can be integrated or understood. |
Electromagnetic spectrum | the range of all possible frequencies of electromagnetic rediation |
How does the eye works? | The many parts of the eye works together transform light rays passing through your pupil into information that you brain can interpret. |
Cones | cone-shaped photoreceptors that transmit sensation of color. |
Rods | Rod-shaped photoreceptors that are sensitive only to the intensity of light.(night vision) |
Trichomatic theory | The theory that color vision is made possible by three types of cones, some of which respond to red light, some to green, and some to blue. |
Primary pathway | Eyes and retina, travels to the lateral geniculate nucleus, to the primary visual cortex, and then to either the dorsal or ventral pathway. |
Perceptual organization | the tendency to integrated perceptual elements into meaningful patterns. |
Gestalts | unified whole |
Figure ground perception | organized perception into a figure and background |
Proximity | percieve stimuli as going together due to their closeness in space. |
similarity | organization of stimuli into similarties and differentiate(colors, shape). |
Continuity | the tendency to perceive a broken figure as being complete or whole. |
Closure | the tendency to perceive a series of points or lines as having unity. |
Binocular cues | Stimuli suggestive of depth that involve simultanneous perceive by both eyes. |
Monocular cues | Stimuli suggestive of depth that can be perceived with only one eye. |
Barbiturates | An addictive depressant used to relive anxiety or induce sleep(drowsiness, motor impariment, slurred speech, irritability, poor judgement). |
Amphetamines | stimulants derived from alpha-methyl-beta-phenyl-ethyl-amine, a colorness liquid consisting of carbon, hydrogen, and nitrogen. |
Cocaine | Stimulant that produces euphoria, reduces hunger, deadens pain, and bolsters self-confidence. |
Nicotine | Stimulates discharge of the hormone adrenaline and the release of many neurotransmitters, including dopamine and acetylcholine. |
LSD | Lysergic acid diethylamide. A hellucinogenic drug. |