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Gen Pysch exam 2
| Question | Answer |
|---|---|
| Hue | Visual experience specified color names and related to the wavelength level |
| Brightness | amount of light reflected |
| saturation | complexity of light waves |
| Absolute thershold | smallest quantity of physical energy that can be reliably detected by an observer E.X.: tick of a watch from 20 feet of quietness |
| Different thersold | smallest difference in stimulation |
| Sensation | the detection of physical energy emitted or reflected by physical objects; occurs when energy in the external environment or body simulates receptors |
| Perception | process by which the brain organizes and interprets sensory information |
| synethsia | correlation which stimulation of once sense also evokes another |
| adaptation | reduction or disappearance of sensory reposiveness when stimulation is unchanging repetitious |
| Psychoactive drug | substance capable of influencing perception, mood, cognition, or behavior; depressants, simulations, opiates and psychedelic |
| Freud | dream might provide insight into our unconscious |
| Why sleep | eliminates waste, repair cells, recover ablities lost in the day |
| Sleep apnea | stops breathing, chokes, gasp |
| narcolepsy | sudden daytime attack of sleepiness or into REM sleep |
| 1 stage of sleep | feel self dirffint on the edge of consciousness ; small irregular waves |
| 2 stage of sleep | minor noises don't disturb you; some delta waves |
| 3 and 4 stage of sleep | breathing and pulse have slowed down; deep sleep; delta waves |
| REM | Rapid Eye Movement; lose of muscle tone, dreaming |
| Consciousness | awareness of oneself and the enviorment |
| biological rhythms | a periodic, more or less fluctuation in a biological system |
| Circadain | one about 24 hour, 24 hour cycle; occurs in animals, plants, people; located in hypothalamus, regulates melatoin |
| infadian | less frequently than once a day |
| ultradain | occur more frequently than once a day |
| Internal desynchoronization | when biological rhythms are not in phase with each other ex: sickness, jet lag |
| Seasonal affective disorder (SAD) | disorder in which a person experience depression during winter and improvement in spring; treatment- photo therapy, florescent light |
| Serotonin | sleep,mood, eating |
| Dopamine | movement, learning, memory, emotion, pleasure harmfulness: loss of cells, tremors, parkinsons |
| acetylcholine | muscle action, memory, emotion harmfulness: memory problems, people with alzhemer |
| norepinphrine | heart rate, learning, memory |
| GABA | major inhibitory neurotransmitter in the brain harmfulness: abnormal levels of sleeping and eating |
| Glutamte | major exhibitor harmfulness: over producing cells damages or kills glial cells |
| Endorphoine | reduces pain, promotes pleasure harmfulness: |
| Neurotransmitter | chemical released by a transmitting neuron at the synapse and capable of affecting the activity of a receiving neuron |
| plasticity | brains ability to change and adapt in response to experience; reorganizing or grown new neural connections major or neurotransmitters |
| melation | secreted by pineal gland, helps to regulate daily biological rhythmes and promotes sleep |
| pons | involved in sleeping, walking, dreaming |
| cerebellum | regulates moment and balance involved in learning of simple responses |
| thalamus | relays sensory messages to higher centers |
| Neurospcohologists | study of the brain and nervous system; consciousness, perception and memory |
| brain and spinal cord | neurons and supportive tissue running down back |
| peripheral nervous system | handles the central nervous systems input and output |
| Neurons | the brains communication specialists, transmitting information to, from and within the central nervous system; glial cells |
| Myelin sheath | a fatty material that overs many axons; prevents signals in adjacent cells from interfering with each other; speeds up the conduction of neural inplus |
| stem cell research | embryonic stem cells hold the premise of medical advances, yet federal funding faces resistance from some advocates |
| medula | functions as; breathing, heart rate |
| reticular activity system | arouses cortex and screens incoming information |
| pituitary gland | small endocrine gland which releases hormones and regulates other endocrine glands |
| hippocampus | responsible for storage of new information in memory; comparing sensory information with what the brain expects |
| amyagala | responsible for arousal, regulation of emotion, emotional reaponse to sensory information |
| cerebrum | largest brain structure; connected by corpus callosum; in charge of most sensory, motor, and cognitive processes |
| occipital lobes | visual cortex |
| parietal lobes | somatosensory cortex |
| temporol lobes | memory; perception, emotion and auditory cortex |
| frontal lobes | emotion, planning, creative thinking, and motor cortex |
| left lobe | brocas area |
| corpus collosum | millions myelinated axons connecting brains hemispheres pathway for communication |
| rods | visual receptors that respond to dim light |
| cones | visual receptors involved in color vision |
| proximity | thing to one another are grouped together |
| convergence | turning inward of the eyes which occurs when they focus on a nearby object |
| retinal disparity | slight difference in lateral separation between two objects as seen as by the right and left eyes |
| loudness | dimension of auditory experience related to the intensity of a pressure wave |
| pitch | frequency of pressure wave |
| timbre | complexity of a pressure wave |
| taste buds | sweet,sour,bitter,salty |
| visual cliff | depth perception |
| tactile | learn different ways |
| 4 main sensations preceptors on skin | hot,cold,pain,pressure |
| soundwaves | molecules of air on fluid collide and move again |
| perception | a set of mental operations that organizes sensory impulses into meaningful patterns |
Created by:
moonflood
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