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Gen Pysch exam 2

QuestionAnswer
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