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6723130216Cerebellum"little brain"; processes sensory input, coordinates voluntary movements and balance, helps judge time, enables nonverbal learning and memory0
6723131706Frontal lobeportion of cerebral cortex involved in speaking, muscle movements and making judgements. includes prefrontal cortex, motor cortex and Broca's area1
6723134121Dendritebranching extension of a neuron that receives messages and conducts impulses toward cell body2
6723134897Axonextension of neuron, ending in branching terminal fibers, through which pass to other neurons, muscles or glands3
6723136938Corpus Callosumlarge band of neural fibers connecting two hemispheres of the brain and carrying messages between them4
6723138409Occipital lobeportion of cerebral cortex that receives information from visual fields5
6723139298Hippocampuspart of limbic system responsible for processing explicit memories for storage6
6723140534Serotoninchemical that affects mood, hunger, sleep, and arousal7
6723141027Sympathetic Nervous SystemDivision of autonomic nervous system that arouses body, mobilizing its energy in stressful situations8
6723145060Amygdalapart of limbic system linked to emotion; thought to determine whether we should emotionally react to sensory stimuli (rage or fear); processes emotional memories9
6723147475Temporal lobeportion of cerebral cortex involved in hearing and understanding sounds/language. includes auditory cortex and wernicke's area.10
6723150864Thalamusbrain's sensory switchboard, directs messages to the sensory receiving areas and transmits replies to cerebellum and medulla11
6723154439Action potential/depolarizationbrief electrical charge that travels down axon when positively charged K and NA ions travel inside axon meeting up with negatively charged Cl ions12
6723157027Somatic Nervous Systemdivision of peripheral nervous system; controls body's skeletal muscles (voluntary actions)13
6723159021Parasympathetic Nervous Systemdivision of autonomic nervous system; calms body, conserving energy14
6723160450Synapsejunction between axon tip of sending neuron and dendrite of receiving neuron15
6723162109Sperry and Gazzanigatheir split-brain research has shown complimentary functions of the right and left hemispheres16
6723164226Acetylcholinechemical that enables muscle action, learning, and memory17
6723165937Endocrine Systembody's "slow" chemical communication system; a set of glands that secrete hormones into bloodstream18
6723166640Neuronbuilding block of nervous system; nerve cell19
6723166983Parietal Lobeportion of cerebral cortex; receives sensory input for touch and body position. includes sensory cortex and association areas for mathematical and spatial reasoning20
6723171524Neurotransmitterschemical messengers that cross the synaptic gaps between neurons, influencing whether a neuron will start or stop firing21
6723176348Hypothalamusdirects maintenance activities ex. eating, drinking, temperature; helps regulate endocrine system, linked to emotion and reward22
6723179647Norepinephrinechemical that helps control alertness and arousal23
6724036711Dopamineinfluences movement, learning, attention, and emotion/pleasure24
6724038529Plasticitybrain's ability to change, especially during childhood, by reorganizing after damage or by building new pathways based on experience25
6724044953Brainstemoldest part of brain responsible for automatic survival functions. includes medulla, pons, and reticular activating system26
6729203731Psychophysicsstudy of how physical stimuli from environment are perceived by the brain27
6729211394Sensationdetection of a physical stimulus (light, sound, odors, taste, etc.) in the environment28
6729222466Perceptioninterpretation of a sensation29
6729227597Accessory Structurepart of a sense organ (ex. lens of an eye) that's responsible for collecting and modifying energy from environment30
6729238731Sensory receptorsspecialized cells that respond to certain energy fluctuations in the environment31
6729251758Transductionwhen physical energy is converted into neural code, making it possible for the brain to interpret the energy32
6729260960Thalamuswhere information is analyzed and relayed to the aptopiate area in the cerebral cortex33
6729276896Sensory cortexprocesses sensory information34
6729280705Absolute thresholdsmallest amount of stimulus energy necessary for sensation to take place 50 percent of the time35
6729294434Signal detection theoryexamines factors that affect the process of sensation36
6729301864Sensitivityability to detect a stimulus37
6729308268Response criterionperson's willingness to respond to a stimulus38
6729321502Difference Threshold (Just Noticeable Threshold)smallest detectable "difference" between two stimuli39
6729326482Weber's lawdifference threshold depends on the strength of the new stimulus in relation to the original stimulus40
6729338411Fechner's lawcontinuous increases in physical energy will result in similar increases in perceived magnitude41
6729347924Sensory Adaptationoccurs as sensory receptors lose their sensitivity in response to an unchanging stimulus42
6729356153Corneaclear, protective membrane that covers the eye43
6729361498Pupilopening in the eye that allows light to enter44
6729370506Irismuscle that determines the amount of light that enters through the pupil45
6729382998Lenslocated directly behind the pupil, bends light wave, focusing it on the retina46
6729392974Accommodationprocess of how lens focuses in and out on images47
6729396771Retinalight-sensitive membrane located in the back of the eye48
6729404430Photoreceptorssensory receptors responsible for converting light energy into neural code49
6729418864Rodsmore active in dimly lighted conditions and respond to black, white, and shades of grey50
6729426235Conesmore active in bright-light conditions and help in the detection of fine details and color51
6729432931Bipolar cellsspecialized neurons that connect rods and cones to ganglion cells52
6729553843Ganglion cellsspecialized neurons that receive and process information form the receptor cells before the information is sent to the brain53
6729838145Optic nervecarries visual information to the brain54
6729850439Optic diskarea that contains no rods and cones55
6729852071Blind spotwhere the optic nerve leaves the retina, producing a void in the visual field56
6729861555Optic Chiasmpoint where the nerves from each visual field meet in the brain and then cross to opposite side of the brain57
6729872721Primary Visual Cortexprocesses the visual information located in the occipital lobe58
6729878229Feature detectorsneurons in the primary visual cortex, specialized to respond to different aspects of an image (size, shape, and angle)59
6729894672Parallel processinghow the brain processes multiple sources of information simutaleously60
6729914088Huecolor that people psychologically perceive61
6729921472Saturationpurity62
6729925876Brightnessintensity; determined by the amplitude of a wave63
6729934553Subtractive color mixingmixing different paint colors by subtracting/absorbing wavelengths64
6729943791Trichromatic theory of color visionYoung-Helmholz theory, there are 3 types of cons, each sensitive to a specific wavelength (Rgb)65
6729955555Opponent-process theory of color vision3 pairs of color-sensitive components of the eye (red-green, blue-below, black-white)66
6729972796Afterimagewhen an image is perceived even though the stimulus has been removed67
6729983682Pitchproperty of sound wave, height of sound, determined by frequency68
6729989883Frequencynumber of complete waves that pass through a medium every secondP69
6729996668Hertzmeasurement of frequency70
6730000637Timbrepurity of sound wave71
6730013016Pinnapart of outer ear, visible outer part of ear, locates sound waves72
6730020765Auditory canalpart of outer ear, channels sound waves to the eardrum and produces wax to keep particles in environment out of the ear73
6730032078Eardrumpart of outer ear, a membrane that vibrates i response to incoming sound waves74
6730053922Cochleafuild-filed tube, resembles a snail-shell; causes basilar membrane vibrations75
6730072853Basilar membranelines cochlea, contains hair cells; causes auditory nerve to be stimulated76
6730086495Auditory nervecarries messages to thalamus then sent to auditory cortex77
6731300131Weber's Lawdifferent threshold depends on the strength of the new stimulus in relation to the original stimulus78
6731333675inattentional BlindnessThe inability to see objects due to distraction79
6731343555Cocktail party effect (selective attention)the ability to focus on one task while simultaneously focusing on another80
6731408704Schemasestablished mental representations of people,objects, and event81
6731443131Parallel distributed processing models (PDP)suggest that semantic and episodic memories become integrated with existing information82
6731521408encoding failureoccurs when information was never encoded into long term memory83
6731601233frequency matching theory (volley principle)pitch is perceived through the vibrations of the basilar membrane which is determined by the frequency of the sound84
6731618100olfactory receptor cellsare responsible for the detection of air molecules85
6731635751olfactory nervescarry information to the olfactory bulb86
6731640289olfactory bulblocated at the end of the olfactory cortex87
6731672659Sensory interactionoccurs when one sense influences another88
6731679100Ansomiawhen a person is unable to distinguish between different smells89
6731708391synethesiaodd interaction of the senses90
6731714570Pacinian corpuscleslocated beneath of the skin, detects touch and pressure91
6731722446gate control theorysuggest that pain is determined by the opening and closing of neurological gates in the spinal cord92
6731738263substance Pa neurotransmitter that activates other neurons to open the gate resulting in the perception of pain93
6731750668kinesthetic sensemonitors and coordinates movement among body parts94
6731774511proprioceptorssensory neurons located in joints and the inner ear and communicated information to the brain concerning tension and the movement in the body95
6731811133vestibularmonitors balance in response to movement detected by the proprioceptors96
6731826229perceptionas the awareness, integration, and organization of sensory stimuli97
6731831306bottom-up processingis the organization of information without the use of prior knowledge, beginning with the individual elements that are structured together to form a whole98
6731860937top-down processingthe organization of the information that uses prior knowledge to form the whole99
6731869100monocular cuesinformation perceived from one eye that play a crucial role in the ability to detect depth perception.100
6731882450binocular cuesimages that are perceived by both eyes and allow for accurate detection of depth perception, integrate the perception of information by both eyes.101
6731892455binocular (retinal) disparityis information that is processed by each eye and fused to form one image102
6731895945convergenceturning inward of each eye to focus on an up-close object103
6731900139shape constancyis the perception that the shape of and object remains the same despite a change in the angle from which it is viewed.104
6731909572color constancyis the perception that the color of an object remains the same despite a change in the lighting105
6731926959brightness constancyis the perception that the brightness of an object remains the same despite a change in the brightness of the background106
6731945386size constancyis the perception that the size of an object remains the same despite the fact that size changes based on distance.107
6731957625autokinetic effectis the perception of the movement of a stationary point of light in a totally darkened room.108
6731961884stroboscopic motionis the perception of movement due to the rapid presentation of changing stationary images109
6731965966phi phenomenonis apparent movement due to the sequential presentation of stationary images110
6731977982attentionthe ability to focus psychological resources on a task or object while ignoring other tasks or objects111
6731982037inattentional blindnessthe inability to see objects due to distraction112
6731988294multitaskingis the ability to focus your attention on two distinctly different tasks113
6732001491cocktail party effect (selective attention)the ability to focus on one task while simultaneously focusing on another114

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