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LEBO Myers Psychology for AP- Unit 4

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162962150SensationProcess by which our sensory receptors and nervous system receive stimulus energy.
162962151PerceptionProcess of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events.
162962152Bottom-Up ProcessingAnalysis begins with sensory receptors and works up to brain's integration of sensory information.
162962153Top-Down ProcessingInformation processing guided by higher mental processes, or drawing perceptions based on our experiences.
162962154Absolute ThresholdMinimum stimulation needed to detect a particular stimulus.
162962155Signal Detection TheroyDetection of a stimulus depends on the intensity of the stimulus, and the physical and psychological state of the individual.
162962156Subliminal PerceptionBelow one's absolute threshold for conscious awareness.
162962157Difference ThresholdMinimum difference a person can detect between any two stimuli 50% of the time.
162962158Weber's LawTo be perceived as different, two stimuli must differ by a constant proportion (rather than a constant amount).
162962159Sensory AdaptationDiminished sensitivity as a result of constant stimulation.
162962160TransductionSensory systems convert stimulus energy into neural messages.
162962161RetinaLight sensitive inner surface of eye.
162962162RodsVisual receptor cells located on edge of retina, which detect black, white, gray and movement.
162962163ConesVisual receptor cells located in center of retina that detect color and sharp details.
162962164Blind SpotA point at which optic nerve leaves the eye.
162962165FoveaCentral focal point in retina, where eye's cones cluster.
162962166Young-Helmholtz Trichromatic TheoryThe retina contains receptor cells that are "tuned" to detect red, green or blue.
162962167Opponent Process TheoryColor is processed in opponent pairs (red-green, yellow-blue, and black-white).
162962168Conduction Hearing LossDamage to the mechanical system that sends sound waves to the cochlea (i.e. - a punctured eardrum).
162962169Sensorineural Hearing LossDamage to the cochlea's hair cell receptors or their nerves (i.e. - aging, heredity, prolonged exposure to loud noise).
162962170Sensory InteractionOne sense may influence another.
162962171Gate-Control TheoryThe spinal cord contains a neurological "gate" that blocks pain signals or allows them to pass on to the brain.
162962172Vestibular SenseThe sense of body orientation and balance.
162962173CochleaA coiled, bony, fluid-filled tube in the inner ear through which sound waves trigger neural impulses.
162962174Selective AttentionFocusing conscious awareness on a particular stimulus, while excluding others.
162962175Visual CliffThe laboratory device for testing depth perception in infants and young animals.
162962176Binocular CuesDepth cues that require the use of both eyes.
162962177Monocular CuesDepth cues that require the use of only one eye.
162962178Retinal DisparityThe difference between the images you see with the retinas in your left and right eyes.
162962179Phi PhenomenonCreating the illusion of movement when fixed lights are turned on and off.
162962180Perceptual ConstancyPerceiving the shape, size, and lightness of an object as unchanging, even as retinal image of object changes.
162962181Perceptual SetA mental predisposition to perceive one thing and not another.
162962182Extrasensory Perception (ESP)The claim that perception can occur apart from sensory input.
162962183ParapsychologyThe study of paranormal phenomenon.
162962184Optic Nervethe nerve that carries neural impulses from the eye to the brain
162962185Feature Detectorsnerve cells in the brain that respond to specific features of the stimulus, such as shape, angle, or movement
162962186Middle Earthe chamber between the eardrum and cochlea containing three tiny bones (hammer, anvil, and stirrup) that concentrate the vibrations of the eardrum on the cochlea's oval window
162962187Basilar MembraneA structure that runs the length of the cochlea in the inner ear and holds the auditory receptors, called hair cells.
162962188Inner Earthe innermost part of the ear, containing the cochlea, semicircular canals, and vestibular sacs
162962189Accommodationthe process by which the eye's lens changes shape to focus near or far objects on the retina, the process by which the eye's lens changes shape to focus near or far objects on the retina. (Myers Psychology 8e p. 205)/ in the theories of Jean Piaget: the modification of internal representations in order to accommodate a changing knowledge of reality
162962190Kinesthesisthe system for sensing the position and movement of individual body parts
162962191Visual Capturethe tendency for vision to dominate the other senses
162962192Gestaltan organized whole. Gestalt psychologists emphasized our tendency to integrate pieces of information into meaningful wholes
162962193Depth Perceptionthe ability to see objects in three dimensions although the images that strike the retina are two-dimensional; allows us to judge distance

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