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19 Cards in this Set
- Front
- Back
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Define Sensation
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Process by which we recieve, transform and process stimuli from the outside world to create sensory ecperiences of vision, touch, hearing, taste, smell, and so on.
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Define Absolute Threshold
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Smallest amount of a given stimulus a person can sense
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Define Difference Threshold
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Minimal difference in the magnitude of energy needed for people to detect a difference between 2 stimuli
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Define Signal Detection and factors that contibute to it
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Intensity of stimulus, level of background stimulation, biological and psychological characteristics of person
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Define Sensory Adaptation
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Process by which sensory receptors adapt to constand stimuli by becoming less sensitive to them
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Define Iris
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Regulates the size of the pupil to adjust to changes in illumination
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Define Pupil
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Allows light to enter the eye
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Define Lens
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Focses light rays on the retina
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Define Retina
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Light sensitive layer of the inner srgace of the eye that contains photoreceptors
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Define Rods
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Sensitive to light
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Define cones
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Sensitive to color
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Define Ganglion
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Transmit neural impulses in responce to light stimulation. Axons that make up optic nerve.
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Define Optic Nerve
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Carries neural impulses generated by light stimulation from eye to brain
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Define Amplitde
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Volume
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Define Frequency
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Low or High pitch
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Define Eardrum
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Sheet of connective tissue separating outer ear from middle ear that vibrates. Transmits sound waves to middle ear.
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Define Biofeedback
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Method of learning to control certain bodily responses by using information trasmitted by physiological monitoring
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Define EMG Feedback
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From of BFT. Involves feedback about changes in level of muscle tension in forehead or body
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Define Thermal Feedback
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Form of BFT. Feedback about changes in temperature and blood flow. Used for migraines.
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