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Psych Exam 2 questions - Psych Exam 2(Chapters 5-9 1 What...

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Psych Exam 2 (Chapters 5-9) 1. What is the chamber between the ear drum and the cochlea containing 3 tiny ear bones that concentrates the vibrations of the ear drum onto the cochlea’s oval window? 2. What are the three bones in the ear? 3. What is the transparent structure behind the pupil that changes shape to help focus an image on the retina? 4. What is the system for sensing the position and movement of individual body parts? 5. What is the ring of muscle that makes up the colored part of the eye around the pupil and controls the size of the pupil opening? 6. What is the amount of energy in a light or sound wave, which we perceive as brightness or loudness, as determined by the wave’s amplitude? 7. What is the part of the ear that contains the cochlea, the semicircular canals, and the vestibular sacs? 8. What is the dimension of color that is determined by the wavelength of light? 9. Name this theory: The spinal cord has a neurological “gate” that blocks pain signals or allows them to pass on to the brain. The “gate” is opened by the activity of pain signals traveling up small nerve fibers and is closed by activity in larger fibers or by information coming from the brain. 10. Name this theory: (In hearing) The rate of nerve impulses traveling up the auditory nerve matches the frequency of its tone, allowing us to sense its pitch. 11. What is the number of complete wavelengths that pass a point in a given time? 12. What is the central focal point on the retina at which the eye’s cones cluster? 13. What are nerve cells in the brain that respond to specific characteristics of the stimulus- such as shape, angle, or motion? 14. What is a condition in which far away objects are seen more clearly than near objects because the near objects are focused BEHIND the retina? 15. What is the minimum difference needed between two stimuli required for detection 50% of the time? (3 names) 16. What are retinal receptor cells that are concentrated near the center of the retina and that function in daylight or in well lit conditions? These detect fine detail and give rise to color sensations… 17. What is hearing loss caused by damage to the mechanical system that conducts sound waves to the cochlea?
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18. What is perceiving familiar objects as having consistent color, even if changing illumination alters the wavelengths reflected by the object? 19. What is a device for converting sounds into electrical signals and stimulating the auditory nerve through electrodes threaded into the cochlea? 20. What is the coiled, boney, fluid-filled tube in the inner ear through which sound waves trigger nerve impulses? 21. What is the method of analysis which starts with the sensory receptors and works its way up to the brain’s integration of sensory integration?
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