Sensation Part 2 PDF

SENSATION PART 2 SENSATION SENSATION SENSATION SENSATION Colour Coding in the Retina F 5.17 SENSATION Color Blindness Genetic disorder in which people are blind to green or red colors. This supports the Trichromatic theory...

SENSATION PART 2 SENSATION SENSATION SENSATION SENSATION Colour Coding in the Retina F 5.17 SENSATION Color Blindness Genetic disorder in which people are blind to green or red colors. This supports the Trichromatic theory. Ishihara Test 6 5-6  Defects in Colour Vision  Protanopia: Red cones filled with green photopigment SENSATION  Deuteranopia: Green cones filled with red photopigment  Tritanopia: Lack of blue cones  Opponent Colors Gaze at the middle of the flag for about 30 Seconds. When it disappears, stare at the dot and report what you see. 5 - 88  Audition  Sound  The ear and its functions SENSATION  Detection and localizing sounds  Age-related losses in hearing  Sound F 5.21 SENSATION Sound F 5.22 SENSATION  Frequency (Pitch) Frequency (pitch): The dimension of frequency determined by the wavelength of sound. Wavelength: The distance from the peak of one wave to the peak of the next. 12 5 - 12 Speech banana 13 5 - 13 Auditory System Anatomy F 5.23 SENSATION  Dr. Fred Hossler/ Visuals Unlimited 15 5 - 15 The Ear Pinna SENSATION 5 - 16 Middle Ear SENSATION 5 - 17 SENSATION SENSATION SENSATION SENSATION Auditory System Anatomy F 5.24 F 5.24 SENSATION SENSATION Detecting and Localizing Sounds F 5.27 SENSATION Detecting and Localizing Sounds F 5.28 SENSATION  Gustation  Receptors and the sensory pathway SENSATION  The five qualities of taste SENSATION  Receptors and the Sensory Pathway F 5.29 SENSATION Taste Traditionally, taste sensations consisted of sweet, salty, sour, and bitter tastes. Recently, receptors for a fifth taste have been discovered called “Umami”. Sweet Sour Salty Bitter Umami (savoury) 29 5 - 29 SENSATION  Olfaction  Anatomy of the olfactory system SENSATION  The dimensions of odour Anatomy of the Olfactory System F 5.30 SENSATION SENSATION The Somatosenses  The skin senses  The internal senses SENSATION  The vestibular senses The Skin Senses F 5.32 F 5.32 SENSATION  Touch The sense of touch is a mix of four distinct skin senses— pressure, warmth, cold, and pain. Bruce Ayers/ Stone/ Getty Images 36 5 - 36 Two-Point Discrimination F 5.33 SENSATION Pain Pain tells the body that something has gone wrong. Usually pain results from damage to the skin and other tissues. A rare disease exists in which the afflicted person feels no pain. AP Photo/ Stephen Morton 38 5 - 38 Biopsychosocial Influences 39 5 - 39 Gate-Control Theory Melzack and Wall (1965, 1983) proposed that our spinal cord contains neurological “gates” that either block pain or allow it to be sensed. Gary Comer/ PhototakeUSA.com 40 5 - 40 Pain Control Pain can be controlled by a number of therapies including, drugs, surgery, acupuncture, exercise, hypnosis, and even thought distraction. ©Hunter Hoffman, www.vrpain.com Todd Richards and Aric Vills, U.W. 41 5 - 41