Virtual Lab Essay

310 Words2 Pages
Virtual Lab #6: Chapter 14 Note that there are no results to print for this lab; however, your answers should be in enough detail to show that you have completed the activities. For the videos, if you see a black screen with a red X over it, you should try a different computer, as yours may lack the appropriate plug-in. #2. Surfing the Web with Touch This ABC News feature discusses how a vibrating mouse can enhance perception of textures pictured on a computer screen. RESULTS & DISCUSSION 1. How does the mouse shown in this video clip provide tactile information to the user? 2. What are two potential applications providing tactile information to computer users according to this news report? 3. Based on what you learned in class, how does vibration allow us to perceive the texture of objects? What receptors are involved in this? #3. Gate Control System This lab simulates the gate control theory of pain perception. Begin by clicking on the Nociceptor (pain receptor) cell, and observe what happens at the level of the T-cell. Repeat for Vibrate and Central Control. Finally, click on Multiple Input and activate all three of the structures, one after another, and watch what happens to the T-cell output. RESULTS & DISCUSSION – For results, attach a screenshot or a diagram of the Gate Control model of pain. 1. Report the T-cell activity produced when there is input from each system below. Nociceptor: 100 Vibrate skin: -30 Central control: -50 2. Report the T-cell activity produced when there is input as indicated below. When is pain perception reduced the most? Nociceptor and vibrate skin: Nociceptor, vibrate skin, and central control: 3. Use this demonstration and what you learned in class to answer the following: Why does rubbing the skin near an injury sometimes

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