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Psychology Sensation Stations Name: ___________________________________________ Period: ___________ Directions: Working with a partner, visit each station and follow the directions for that station. You may visit the stations in any order. Each partner must do all tasks and complete their own sheet. Station #1 — SMELL 1. Pick up the bag and smell what is inside. 2. Place the bag back next to the appropriate sign. 3. Write down what you smelled. 4. Repeat this process for each smell. Smell #1 Smell #2 Smell #3 Smell #4 Station #2 — TOUCH 1 1. Leave the bag on the table and place one hand inside. 2. Feel the items inside the bag. 3. Write down what you think you touched. 4. Repeat this process for each bag. Touch #1 Touch #2 Touch #3 Touch #4 Station #3 — COLOR VISION TEST 1. Using the online Color Vision Test, check your color vision. 2. Did you have difficulty with any of the test plates? If so, which ones? What is the cause of color deficiency (what structure in the eye is not functioning properly)? 1 Station #4 — TASTE 1. Pour a small amount of water from jug A into one cup and a small amount of water from jug B into a different cup. 2. Taste each cup. Which jug (if either) contains sugar? What is “absolute threshold”? Explain how this station may help illustrate this concept. Station #5 — DEPTH PERCEPTION 1. Choose who will be Partner A and Partner B. Get one straw and one toothpick for each partner. 2. Partner A: Hold the straw parallel to the ground about two feet in front of Partner B’s face. Direct Partner B to place the toothpick in the straw [observe & record results]. 3. Partner A: Direct Partner B to cover one eye and place the toothpick in the straw [observe & record results]. Repeat with the other eye covered [observe & record results]. Both eyes open Left eye covered Right eye covered How is depth perceived differently using one eye as opposed to two eyes? Does it matter which eye is closed? Station #6 — SMELL-TASTE 1. Choose who will be Partner A and Partner B. 2. Partner B: Have Partner A close their eyes. Once Partner A’s eyes are closed, hold the onion near Partner A’s nose and give them a cookie to eat. Ask Partner A to describe the food’s taste. 3. Wait 5-10 minutes and repeat without the onion. 4. When it is Partner B’s turn to go, Partner A may decide whether to use the onion the first or second time. Taste with onion smell Taste without onion smell Does this experiment prove or disprove the theory that much of what is referred to as taste is actually produced by the sense of smell? Explain. 2 Station #7 — TOUCH 2 1. Choose who will be Partner A and Partner B. 2. Partner B: Have Partner A close their eyes. Using the ruler and another paperclip, touch your partner on the palm so that the distance between the paperclips is 10 cm. Ask Partner A how many paperclips are touching them. Remove the paperclips from Partner A’s skin, reduce the distance between the paperclips by 2-3 cm, and apply to the same area of skin. Repeat until Partner A can only feel one paperclip. Find the maximum distance at which Partner A can only feel one paperclip. 3. Repeat on Partner A’s calf. Palm: Distance for feeling 1 point of Calf: Distance for feeling 1 point of pressure pressure On which part of your body (palm or calf) are the skin receptors farther apart? Explain your reasoning. Station #8 — GESTALT PERCEPTION 1. View the Seurat painting from a distance and then up close enough to see the “dots” of paint. Which of the Gestalt principles (proximity, continuity, similarity, simplicity, or closure) is illustrated by the Seurat painting? 3
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