Prelim 1 Study Answers - 1. One of the first two, not both...

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1. One of the first two, not both A. Define environmental determinism. a. Environmental Determinism: The physical environment can directly effect what happens to us whether it is our health or behavior B. Give two examples of research from lecture/reading demonstrating environmental determinism and explain why/how they show environmental determinism. You cannot use the example below. a. Cornell Kitchen Triangle : is an example of how the design of a specific environment has a direct effect on productivity. Through research with farmers’ wives, Cornell found that an isosceles triangle with a perimeter of 21 feet between the stove, sink and refrigerator with the longest distance between the refrigerator and sink is the most efficient design. ( Deterministic - does not change due to our experiences or culture) b. Cat - the levels of visual stimulation affect kittens’ neural development. If a kitten is raised in total darkness for the first 6-8 weeks of life (the visual critical period), it will be blind. If a kitten is raised with only vertical stimulation for the first 6-8 weeks, it will be blind to horizontal stimulus. c. Rats - plain cage one rat, plain cage multiple rats, multiple levels w/ things to play with= more cell growth- and the cells themselves were more enriched ( deterministic, symbolism is not relevant ) C. This table depicts the percentage of adult birds that can see the color blue as a function of the color of the environment they were raised in at different ages (e.g. 10% of adult birds can see the color blue if between the ages of 3-10 weeks they had been reared in an environment of red light only) Describe the relationship between these data and the concepts of environmental determinism, plasticity, and critical period. (Be very specific, which combinations of data show each of these concepts and explain why.) a. Environmental determinism - the physical environment has a direct effect on human health and behavior (this is demonstrated through the fact that if the birds are raised in a certain environment during a particular period in their development there is a direct affect on their neural development and behavior) b. Plasticity - the lifelong ability of the brain to reorganize neutral pathways based on new experiences. We acquire new knowledge and skills through instruction or experience. (the study shows that if birds are raised in a red light environment until age 3 weeks they can still adapt normally. Their brains are plastic enough that they can adapt to seeing blue light after 3 weeks, despite the red environment for most of their lives) c. Critical period - the time in the early stages of an life when organisms have a heightened sensitivity to environmental stimuli, and develops in particular ways due to experiences at this time. If the organism does not receive the appropriate stimulus during this time the effects may be permanent (this study shows that the critical period for birds is clearly 3- 10 weeks) D. Change the percentages in a new table to show
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This test prep was uploaded on 04/18/2008 for the course DEA 1500 taught by Professor Garyw.evans during the Spring '08 term at Cornell University (Engineering School).

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Prelim 1 Study Answers - 1. One of the first two, not both...

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