Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Researchers investigating the effect of exercise on cognitive functions conducted a con-
trolled experiment in which rats were randomly assigned to sedentary (Sed), low-intensity
exercise (Low-Ex), or high-intensity exercise (High-Ex) groups. During this exercise regi-
ment, rats were also trained to navigate a specialized water maze, and their escape la
tency, the time it took them to escape the maze, was recorded. The results of this experi-
ment are depicted in the figure below.
escape latency (sec)
100
80
60-
40-
20
0-
day 10
day 11
Escape latencies during the training phase
Based on the data above,
day 12
(b) Identify the control group in the experiment.
sed
-- low-ex
-- high-ex
(a) Identify the dependent and independent variables in the experiment.
day 13
Respond to each part in 3 to 4 complete sentences.
(c) Compare the effects of low-intensity and high-intensity exercise on the rats' cognitive func-
tion during the training period.
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Transcribed Image Text:Researchers investigating the effect of exercise on cognitive functions conducted a con- trolled experiment in which rats were randomly assigned to sedentary (Sed), low-intensity exercise (Low-Ex), or high-intensity exercise (High-Ex) groups. During this exercise regi- ment, rats were also trained to navigate a specialized water maze, and their escape la tency, the time it took them to escape the maze, was recorded. The results of this experi- ment are depicted in the figure below. escape latency (sec) 100 80 60- 40- 20 0- day 10 day 11 Escape latencies during the training phase Based on the data above, day 12 (b) Identify the control group in the experiment. sed -- low-ex -- high-ex (a) Identify the dependent and independent variables in the experiment. day 13 Respond to each part in 3 to 4 complete sentences. (c) Compare the effects of low-intensity and high-intensity exercise on the rats' cognitive func- tion during the training period.
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