Exercise 2. In a study of memory processes animals were presented with a one-trial avoidance task. As soon as they stepped across a line down the center of their cage they were shocked. Three groups of animals differed in the area in which they had electrode implants in their brains(neutral site, Area A, or Area B). Each group was further divided and given electrical stimulation either 50, 100, or 150 msec. after crossing the line and receiving foot shock. If the brain area is involved in memory, stimulation would be expected to interfere with consolidation and retard learning of the avoidance response. The dependent variable was the number of seconds it took the animal to cross the line on the second trial. STIMULATION AREA Neutral Site Area A Area B Delay of Stimulation 50 100 150 50 100 150 50 100 150 25 30 28 11 31 23 23 18 20 30 25 31 18 20 28 30 24 15 28 27 26 26 22 35 18 9 30 40 35 20 15 23 15 28 16 25 20 23 35 14 19 21 23 13 10

Exercise 2. In a study of memory processes animals were presented with a one-trial avoidance task. As soon as they stepped across a line down the center of their cage they were shocked. Three groups of animals differed in the area in which they had electrode implants in their brains(neutral site, Area A, or Area B). Each group was further divided and given electrical stimulation either 50, 100, or 150 msec. after crossing the line and receiving foot shock. If the brain area is involved in memory, stimulation would be expected to interfere with consolidation and retard learning of the avoidance response. The dependent variable was the number of seconds it took the animal to cross the line on the second trial. STIMULATION AREA Neutral Site Area A Area B Delay of Stimulation 50 100 150 50 100 150 50 100 150 25 30 28 11 31 23 23 18 20 30 25 31 18 20 28 30 24 15 28 27 26 26 22 35 18 9 30 40 35 20 15 23 15 28 16 25 20 23 35 14 19 21 23 13 10

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter2: Systems Of Linear Equations

Section2.4: Applications

Problem 1EQ: 1. Suppose that, in Example 2.27, 400 units of food A, 600 units of B, and 600 units of C are placed...

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