(Part 1) Motor Cortex:

Locate and read a recent, full-text article from the Capella Library on the motor cortex, then:

Describe the location of the motor cortex within the brain and outline its organization.

Describe the major motor pathways and the movements they control.

Integrate information from the paper you located in your research study activity.

Cite and reference your article using APA formatting.

(Part 2) Sleep Disorders:

Locate and read a recent, full-text article from the Capella Library about sleep disorders (such as narcolepsy or sleep deprivation), then answer:

Why is sleep important to human functioning?

What was the central finding of the article?

How can you use the results of this article within your area of specialization? Be specific in your examples.

Cite and reference your article using APA formatting.

(Part 3) Correlation versus Causation

If “correlation does not imply causation,” what does it imply? Are there ever any circumstances when a correlation can be interpreted as evidence for a causal connection between two variables? If yes, what circumstances?

(Part 4) Interpreting Correlations

A meta-analysis (Anderson & Bushman, 2001) reported that the average correlation between time spent playing video games ( X) and engaging in aggressive behavior ( Y) in a set of 21 well-controlled experimental studies was 19. This correlation was judged to be statistically significant. In your own words, what can you say about the nature of the relationship?


Anderson, C. A., & Bushman, B. J. (2001). Effects of violent video games on aggressive behavior, aggressive cognition, aggressive affect, physiological arousal, and prosocial behavior: A meta-analytic review of the scientific literature. Psychological Science, 12(5), 353–359.

(Part 1 & 2) Readings

Complete the following:

In your Physiology of Behavior text, read:

Chapter 8, “Control of Movement,” pages 255–287.

Chapter 9, “Sleep and Biological Rhythms,” pages 288–322.

Read Brain Facts: A Primer on the Brain and Nervous System, pages 20–24.

Optional Internet Resources

—If you choose, you may explore the following:

NIH: Sleep IQ – Quiz.

International Association for the Study of Dreams: Dreaming Journal.

(Part 3 & 4) Readings

Use your Warner text to complete the following:

Read Chapter 7, “Bivariate Pearson Correlation.” This chapter addresses the following topics:

Assumptions of Pearson’s r.

Preliminary Data Screening for Pearson’s r.

Statistical Significance Tests for Pearson’s r.

Factors Influencing the Magnitude and Sign of Pearson’s r.

Effect-Size Indexes.

Interpretation of Pearson’s r Values.

Read Chapter 8, “Alternative Correlation Coefficients.” This chapter addresses the following topics:

Correlations for Rank or Ordinal Scores.

Correlations for True Dichotomies.

Correlations for Artificial Dichotomies.

Chi-Square Test of Association.

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