In this basic psychology lesson, learn about positive and negative correlations, how to interpret data, and understand the relationships between variables.

In this lesson, review each part of the scientific method, and learn how to create and test a hypothesis for research, publish results, and form theories.

In this introductory lesson, psychology students go back in time, reviewing how various civilizations across the ages dealt with abnormal behavior.

What are the differences among mental illness, insanity, and competency? In this psychology lesson, learn how criminals are judged based on psychological state.

This psychology lesson offers a quick tour of the more important parts of the brain. Learn to identify the parts of the picture for this lesson!

In this psychology lesson, learn how the two halves of the brain work together—and separately—and the pros and cons of being a lefty or a righty.

Learn about the several interconnected nervous systems in your body. Find out how they are arranged, which does what, and how they affect one another.

Discover how your brain sends signals to all parts of your body, and vice versa. It involves chemicals, ions, insulation, and maybe even a party!

Learn about the unsung heroes of the nervous system: glia! Glial cells can help or hinder, heal or hurt, but they don't get any respect—except here.

The dendrite's connected to the soma! The soma's connected to the axon! The axon's connected to—what? Learn about the structure of the neuron in this lesson!