Ch 4: AP Psychology: Biology in Psychology

About This Chapter

Watch biology in psychology video lessons and learn about neurons, hormones, genetics, and more. These lessons are just a portion of our AP Psychology course.

Biology in Psychology - Chapter Summary and Learning Objectives

Although we tend to think of our minds as separate from our bodies, there are many biological functions that affect our psyches in different ways. In this chapter, you'll learn about the brain's structure and how it receives chemical and electrical signals via neurons and neurotransmitters. You'll also learn about our complex system of glands, which secrete hormones that affect our mood and temperament. The nature versus nurture debate is one of the biggest questions scientists have asked, and we'll look at how genetics play a role in the formation of personality and behavior. This chapter is designed to teach you:

  • The physical structures that form our nervous and endocrine systems
  • How genetics can affect human behavior
  • The types of scans researchers use in studying physiological connections
  • The unique functions and abilities of brain tissue

Physiological TechniquesLearn about techniques like CAT scans, MRIs, fMRIs, and PET scans and how these help researchers find links between the brain and behavior.
Intro to Biological PsychologyExplore the biological processes that can affect our mental states, moods, and behaviors.
NeuronsUnderstand the structure and function of nerve cells in your brain, muscles, and glands.
NeurotransmittersLearn how the chemical signals fired by neurons tell your body and mind what to do.
Parts of the BrainExplore the various parts of our brain and learn what each part does.
NeuroplasticityUnderstand the brain's ability to change and adapt to damage and why this is a useful function.
Endocrine SystemLearn about the body's glands and hormones and how these affect body functions and behavior.
Genetics and BehaviorExplore the role of genetics in human behavior and what may be inherited versus what is environmental.

8 Lessons in Chapter 4: AP Psychology: Biology in Psychology
Test your knowledge with a 30-question chapter practice test
Intro to Biological Psychology

1. Intro to Biological Psychology

What are the biological factors that affect our behavior? In this lesson, you'll take a look at biological psychology, which looks at the interplay between biological processes and mental states.

Techniques to Study the Brain and Behavior

2. Techniques to Study the Brain and Behavior

Why do you behave the way you do? Human behavior begins in the brain. To study the brain, psychologists use a variety of tools, like EEG, PET and CAT scans, MRI, DTI, and studying pathology in individuals.

What is a Neuron? - Definition, Parts & Function

3. What is a Neuron? - Definition, Parts & Function

What are the parts of a neuron? You'll watch Neuron Garciaparra work up a sweat as he throws baseballs to demonstrate the structures and functions of the billions of neurons that reside in your body.

What is a Neurotransmitter? - Definition, Types, Function & Examples

4. What is a Neurotransmitter? - Definition, Types, Function & Examples

How do our bodies communicate with our brains and vice versa? In this video, you'll see how neurons and neurotransmitters can be likened to billions of tiny baseball players engaged in a non-stop game of catch.

Parts of the Brain

5. Parts of the Brain

Is there a way to easily remember the many parts of the brain? Don't be afraid of all these complex terms; this lesson outlines some easy and fun phrases to help you memorize the brain's anatomy. Let's take a look.

What is Neuroplasticity? - Definition & Examples

6. What is Neuroplasticity? - Definition & Examples

Is your brain preprogrammed and unchangeable or adaptive and malleable? As you watch this video, you'll explore how the brain, a more resilient and resourceful machine than any computer, responds to damage and new experiences.

Endocrine System Function & Hormone Regulation

7. Endocrine System Function & Hormone Regulation

Our hormones play a big part in how we feel and behave throughout the day. Hormones also affect important bodily functions. What other functions do our hormones regulate? Find out in this lesson on the endocrine system!

Biological Influences on Human Behavior: Genetics & Environment

8. Biological Influences on Human Behavior: Genetics & Environment

Humans are a product of both our genetic makeup and our environmental surroundings. Does one influence our behavior more than the other? It can be difficult to tell, but there are ways that scientists can better understand why we do the things we do.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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