About This Chapter
Sensation & Perception in Biology - Chapter Summary
The lessons in this chapter provide an overview of sensation and perception in biology. You will review proprioception and structures of the uveal tract. You will also gain an understanding of how your brain and eyes work together to turn light into images. After completing the chapter, you should be prepared to:
- Discuss how the mind differentiates between sensations
- Explain how our brains make 3-D images
- Describe how the senses taste, touch, and smell work
- List parts and functions of the eye
- Explain how structures of the eyeball help you see
- Discuss how your ears help you keep your balance
- Recall details about the auditory nerve
- Describe how sound waves interact with the ear
Each lesson includes a brief quiz to ascertain how much of the content you can recall. Video timelines let you review only the topics you need to review. You can make the most of the chapter by printing the quiz in worksheet form to study offline.
1. Intro to Sensation and Perception
What is the difference between sensation and perception, and how do they work? You'll get to see how the mind handles and differentiates between multiple sensations in this introduction.
2. What is Depth Perception? - Definition, Cues & Examples
How do our brains make 3-D images out of 2-D inputs? In this lesson, you'll explore various visual cues that require either one eye or both eyes. Prepare to look at depth perception in a new way.
3. Taste, Touch & Smell: Proprioception & the Somatosensory System
How do taste, touch and smell work? Also, what is proprioception? Throughout this lesson, you'll get a detailed description on each of these remarkable senses.
4. Parts of the Eye and their Functions
Do you know the parts of the eye? If not, this lesson will help you to identify the parts of the eye and understand their specific functions. After learning about the eye, you will be able to test your knowledge with a quiz.
5. Detailed Structures of the Eyeball
Your eyeballs are a lot like fluid-filled balloons wearing three coats or tunics. Structures within these tunics allow you to see colors, focus on objects, and see in dim light. Learn about the structures of the eyeballs and how they help you see.
6. Structures of the Uveal Tract
Grapes, blue colors, brown colors, green colors and black colors are all a strange but true part of this lesson on a particular part of your eye, called the uveal tract. What is it? Take a look!
7. How Does Vision Work?
How do your eyes and brain work together to turn light into images? You'll learn about the working components of the eye and take a look at two theories of color perception.
8. Function & Structure of the Ears
Watch along as we follow a sound wave into the ear and learn about the structures it encounters. Also, did you know that your ears do more than hear? Learn about the role your ears play in keeping your balance.
9. The Ear: Hair Cells, Organ of Corti & the Auditory Nerve
In this lesson, you'll learn the most important things about cranial nerve VIII, the auditory nerve and the Organ of Corti. In addition, you'll realize that even though you may not like it, your ears are quite hairy thanks to hair cells.
10. Mechanics of Hearing & How the Brain Processes Sound
How do our ears transform sound into signals that our brains can process? In this lesson, you'll cover properties of sound waves and how they interact with key parts of the ear.
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