Ch 56: Sensory Processes & Theories

About This Chapter

Watch our videos and review the theories of sensory processing underlying sensation and perception. Study the process of sensory coding and see examples of sensory adaptation.

Sensory Processes and Theories - Chapter Summary

In this chapter, our instructors introduce you to the important theories of sensory processing that support our understanding of sensation and perception. The classic theory of Gustav Fechner is described. You will be introduced to Signal Detection Theory, which is important both for sensory experiments and decision making.

You'll learn about the concept of sensory adaptation, how our perception of an external stimulus changes upon repeated exposure. As you progress through the chapter you will study receptor processes, sensory mechanisms and sensory coding. After completing this chapter, you should be able to:

  • Discuss the Weber-Fechner law
  • Define Signal Detection Theory and how it is used
  • Explain sensory adaptation and why it occurs
  • Examine the process used to move from sensation to perception
  • Determine how messages are transmitted from receptor to brain

You can use our brief, engaging video lessons to learn all about these topics. We also give you self-assessment quizzes along with each video lesson, and lesson transcripts to review for greater detail. In the transcripts, the important points and key terms are highlighted. To revisit a particular point in a video without re-watching the whole thing, you can use our jump feature in the timeline, which takes you straight to the part you wish to review. These videos are led by instructors who are experts in their field.

6 Lessons in Chapter 56: Sensory Processes & Theories
Test your knowledge with a 30-question chapter practice test
Intro to Sensation and Perception

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.

Gustav Fechner: Psychology Theory & Explanation

2. Gustav Fechner: Psychology Theory & Explanation

In this lesson, you will learn about Gustav Fechner and the influence he had on the field of psychology. Specifically, you will learn how Fechner's background in religion and science helped him forge the way to making psychology a quantifiable science.

Signal Detection Theory: Definition & Examples

3. Signal Detection Theory: Definition & Examples

Do you ever hear things that aren't really there, or not hear something that's nearby? You're not going crazy, this is common. In this lesson we are going to look at signal detection theory and explore how your mind detects or misses various signals.

Sensory Adaptation: Definition & Examples

4. Sensory Adaptation: Definition & Examples

If you're like most people, you have probably experienced or observed sensory adaptation at some point. Learn how this mechanism works in everyday life and test your knowledge with a short quiz.

Receptor Processes & Sensory Mechanisms

5. Receptor Processes & Sensory Mechanisms

How do we receive and interpret information from the world around us? In this lesson, we'll look at an overview of sensation and perception, including the differences between the two and the basic process of moving from one to the other.

Sensory Coding: Getting Messages from Receptors to Your Brain

6. Sensory Coding: Getting Messages from Receptors to Your Brain

When you stub your toe, you feel pain. But that's not all to the story: information about what your toe is feeling has to travel up to your brain. In this lesson, we'll look at the process of sending information from sensory receptors to the brain.

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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