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SENSATION & PERCEPTION: How the Brain Creates Reality
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SENSATION & PERCEPTION: How the Brain Creates Reality

Explore vision, hearing, touch, and perception—how sensory information becomes meaningful experience
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Created bySteven Kushner, PhD
Last updated 6/2026
English

What you'll learn

  • Differentiate between sensation and perception and explain how they work together to create experience
  • Describe how sensory receptors detect physical energy and convert it into neural signals through transduction
  • Explain how the visual system processes light, color, and depth information
  • Understand how the auditory system converts sound waves into hearing and pitch perception
  • Describe how the sense of taste works and how chemical senses detect stimuli
  • Analyze how depth perception allows us to judge distance and perceive a three-dimensional world

Course content

5 sections • 8 lectures • 1h 10m total length

  • Sensation vs Perception15:48
  • Quiz #1

Requirements

  • No prior background in psychology or neuroscience is required. This course is designed for beginners and explains all concepts clearly using examples and visuals. An interest in how the brain processes sensory information is helpful, but not required.

Description

How does the brain turn light waves into sight, sound waves into music, and physical pressure into touch?
And why can two people experience the same stimulus in completely different ways?

This course explores the psychology and neuroscience of sensation and perception, focusing on how the brain detects, organizes, and interprets sensory information to construct our experience of reality.

In this course, you’ll learn how sensory receptors respond to physical energy from the environment and how that energy is converted into neural signals through transduction. You’ll then examine how the brain organizes and interprets these signals to produce conscious perception.

You’ll explore how the brain processes:

  • Vision (light, color, depth, and motion)

  • Hearing (sound waves and pitch perception)

  • Touch (pressure, temperature, and pain)

  • Taste (chemical senses)

The course also examines key perception concepts, including:

  • Bottom-up and top-down processing

  • Depth perception

Throughout the course, biological mechanisms are connected to real-world experiences, helping you understand why perception is not a perfect copy of reality—but an active construction shaped by context, expectations, and prior knowledge.

This course is designed to be clear, engaging, and accessible, making complex scientific ideas easy to understand without oversimplifying the content. It is ideal for psychology students, educators, and curious learners who want to better understand how the brain makes sense of the world.

By the end of the course, you’ll have a strong foundation in sensation and perception and a deeper appreciation for how the brain transforms sensory input into the rich experiences of everyday life.

Who this course is for:

  • Students taking introductory psychology or neuroscience courses High school or college learners studying sensation and perception Educators looking for clear explanations and teaching-ready examples Lifelong learners curious about how the brain creates sensory experience Anyone interested in understanding how sight, sound, and taste are processed by the brain

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