Essentials of Sensory Science Specialization

Humans are amazing sensors! This course will help you understand our sensing capabilities including taste, olfaction, tactile senses, vision, and audition. The course will explain at a high-level the anatomy, physiology, and chemistry of the senses and give you an appreciation of how senses are transmitted to, and experienced by, the brain. You’ll learn by experience to assess cases such as dysfunctions in olfaction or tactile temperature adaptation. Optional podcast conversations with experts in the field are included each week to provide additional insight on our senses and sensory research.

The brain is the most sophisticated sensory interpreter that we know of. Our brain is like a very powerful computer, but no engineered computer exists that can mimic our human sensory capabilities. This course will explore sensory science by examining how the senses are connected to the brain and how the brain makes meaning of the signals it receives. Various types of testing, scales, and measurements are described that allow scientists to quantify senses and the brain’s experience of senses. Through this course, you will learn to employ scientific approaches such as discrimination testing and Thurstonian Modeling to measure the senses.

This course will introduce the sensory evaluation laboratory and will teach you best practices for testing and documentation. We'll explore how various factors, especially the testing environment, can influence sensory experiments. Our main focus will be on two specific sensory tests: duo-trio discrimination and 3-product consumer testing. Through case studies, we’ll examine how these tests can address product challenges. For both test types, we’ll dive into how to develop an appropriate hypothesis, select products, execute a sensory test, decode collected data, and interpret the test results. Additionally, you’ll learn how to identify and select core and opportunity target groups of consumers. Each module in this course builds towards your final project where you will design a sensory test to conduct your own research experiment.