Bryce volunteered to participate in a taste test for a new soup. The testers want to know when the participants notice a reduction in salt in the soup. After Bryce tastes several bowls of soup he notices that the last bowl has less salt than the others. Bryce's detection of the change in salt content is an example of detecting the:

Difference threshold can be described or explained as the minimum amount that something needs to change or difference between two stimuli which can be consistently and as well as accurately detected exactly at the middle of the trial, i.e at 50% of the trial.

Difference threshold help us to understand why people is able to sense or detect and not able to sense the taste or progress of something.

In this case, Bryce was able to sense that the last soup contain less salt because there has been a difference threshold, where he was unable to sense the level of the taste of the salt again.