Imagine yourself in a dark classroom reading PowerPoint slides. If an audience member were to check the internet using her cell phone and causing her screen to light up, chances are that many people would notice the change in illumination in the classroom. However, if the same thing happened in a brightly lit classroom during a discussion, very few people would notice. The cell phone brightness does not change, but its ability to be detected as a change in illumination varies dramatically between the two contexts This is an example of 12 \( \begin{array}{l}\text { the principle of transduction } \\ \text { the law of thermoception } \\ \text { Merkel's theory } \\ \text { Weber's law }\end{array} \)

This fascinating phenomenon speaks to the concept that our perception of stimuli is influenced by the surrounding context. In a dimly lit classroom, the introduction of a bright screen creates a stark contrast that stands out, while in a brightly lit environment, the same screen blends in with the overall brightness. This demonstrates how our senses adapt and respond to changes relative to their environment. In practical terms, this principle is crucial for understanding how we can improve learning and engagement during presentations. For instance, maintaining lower lighting can help emphasize visual aids, while too much light may cause distractions. It teaches us to create environments conducive to the levels of attention we aim to capture.