A friend sent this article to me this morning, challenging the god Microsoft with the title, “Research points the finger at PowerPoint.” The article goes on, “If you have ever wondered why your eyes start glazing over as you read those dot points on the screen, as the same words are being spoken, take heart in knowing there is a scientific explanation.”
The root finding of the study is this: “It is more difficult to process information if it is coming at you in the written and spoken form at the same time.” The mind simply goes autopilot and forgets everything you just heard/saw.
The solution? “It is effective to speak to a diagram, because it presents information in a different form.”
The moral of the story: Salespeople and lecturers; don’t use PowerPoint as your personal teleprompt.