from Section 5 - Technologies Old and New
Published online by Cambridge University Press: 24 November 2022
Psychiatrists are often called on to do presentations, of which PowerPoint slides are usually an expected component. Even more frequent is the experience of ‘death by PowerPoint’: sitting in someone else’s presentation and simultaneously experiencing both intense boredom and cognitive overload. This phenomenon has been cited for more than 20 years: ‘poor documents are so common that deciphering bad writing and bad visual design have become part of the coping skills needed to navigate in the so-called information age’ (Schriver 1997, p. xxiii). Mayer’s (2009) text is seminal in describing how this arises: there are dual channels for processing (the visual and the auditory), which both have limited capacity. The death by PowerPoint experience happens when one channel is overloaded and one channel is ignored: typically, a presenter reading text from a screen (cognitive overload – the audience cannot read and listen simultaneously) and boredom (there is no visual stimulation).
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