I have recently completed a research study on what makes PowerPoint presentations memorable. 1,540 people participated in the study and after 48 hours, they remembered an average of 4 slides out of 20 slides they viewed.
This finding is perhaps expected: unless there is some repetition and enforcement, memory fades quickly. There were however a few observations that I found surprising and almost counter-intuitive to what we've been taught as communicators. So here are the surprises, along with some principles to consider before you design your next PowerPoint presentation.
During the study, participants were assigned to various manipulations of a 20-slide deck. Some people viewed text-only slides, others viewed slides where the text appeared near neutral visuals (e.g., if the slide mentioned the concept of time, the text was accompanied by the picture of a clock).
At a conservative alpha level (significance level), neutral pictures did not lead to better memory of the content. However, participants did remember four slides, even though they were purely text-based or the neutral visuals did not help. What does this mean for creating PowerPoint presentations? Text is still a potent design element. Even though it has been abused by many, text can be used in creative ways to break away from too much visual intensity. Many content designers currently have access to lots of stock photography databases, and we may soon face the other extreme, where death by PowerPoint arises from too much visual stimulation. If you’ve attended a presentation where everything looks like a photo album, you know what I mean.
In any slide sequence, the brain needs a break. One of the ways to provide it is by using text. The example below shows how this would play out in a visually intense presentation. Looking at this business example, can you tell how the text-intensive slides provide a visual pause, and may impact recall by refreshing attention and by zooming into one important point?
Figure 1: Text can still be a viable design element, if it is not abused
In order for text to be a consistently memorable element in presentations, it must contain words that depict visual imagery. The more "visual" the text, the more memorable the slide. Notice the difference between saying "We took a trip to the mountains" versus "We visited the snow-capped peaks of the Sierra Nevada mountains, where we stayed at a log cabin in a skiing resort."
Typically, emotion enhances recall because it activates two regions in the brain (hippocampus and amygdala), which are important for the encoding and retrieval of memories. In the current study (for the conditions that used emotional images instead of neutral images), it is possible that emotionally charged images (e.g., kittens, bomb, person skiing on sand, complicated yoga pose, frog waiting to be kissed, etc.) were not strongly associated with the content. In some conditions, participants remembered individual images, but could not remember the content on the slide (e.g., "I remember a picture of Nicole Kidman but have no idea what it was related to").
This confirms existing research according to which emotional elements benefit from a "spotlight" effect or act as an "attention magnet" and consequently lead to privileged processing, resulting in enhanced memory for the image but not for the peripheral details. You may have experienced this situation if you watched a funny commercial, and later related the humorous bits to a friend, but realized you had no idea what the ad was promoting.
What does it mean for PowerPoint presentations? Ensure that if you are using emotionally charged pictures, they are well integrated with the concept that is important for your audience to remember. What does "well integrated" mean? You can achieve integration in many ways; in this article, I will address two: proximity and continuation.
Proximity means ensuring the emotional image you use is as close as possible to the explanatory text; this works because close elements are perceived by the brain as being part of the same group, which means it will be easier to remember one thing versus several things. From this regard, default PowerPoint templates may be fundamentally flawed because they invite the separation of text and images.
Figure 2: Default PowerPoint templates may be inherently flawed for ensuring "memorable presentations" because they invite separation, not integration, of text and images
Figure 3 shows what happens when the text is integrated with the image, versus when the text is separated from the image. The image is very clever and the ad would benefit if the actual product logo or screen shot were closer to the coffee cup.
Figure 3: Better integration of the product with the clever image may lead to better recall
The reason why sometimes commercials are memorable in terms of emotions but not the product they advertise is because it is more difficult for the brain to remember associations than it is to remember images. If I emailed you in a few days after you read this article and asked what you remember, it will be easier for you to reproduce the idea of the coffee cup and the clever levels of productivity on it, but it will be more difficult to produce the name of the payroll program.
The image below is better in terms of integration of text and visuals. The only enhancement would be to make the UCLA text more evident at the top of the tag – after all, the source that paid for it should be important to remember... If we’re relying only on the text that is outside the tag, the association might be harder to remember. But overall, this is a great example of integrating text and pictures, and abiding by the principle of proximity.
Figure 4: Example of well-integrated product information and clever image. The entity name at the top could attract more attention to create an even stronger association between the school and its rewards.
Take a look at the next example for integration of text and pictures. This is an ad, but its layout could easily be a PowerPoint slide. Notice that the layout does not comply with the convenient default templates in PowerPoint of "click to add text here" and "click to add picture here." In this example, text and picture are overlapped, leading to better integration and possibly better recall.
Figure 5: Text and picture are overlapped, leading to better recall because the brain does not have to struggle to remember the association
Unfortunately, what often happens in business presentations is that text and pictures are presented as separate objects. Notice in the example below how the text is in one area and the image in the other. This is difficult to recall later because the brain has to remember the image (which is concrete) and the association (which is abstract). Between the two, it is likely that the image will linger in memory a lot longer but the connection with the text may be lost.
Figure 6: Separation of text and image may not lead to better memory because it is harder for the brain to remember associations
The second way you can achieve better integration of text and images is to ensure continuation in the PowerPoint layout. Continuation occurs when the eyes are guided to move from one object to the next object (elements arranged on a line or curve are perceived to be more related). Sometimes, when presenters create PowerPoint files in a rush, and without much knowledge of design principles, text and graphics are placed arbitrarily; there is no continuation from one part to the other. The example below indicates arbitrary design.
Figure 7: Example of arbitrary design, where nothing aligns with anything. There is no strong line that leads the eyes around the slide.
Notice in the next example, how the eyes first go to the picture, then they are following the gaze of the protagonist and naturally progress to the rest of the text. We are "toured around" the layout, even though there is no presenter to defend the context.
Figure 8: Example of good continuation; our eyes follow the person’s gaze and then focus on the text.
When you use people pictures (or creatures with eyes) in any of your layouts, the viewer’s eyes will look where they look. If you use objects, at the very minimum, make them "face" the text.
Figure 9: Example of good continuation; if you are using objects, make them "face" the text.
In summary, as you analyze slides in your PowerPoint decks, ask these questions:
Answers to these questions will lead you closer to a state we often desire: memorable presentations.
Dr. Carmen Simon's presentations and workshops help business professionals to use communication and presentation skills to increase revenue, train or motivate others, and overall to stand out from too much sameness in the industry.
A published author, Dr. Simon is frequently invited as a keynote speaker at various conferences. She is co-founder of Rexi Media, a company that helps business professionals from all fields improve their presentation skills, whether they deliver content face-to-face, online, or create ondemand presentations. To learn more, visit the Rexi Media site.
Categories: guest_post, opinion, powerpoint, survey
One word : fascinating.
And what makes it also incredibly inspiring is that someone like Carmen, at the top of the presentation game, continues to conduct surveys like these as there is nobody on the planet who can't carry on learning and improving.
The concepts of continuity and integration remind me of Richard E. Mayer's research in Multimedia Learning. He talked about contiguity (pictures should be spatially and temporally near words) and coherence (pictures should be coherent to the words; if not, they should not be used).
This is a great post and I second Ellen's comment. Carmen's findings support Mayer's research. I changed the look and feel of my slides after reading Mayer's findings. I like Carmen's idea of integrating a visually appealing text slide every five slides to keep the brain engaged. I'll try that in my presentations.
Allan Misch http://www.nosweatspeaking.com.
April 2003 | May 2003 | December 2003 | January 2004 | February 2004 | March 2004 | April 2004 | May 2004 | June 2004 | July 2004 | August 2004 | September 2004 | October 2004 | November 2004 | December 2004 | January 2005 | February 2005 | March 2005 | April 2005 | May 2005 | June 2005 | July 2005 | August 2005 | September 2005 | October 2005 | November 2005 | December 2005 | January 2006 | February 2006 | March 2006 | April 2006 | May 2006 | June 2006 | July 2006 | August 2006 | September 2006 | October 2006 | November 2006 | December 2006 | January 2007 | February 2007 | March 2007 | April 2007 | May 2007 | June 2007 | July 2007 | August 2007 | September 2007 | October 2007 | November 2007 | December 2007 | January 2008 | February 2008 | March 2008 | April 2008 | May 2008 | June 2008 | July 2008 | August 2008 | September 2008 | October 2008 | November 2008 | December 2008 | January 2009 | February 2009 | March 2009 | April 2009 | May 2009 | June 2009 | July 2009 | August 2009 | September 2009 | October 2009 | November 2009 | December 2009 | January 2010 | February 2010 | March 2010 | April 2010 | May 2010 | June 2010 | July 2010 | August 2010 | September 2010 | October 2010 | November 2010 | December 2010 | January 2011 | February 2011 | March 2011 | April 2011 | May 2011 | June 2011 | July 2011 | August 2011 | September 2011 | October 2011 | November 2011 | December 2011 | January 2012 | February 2012 | March 2012 | April 2012 | May 2012 | June 2012 | July 2012 | August 2012 | September 2012 | October 2012 | November 2012 | December 2012 | January 2013 | February 2013 | March 2013 | April 2013 | May 2013 | June 2013 | July 2013 | August 2013 | September 2013 | October 2013 | November 2013 | December 2013 | January 2014 | February 2014 | March 2014 | April 2014 | May 2014 | June 2014 | July 2014 | August 2014 | September 2014 | October 2014 | November 2014 | December 2014 | January 2015 | February 2015 | March 2015 | April 2015 | May 2015 | June 2015 | July 2015 | August 2015 | September 2015 | October 2015 | November 2015 | December 2015 | January 2016 | February 2016 | March 2016 | April 2016 | May 2016 | June 2016 | July 2016 | August 2016 | September 2016 | October 2016 | November 2016 | December 2016 |
Microsoft and the Office logo are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.