In the interests of sparking commentary and kickstarting my nascent "design as cultural imperialism" thought process (and future unbook—because thoughts on social and cultural perception and construction are never complete), I'm excerpting portions of my capstone project on this blog. You're reading Part 6: cognitive advantages of fluency. If you've arrived here by direct link, you might catch up here: Part 1, Part 2, Part 3, Part 4, Part 5. As always, read, comment, tweet, retweet, argue, assert, agree: I'm game.
Cognitive Advantages
What are the rewards for a bit of cognitive assistance? A mixture of internal and external knowledge affords us the luxury of reflection—modification, manipulation and comparison of mental representations or ideas (Norman, 1993). Visualizations can facilitate the scaffolding of large and complex issues, augmenting the contemplation of complex or previously hidden relationships, and correlating hitherto unrelated or disconnected data. "Representations are important because they allow us to work with events and things absent in space and time, or for that matter, events and things that never existed—imaginary objects and concepts" (Norman, 1993, p. 49-50).
Specifically, diagrams offer computational advantages (Larkin & Simon, 1987) because the information contained within them is indexed in ways that "can support extremely useful and efficient computational processes" (p. 99). Taken a step further, "dynamic visualizations maybe considered as less complex than static visualizations since the depicted dynamics are readily perceivable and do not need to be inferred by the learner" (Schmidt-Weigand, 2009, p. 101). Visualizations can conceptually chunk information through visual grouping further speeding cognitive processing thereby reducing "the need for searching for multiple information elements related to a single idea" (p. 72).
Properly designed visualizations present data in new forms that enhance "the ability to make judgments, to discover relevant regularities and structures" (Norman, 1993, p. 52). This interpretive aspect is important because “it is through metarepresentations that we generate new knowledge, finding consistencies and patterns in the representations that could not readily be noticed in the world” (p. 51).
Since human brains have evolved to think using pictures, and the sequentiality of text may slow or impede cognition, it follows that "presenting information as pictures is the most efficient way to present information to people" (Weinschenk, 2009, p. 115). Ergo, good information visualizations—those that capture the essential elements while excluding extraneous ones—can transform problems into easy experiential tasks. This transformative capacity is valuable because "experiential artifacts thus mediate between the mind and the world" (Norman, 1993, p. 52).
Ultimately, information visualization should encourage message processing through imaginal thinking. Paivio (1975) notes, "imaginal thinking can be characterized by remarkable speed, accuracy, and flexibility of information processing" (p. 161). Moreover, imaginal thinking quickly and synchronously organizes imagery into units that then function essentially as memory storage units (Paivio, 1975). "External visualizations enable cognitive operations that would otherwise have to be conducted internally (e.g., mental imagery)" (Scheiter, Weibe & Holsanova, 2009, p. 75).
Because they can compress huge volumes of data in real-time by providing deep, contextualized information at a glance, visualizations can dramatically reduce cognitive load and increase the human ability to absorb additional information: real wins for cognitive processing, encoding, and retrieval.
Fluency, Familiarity and Visualization
Visualizations also traffic in the psychologically important currency of narrativity (as discussed in part 5) and fluency. Fluency, "the subjective experience of ease or difficulty with which we are able to process information" (Oppenheimer, 2008, p. 237), is "a ubiquitous metacognitive cue that accompanies cognition across the full spectrum of cognitive processes" (Alter & Oppenheimer, 2009, p. 232) affecting perception, conceptualization, linguistics, retrieval, encoding, embodiment, decision-making, spatial perception, deduction, generativity, and attention (Oppenheimer, 2008).
The perception of fluency seems to elicit positive reactions toward the subject or experience perceived as fluent (Winkielman, Halberstadt, Fazendeiro & Catty, 2006). Hence, the potential fluency generated by the aesthetic appeal of visualizations may counterbalance some of the more formidable traits of large and complex data sets. Conversely, Reber, Schwarz & Winkielman (2004) theorize that fluency directly influences aesthetic perception. In other words, the more fluent an experience or object seems to a perceiver, the greater the perceiver's aesthetic response. Song & Schwartz (2010) contend that our sense of aesthetics is intertwined with an innate attraction to fluency.
In general, research seems to indicate that fluency repeatedly trumps disfluency: highly fluent statements seem truer, more likable, more frequent, more famous, are better category members and seem to come from a more intelligent source than disfluent statements (Oppenheimer, 2008). Consequently, fluent visualizations are likely to possess those same positive qualities.
Somewhat unexpectedly, disfluency, while initially seeming like an undesirable trait, may be finessed to a communicator's advantage. Simple typographic disfluency in the form of a degraded font led some research participants toward a more "systematic processing strategy" (p. 239) and away from an automatic response. Consequently, the tendency of visual disfluency to affect or shift cognitive methodologies may play an important role in the design and display of controversial or cognitively complex data.
And this brings us around to the potential importance of the mere exposure effect (Zajonc, 1968) in visualization. Although people generally prefer familiar stimuli to new but otherwise identical stimuli (Alter & Oppenheimer, 2009), through effective exploitation of the mere exposure effect they can be induced to accept disfluency and even like it if they are exposed to it frequently enough. The processing fluency/attribution model (Bornstein & D'Agostino, 1994) argues a similar point but includes fluency as part of the equation: the greater the frequency of exposure, the more easily the stimuli can be retrieved from memory which leads to positive attribution (Alter & Oppenheimer, 2009). Hence, an increase in the frequency of visualizations appearing in media sources could reflexively increase the audience's acceptance and appreciation for this type of data representation.
Next up in Part 7: potential issues and drawbacks of information visualization. Part 8 will conclude our series.
References
Alter, A., & Oppenheimer, D. (2009). Uniting the tribes of fluency to form a metacognitive nation. Personality and Social Psychology Review, 13(3), 219-235.
Bornstein, R. F., & D’Agostino, P. R. (1994). The attribution and discounting of perceptual fluency: preliminary tests of a perceptual fluency/attributional model of the mere exposure effect. Social Cognition, 12, 103-128.
Larkin, J. & Simon, H. (1987). Why a diagram is (sometimes) worth ten thousand words. Cognitive Science, 11, 65-99.
Norman, D. (1993). Things that make us smart. Reading, MA: Addison Wesley.
Oppenheimer, D. (2008). The secret life of fluency. Trends in Cognitive Sciences, 12(6), 237-241.
Paivio, A. (1975). Imagery and synchronic thinking. Canadian Psychological Review, 16(3), 147-163.
Reber, R., Schwarz, N., & Winkielman, P. (2004). Processing fluency and aesthetic pleasure: is beauty in the perceiver’s processing experience? Personality and Social Psychology Review, 8(4), 364-382.
Scheiter, K., Wiebe, E., & Holsanova, J. (2009). Theoretical and instructional aspects of learning with visualizations. In R. Zheng (Ed.) Cognitive Effects of Multimedia Learning (pp. 67-87). Hershey, PA: IGI Global.
Schmidt-Weigand, F. (2009). The influence of visual and temporal dynamics on split attention: evidences of eye tracking. In R. Zheng (Ed.) Cognitive Effects of Multimedia Learning (pp. 89-107). Hershey, PA: IGI Global.
Song, H., & Schwarz, N. (2010). If it's easy to read, it's easy to do, pretty, good, and true. The Psychologist, 23(2), 108-111.
Weinschenk, S. (2009). Neuro web design. Berkeley, CA: New Riders.
Winkielman, P., Halberstadt, J., Fazendeiro, T., & Catty, S. (2006). Prototypes are attractive because they are easy on the mind. Psychological Science, 17(7) 799-806.
Zajonc, R. (1968). Attitudinal effects of mere exposure. Journal of Personality and Social Psychology, Monograph Supplement, 9(2), 1-27.
Copyright © 2011 Carla Casilli. All rights reserved.