Alternate titles: Von Restorff Effect, Distinctiveness Principle, Prominence Effects, Environmental Salience Effects, Novel Popout Effect.
Items that stand out from their peers are more memorable
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Make important information or key actions visually distinctive.
The Isolation Effect, also known as the Von Restorff Effect, proposes that one item that differs from multiple similar objects that are present, the one item that differs will be more likely to be remembered. When the item in question stands out less, the likelihood of it being remembered similarly decreases.
Inferred, people value a thing differently depending on whether it is placed in isolation and whether it is placed next to an alternative. One choice can be made to look more attractive, when placed next to an alternative, to which it distinctively outranks in some respect.
Being different is more memorable. Being positively remembered makes you stand out from the crowd. Create meaningful and helpful contrasts between products. Use color, shape, position, and texture to accentuate contrast. We remember more positively, if we understand a meaningful rationale behind the accentuation.
We remember things that stand out. This is the reason why CTA (Call-to-Action) buttons stand out and look different from the rest of the actions buttons on the same page.
The Von Restorff effect was recognised by Hedwig von Restorff in 19331. She conducted a set of memory experiments around isolated and distinctive items, concluding that an isolated item, in a list of otherwise similar items, would be better remembered than an item in the same relative position in a list where all items were similar.
Taylor & Fiske2 further indicated that attention is usually captured by salient, novel, surprising, or distinctive stimuli. These may be used to enhance the von Restorff effect.
2 Salience, attention and attribution: Top of the head phenomena (1978), In L. Berkowitz (Ed.), Advances in experimental social psychology (Vol. 11. pp. 249-288). New York: Academic Press
3 The Von Restorff Effect ~ Making things stand-out from the background
at Changing Minds