Excercise three: Law of Pragnanz and Interference Effects

by group taste: Marco, Cindy, Brian, Joanna, Cornelia

The law of Pragnanz

The Law of Pragnanz (or Gestalt’s principle of perception) suggests that, when given ambiguous visuals, humans tend to complete and interpret the image beyond what is apparent. It also states that humans simplify visuals in order to remember them; a useful tip for artists, as this means viewers are more likely to recognize less intricate designs.

There are many examples of the Law of Pragnanz, including any food in existence that has Christ’s face miraculously burnt onto it.




Intereference effect

Interference effects occur when the thoughts that are being processed simultaneously conflict with each other. Because our minds interpret and process information independently, when the productions of our interpretations are congruent, the process of interpretation will go smoothly. On the other hand, when the production is contrasting, interferences will occur and more time for processing is needed, therefore leads to a negative impact on performance. Interferences occur when aspects of stimulus contradict within itself, or learning contradicts memories.
To prevent interferences, avoid designs that will create mental conflicts visually and interactively.

This is an example of Stroop interference. The time it takes to say the colour of the words is longer than to say the words themselves.