Human-centered design

variables impacting attention

• Automaticity

• When a task becomes automatic it requires less in the way of conscious cognitive resources
• Automaticity can increases our ability to multitask and attend to larger sets of information

• Multiple modalities

• It is easier to divide attention between two different modalities (one visual, one aural) than between two distinct information sources presented in same modality
• Earliest Memories

working memory: design strategies

• Minimize the load on working memory for learning activities

• design user interfaces, interactive modules, and learning materials so that participants are not required to hold large numbers of discrete chunks of information in memory (remember the magic number 7 +- 2)
•