1. Attention Understanding attention processes What is attention?

2. Attention Understanding attention processes Why is attention relevant to interface design?

3. Spotlight metaphor What makes the spotlight move? Visualogist on flickr

4. Attention Control Top-down Bottom-up

5. Attention Control Top-down Bottom-up

6. Attention Control Top-down Bottom-up

7. Visual Scanning Visual Search vs

8. Visual Scanning Visual Search vs

9. Visual Scanning Influenced by 6 factors: 1 2 3 4 5 6

10. Visual Scanning Probability of looking at an area:

11. Visual Scanning Visual Search vs

12. Visual Search The effort to detect a targetitem whose presence or position in the field is not known a priori.

13. Target Well-specified Vague Top-down Bottom-up

14. Field Structured Predictable Haphazard In which type of field is it easier to find a target?

15. Facilitating Visual Search How can we design interfaces so it’s easier for people to find what they need?

16. A target is easier to find if…

17. Presence/Absence of Unique Feature

18. Deviation from default value | | | | | | | | | | | | | | | | | | | | | | | br />| br />br />br />

19. Summary Attentional Control Top-down vs. Bottom-up Visual Scanning 6 factors that influence it Visual Search Target Field Facilitating it Amazon.com