1. Posner & Keele Demo

2. Prototype Low Distortions High Distortions Random Patterns

3. will see dot patterns judge whether each belongs to category A or category B guess at first, but will get better with feedback

4. That was Category B.

5. That was Category A.

7. That was Category B.

9. That was Category A.

11. That was Category B.

12. That was Category A.

13. That was Category B.

14. Now, judge whether or not you have seen the following dot pattern.

15. Old or New 1

16. 2

17. 3

18. 4

19. 5

20. 6

21. 7

22. 8

23. 9

24. 10

25. Category A members 6th stimulus PROTOTYPE-A

26. Category B members 9th stimulus PROTOTYPE-B