1. Scene perception after those first few hundred milliseconds Jeremy Wolfe Brigham and Women's Hospital and Harvard Medical School

2. The constructive view of scene perception

5. Appealing…but wrong

6. The transient binding view of scene perception

12. If you want to know what is here ?

13. You will have to check

14. What is the evidence for this claim? The repeated search task The capital letters are the search array. The lower case letter at the center tell you what to look for on this trial. In repeated search, the search array does not change from trial to trial.

21. Slope of the RT x set size function is the measure of search efficiency

22. SLOPESLOPE

23. SLOPESLOPE

24. Actually, only 2AFC memory search is efficient Localization responses Melina Kunar’s mouseclick experiments. (Kunar, Flusberg, & Wolfe)

25. But this is a meeting about scenes So Aude and I did a version with scenes like this

26. Same basic result Note: Mean RT is faster, but search efficiency is unchanged. Repeated Unrepeated

27. We also did “panoramic” search

28. Panorama Experiments

35. You can search for a visible target You still get a slope

36. If the same target is hidden The slope can vanish

37. Subjects make a pragmatic choice Search if the target is visible

38. The “IsWas” Paradigm Minimal Change Blindness

39. Behold, I bring you a mystery. Does the cued dot change color?

41. No

43. Yes

44. No

45. So…to summarize

46. A selective pathway with an attentional bottleneck feeding object recognition and subsequent awareness

47. Access to the bottleneck is controlled by guiding representation.

48. A non-selective pathway can fill in the rest of the experience