Features were ranked based on the median peak score over 9 subjects. A row in the table also shows the median time point when that feature reached its peak score (medians taken over 9 subjects). All features shown were significantly predicted with p < 10-5 (corrected for multiple comparisons over features, regions, and time).
Semantic features are shown in upper case, and perceptual features in lower case.
| Rank | Feature | Median time (s) |
|---|---|---|
| 1 | IS IT BIGGER THAN A LOAF OF BREAD? | 0.55 |
| 2 | CAN YOU HOLD IT IN ONE HAND? | 0.45 |
| 3 | IS IT BIGGER THAN A BED? | 0.40 |
| 4 | CAN YOU PICK IT UP? | 0.40 |
| 5 | IS IT HOLLOW? | 0.55 |
| 6 | CAN IT STRETCH? | 0.40 |
| 7 | DOES IT HAVE A FRONT AND A BACK? | 0.35 |
| 8 | IS IT MANUFACTURED? | 0.50 |
| 9 | IS IT SMALLER THAN A GOLFBALL? | 0.55 |
| 10 | Prickiliness | 0.60 |
| 11 | IS IT AN INSECT? | 0.55 |
| 12 | CAN YOU HOLD IT? | 0.70 |
| 13 | IS IT A VEGETABLE / PLANT? | 0.25 |
| 14 | DOES IT HAVE WHEELS? | 0.35 |
| 15 | DOES IT HAVE SEEDS? | 0.25 |
| 16 | Right-diagonalness | 0.25 |
| 17 | CAN IT RUN? | 0.25 |
| 18 | DOES IT HAVE ROOTS? | 0.00 |
| 19 | Aspect-ratio: skinny->fat | 0.60 |
| 20 | DOES IT HAVE A HARD NOSE/BEAK? | 0.40 |
| 21 | WOULD YOU FIND IT IN THE FOREST? | 0.20 |
| 22 | IS IT BIGGER THAN A HOUSE? | 0.60 |
| 23 | White pixel count | 0.70 |
| 24 | DOES IT SMELL BAD? | 0.40 |