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 | Word length | 0.15 |
| 2 | CAN YOU PICK IT UP? | 0.45 |
| 3 | IS IT BIGGER THAN A CAR? | 0.45 |
| 4 | White pixel count | 0.20 |
| 5 | CAN YOU HOLD IT IN ONE HAND? | 0.40 |
| 6 | DO YOU WEAR IT? | 0.30 |
| 7 | Horizontalness | 0.25 |
| 8 | IS IT CLOTHING? | 0.15 |
| 9 | CAN YOU HOLD IT? | 0.30 |
| 10 | DOES IT HAVE FEELINGS? | 0.30 |
| 11 | IS IT BIGGER THAN A MICROWAVE OVEN? | 0.35 |
| 12 | Verticality | 0.25 |
| 13 | IS IT WARM BLOODED? | 0.45 |
| 14 | IS IT TALLER THAN A PERSON? | 0.40 |
| 15 | CAN IT CAUSE YOU PAIN? | 0.20 |
| 16 | IS IT HAIRY? | 0.20 |
| 17 | DOES IT HAVE MOVING PARTS? | 0.55 |
| 18 | IS IT A KITCHEN ITEM? | 0.55 |
| 19 | IS IT FLESH-COLORED? | 0.30 |
| 20 | IS IT A BUILDING PART? | 0.40 |
| 21 | IS IT YELLOW? | 0.15 |
| 22 | CAN IT RUN? | 0.45 |
| 23 | CAN IT SWIM? | 0.15 |
| 24 | IS IT BIGGER THAN A LOAF OF BREAD? | 0.35 |
| 25 | DO YOU FIND IT IN SPACE? | 0.05 |
| 26 | Internal details | 0.10 |
| 27 | CAN IT STRETCH? | 0.15 |
| 28 | CAN IT DIG? | 0.20 |
| 29 | IS IT A PREDATOR? | 0.20 |
| 30 | IS IT LONG? | 0.40 |
| 31 | DOES IT HAVE WHEELS? | 0.35 |
| 32 | Aspect-ratio: skinny->fat | 0.15 |
| 33 | Line curviness | 0.25 |
| 34 | COULD YOU FIT INSIDE IT? | 0.30 |
| 35 | IS IT BIGGER THAN A BED? | 0.40 |
| 36 | CAN IT KEEP YOU DRY? | 0.05 |
| 37 | IS IT FAST? | 0.45 |
| 38 | DOES IT HAVE EARS? | 0.55 |
| 39 | IS IT ELECTRONIC? | 0.40 |
| 40 | DOES IT PROVIDE PROTECTION? | 0.35 |
| 41 | DOES IT HAVE AT LEAST ONE HOLE? | 0.60 |
| 42 | IS IT A BODY PART? | 0.30 |
| 43 | DO YOU HOLD IT TO USE IT? | 0.55 |