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 | 0.10 |
| 2 | Right-diagonalness | 0.20 |
| 3 | Internal details | 0.10 |
| 4 | IS IT BIGGER THAN A LOAF OF BREAD? | 0.25 |
| 5 | CAN YOU PICK IT UP? | 0.40 |
| 6 | CAN YOU HOLD IT IN ONE HAND? | 0.25 |
| 7 | DOES IT HAVE FEELINGS? | 0.30 |
| 8 | DOES IT HAVE EARS? | 0.45 |
| 9 | CAN YOU HOLD IT? | 0.40 |
| 10 | DOES IT HAVE A FACE? | 0.30 |
| 11 | IS IT MANUFACTURED? | 0.35 |
| 12 | IS IT BIGGER THAN A CAR? | 0.40 |
| 13 | IS IT AN ANIMAL? | 0.25 |
| 14 | IS IT ALIVE? | 0.35 |
| 15 | IS IT TALLER THAN A PERSON? | 0.40 |
| 16 | Verticality | 0.10 |
| 17 | IS IT BIGGER THAN A BED? | 0.40 |
| 18 | DO YOU HOLD IT TO USE IT? | 0.30 |
| 19 | CAN IT KEEP YOU DRY? | 0.40 |
| 20 | CAN IT CAUSE YOU PAIN? | 0.10 |
| 21 | DOES IT HAVE FLAT / STRAIGHT SIDES? | 0.45 |
| 22 | IS IT HAIRY? | 0.45 |
| 23 | IS IT WARM BLOODED? | 0.45 |
| 24 | IS IT A BUILDING? | 0.25 |
| 25 | IS IT ELECTRONIC? | 0.45 |
| 26 | CAN YOU BUY IT? | 0.25 |
| 27 | DOES IT GROW? | 0.35 |
| 28 | IS IT A BODY PART? | 0.30 |
| 29 | DOES IT HAVE SOME SORT OF NOSE? | 0.25 |
| 30 | Horizontalness | 0.25 |
| 31 | Line curviness | 0.25 |
| 32 | IS IT MANMADE? | 0.35 |
| 33 | White pixel count | 0.35 |
| 34 | CAN IT RUN? | 0.45 |
| 35 | WOULD YOU FIND IT IN A HOUSE? | 0.40 |
| 36 | CAN IT STRETCH? | 0.45 |
| 37 | DOES IT HAVE WIRES OR A CORD? | 0.50 |
| 38 | CAN YOU TOUCH IT? | 0.60 |
| 39 | CAN YOU PEEL IT? | 0.70 |
| 40 | IS IT SMART? | 0.45 |
| 41 | DOES IT USE ELECTRICITY? | 0.10 |
| 42 | CAN YOU RIDE ON/IN IT? | 0.20 |
| 43 | IS IT TAPERED? | 0.20 |
| 44 | CAN IT SWIM? | 0.15 |
| 45 | IS IT A VEGETABLE / PLANT? | 0.00 |
| 46 | DOES IT HAVE SEEDS? | 0.00 |
| 47 | DOES IT HAVE A BACKBONE? | 0.45 |
| 48 | IS PART OF IT MADE OF GLASS? | 0.40 |
| 49 | WAS IT INVENTED? | 0.35 |
| 50 | DOES IT HAVE PAWS? | 0.35 |
| 51 | IS IT CONSCIOUS? | 0.25 |
| 52 | DOES IT HAVE HORNS / THORNS / SPIKES? | 0.20 |
| 53 | DOES IT COME FROM A PLANT? | 0.25 |
| 54 | DOES IT COME IN PAIRS? | 0.60 |
| 55 | IS IT A VEHICLE? | 0.20 |
| 56 | CAN IT DIG? | 0.20 |
| 57 | IS IT MADE OF WOOD? | 0.25 |
| 58 | IS IT MADE OF METAL? | 0.55 |
| 59 | IS IT HEAVY? | 0.20 |