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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: Vision Res. 2016 Jan 28;126:347–361. doi: 10.1016/j.visres.2015.07.004

Table 1.

Results of Experiment 1: Raw thresholds (T), and thresholds converted to the Area-based shape metric (A), and Distance-based shape metric (D), with corresponding 95% CIs, for shape transformations involving part length, width, curvature, orientation and location.

Raw threshold Area difference Distance (avg)
KD T CI
(low)		 CI
(high)		 A CI
(low)		 CI
(high)		 D CI
(low)		 CI
(high)
length 0.3032 0.2487 0.3297 5.48 4.56 6.05 0.0392 0.0323 0.0421
width 0.1137 0.0987 0.1254 6.19 5.51 6.82 0.0457 0.0399 0.0507
curv 0.1629 0.1454 0.1803 19.84 17.83 21.67 0.1382 0.1238 0.1509
ori 10.7000 9.4660 11.9997 27.32 24.15 30.55 0.1911 0.1690 0.2142
loc 0.5898 0.4639 0.6334 65.29 51.67 69.96 0.3945 0.3709 0.4015
SS T CI
(low)		 CI
(high)		 A CI
(low)		 CI
(high)		 D CI
(low)		 CI
(high)
length 0.2205 0.1580 0.2490 4.20 3.10 4.56 0.0301 0.0206 0.0323
width 0.0711 0.0564 0.0790 4.09 3.29 4.60 0.0290 0.0227 0.0329
curv 0.1222 0.1047 0.1338 15.28 13.26 16.61 0.1060 0.0919 0.1149
ori 6.0800 4.8939 6.9570 15.50 12.62 17.78 0.1088 0.0880 0.1244
loc 0.6190 0.5779 0.6881 68.34 64.11 75.77 0.3979 0.3938 0.4088
SC T CI
(low)		 CI
(high)		 A CI
(low)		 CI
(high)		 D CI
(low)		 CI
(high)
length 0.2140 0.1663 0.2435 4.12 3.24 4.51 0.0271 0.0237 0.0323
width 0.0601 0.0484 0.0681 3.44 2.86 3.81 0.0240 0.0200 0.0271
curv 0.0931 0.0814 0.1047 11.83 10.50 13.26 0.0816 0.0722 0.0919
ori 9.4500 8.1884 10.4195 24.11 20.87 26.58 0.1687 0.1463 0.1860
loc 0.3741 0.3097 0.4218 41.95 34.78 47.05 0.3037 0.2501 0.3400
SK T CI
(low)		 CI
(high)		 A CI
(low)		 CI
(high)		 D CI
(low)		 CI
(high)
length 0.3011 0.2774 0.3585 5.44 5.16 6.39 0.0392 0.0362 0.0449
width 0.0593 0.0468 0.0672 3.40 2.76 3.79 0.0237 0.0194 0.0268
curv 0.0989 0.0873 0.1163 12.52 11.15 14.68 0.0864 0.0769 0.1014
ori 6.7616 5.6154 7.5901 17.22 14.42 19.37 0.1209 0.1010 0.1356
loc 0.2353 0.1348 0.2730 26.65 15.38 30.77 0.1915 0.1096 0.2216
SHK T CI
(low)		 CI
(high)		 A CI
(low)		 CI
(high)		 D CI
(low)		 CI
(high)
length 0.2342 0.1935 0.2554 4.39 3.62 4.67 0.0323 0.0260 0.0333
width 0.0526 0.0400 0.0600 3.04 2.32 3.44 0.0214 0.0159 0.0240
curv 0.0989 0.0873 0.1105 12.52 11.15 14.02 0.0864 0.0769 0.0969
ori 10.4321 9.2330 11.2178 26.60 23.52 28.61 0.1862 0.1648 0.2005
loc 0.2416 0.1719 0.2751 27.30 19.55 31.05 0.1962 0.1393 0.2232
CC T CI
(low)		 CI
(high)		 A CI
(low)		 CI
(high)		 D CI
(low)		 CI
(high)
length 0.3922 0.3407 0.4198 7.11 6.22 7.64 0.0496 0.0441 0.0504
width 0.0932 0.0808 0.1107 5.23 4.66 6.05 0.0380 0.0336 0.0445
curv 0.1047 0.0814 0.1163 13.26 10.50 14.68 0.0919 0.0722 0.1014
ori 10.1415 8.6745 11.1635 25.84 22.13 28.47 0.1809 0.1549 0.1996
loc 0.3474 0.3021 0.4088 39.01 34.00 45.66 0.2817 0.2446 0.3306