Abstract
Everyday scenes often contain sets of similar objects. Perceptual representations may summarize these with statistical descriptors. After determining the psychological mean of two sizes, we measured thresholds for judging the mean with arrays of 12 circles of heterogeneous sizes. They were close to those for the size of elements in homogeneous arrays and single elements, and were little affected by either exposure duration (50-1000 ms) or memory delays (up to 2s). They were only slightly more accurate within the same distribution than across different distributions (normal, uniform, two-peaks, and homogeneous), confirming that subjects were indeed averaging sizes.
| Original language | English |
|---|---|
| Pages (from-to) | 393-404 |
| Number of pages | 12 |
| Journal | Vision Research |
| Volume | 43 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2003 Feb 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Ophthalmology
- Sensory Systems
Cite this
}
Representation of statistical properties. / Chong, Sang Chul; Treisman, Anne.
In: Vision Research, Vol. 43, No. 4, 01.02.2003, p. 393-404.Research output: Contribution to journal › Article
TY - JOUR
T1 - Representation of statistical properties
AU - Chong, Sang Chul
AU - Treisman, Anne
PY - 2003/2/1
Y1 - 2003/2/1
N2 - Everyday scenes often contain sets of similar objects. Perceptual representations may summarize these with statistical descriptors. After determining the psychological mean of two sizes, we measured thresholds for judging the mean with arrays of 12 circles of heterogeneous sizes. They were close to those for the size of elements in homogeneous arrays and single elements, and were little affected by either exposure duration (50-1000 ms) or memory delays (up to 2s). They were only slightly more accurate within the same distribution than across different distributions (normal, uniform, two-peaks, and homogeneous), confirming that subjects were indeed averaging sizes.
AB - Everyday scenes often contain sets of similar objects. Perceptual representations may summarize these with statistical descriptors. After determining the psychological mean of two sizes, we measured thresholds for judging the mean with arrays of 12 circles of heterogeneous sizes. They were close to those for the size of elements in homogeneous arrays and single elements, and were little affected by either exposure duration (50-1000 ms) or memory delays (up to 2s). They were only slightly more accurate within the same distribution than across different distributions (normal, uniform, two-peaks, and homogeneous), confirming that subjects were indeed averaging sizes.
UR - http://www.scopus.com/inward/record.url?scp=0037303322&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037303322&partnerID=8YFLogxK
U2 - 10.1016/S0042-6989(02)00596-5
DO - 10.1016/S0042-6989(02)00596-5
M3 - Article
C2 - 12535996
AN - SCOPUS:0037303322
VL - 43
SP - 393
EP - 404
JO - Vision Research
JF - Vision Research
SN - 0042-6989
IS - 4
ER -