TY - JOUR
T1 - Greater depth seen with phantom stereopsis is coded at the early stages of visual processing
AU - Mitsudo, Hiroyuki
AU - Nakamizo, Sachio
AU - Ono, Hiroshi
N1 - Funding Information:
This research was supported in part by the National Institute of Information and Communications Technology, by Grant-in-aid for the 21st Century COE Program, and by a Grant-in-Aid for Scientific Research (Kiban-kenkyu 2C-14510100) provided by the Japanese Ministry of Education, Science, and Culture to S.N. H.M. was partly supported by JSPS Research Fellowships for Young Scientists. We thank Daiichiro Kuroki and Linda Lillakas for helpful comments on an earlier version of this manuscript.
PY - 2005/5
Y1 - 2005/5
N2 - A visual search task was used to investigate the spatially parallel coding of depth from binocular disparity and from binocularly unmatched features. Experiment 1, using disparity noise, showed that detectability is higher for illusory phantom targets defined by unmatched features than for disparity-defined targets, although the two targets were equated as to theoretically minimum depth. Experiment 2, using binocularly unmatched noise whose width was equal to the disparity of the noise used in Experiment 1, showed that noise severely interferes with the detection of both the disparity and the phantom targets. These results are consistent with the idea that the greater depth seen with phantom stereopsis is coded at the early stages of visual processing.
AB - A visual search task was used to investigate the spatially parallel coding of depth from binocular disparity and from binocularly unmatched features. Experiment 1, using disparity noise, showed that detectability is higher for illusory phantom targets defined by unmatched features than for disparity-defined targets, although the two targets were equated as to theoretically minimum depth. Experiment 2, using binocularly unmatched noise whose width was equal to the disparity of the noise used in Experiment 1, showed that noise severely interferes with the detection of both the disparity and the phantom targets. These results are consistent with the idea that the greater depth seen with phantom stereopsis is coded at the early stages of visual processing.
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U2 - 10.1016/j.visres.2004.12.002
DO - 10.1016/j.visres.2004.12.002
M3 - Article
C2 - 15743607
AN - SCOPUS:14644393698
SN - 0042-6989
VL - 45
SP - 1365
EP - 1374
JO - Vision Research
JF - Vision Research
IS - 11
ER -