Spatial arrangement in texture discrimination and texture segregation.
Spatial arrangement in texture discrimination and texture segregation.
复制标题
作者:
Vancleef K;Putzeys T;Gheorghiu E;Sassi M;Machilsen B;Wagemans J
We investigated the role of spatial arrangement of texture elements in three psychophysical experiments on texture discrimination and texture segregation. In our stimuli, oriented Gabor elements formed an iso-oriented and a randomly oriented texture region. We manipulated (1) the orientation similarity in the iso-oriented region by adding orientation jitter to the orientation of each Gabor; (2) the spatial arrangement of the Gabors: quasi-random or regular; and (3) the shape of the edge between the two texture regions: straight or curved. In Experiment 1, participants discriminated an iso-oriented stimulus from a stimulus with only randomly oriented elements. Experiment 2 required texture segregation to judge the shape of the texture edge. Experiment 3 replicated Experiment 2 with Gabors of a smaller spatial extent in a denser arrangement. We found comparable performance levels with regular and quasi-random Gabor positions in the discrimination task but not in the segregation tasks. We conclude that spatial arrangement plays a role in a texture segregation task requiring shape discrimination of the texture edge but not in a texture discrimination task in which it is sufficient to discriminate an iso-oriented region from a completely random region.
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影响因子:
1.8
作者:
Giora, Enrico;Casco, Clara
通讯作者:
Casco, Clara
影响因子:
1.8
作者:
Keeble, DRT;Kingdom, FAA;Morgan, MJ
通讯作者:
Morgan, MJ
DOI:
10.3758/bf03209145
发表时间:
1992-09-01
期刊:
PERCEPTION & PSYCHOPHYSICS
影响因子:
--
作者:
BENAV, MB;SAGI, D;BRAUN, J
通讯作者:
BRAUN, J
影响因子:
3.7
作者:
Lamme, VAF;Rodriguez-Rodriguez, V;Spekreijse, H
通讯作者:
Spekreijse, H
影响因子:
6.8
作者:
AKAIKE, H
通讯作者:
AKAIKE, H