Abstract:
:If two demarcated dots are embedded in separate clusters of similar dots in off centre positions, their perceived separation is biased towards the separation between the centres of the clusters (Morgan, Hole, & Glennerster, 1990). We replicated these results and went on to determine whether a similar bias is present for orientation judgments, using a staircase method and a range of cluster orientations and separations. A complex pattern of biases was found including biases for targets at centroids. Orientation attraction towards tangents to the clusters seemed to be involved. We conclude that orientation is subject to different contextual constraints from separation, and that bias towards the edges of clusters needs to be included in models of position coding.
journal_name
Vision Resjournal_title
Vision researchauthors
Seizova-Cajic T,Gillam Bdoi
10.1016/j.visres.2006.02.010subject
Has Abstractpub_date
2006-08-01 00:00:00pages
2525-34issue
16eissn
0042-6989issn
1878-5646pii
S0042-6989(06)00092-7journal_volume
46pub_type
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