Biases in judgments of separation and orientation of elements belonging to different clusters.

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 Res

journal_title

Vision research

authors

Seizova-Cajic T,Gillam B

doi

10.1016/j.visres.2006.02.010

subject

Has Abstract

pub_date

2006-08-01 00:00:00

pages

2525-34

issue

16

eissn

0042-6989

issn

1878-5646

pii

S0042-6989(06)00092-7

journal_volume

46

pub_type

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