Comparing view sensitivity in shape discrimination with shape sensitivity in view discrimination

Rebecca Lawson, Heinrich Bulthoff

Research output: Contribution to journalArticle

6 Citations (Scopus)


In three picture-picture matching experiments, the effects of a view change on our ability to detect a shape change (Experiments 1 and 2) were contrasted with the effects of a shape change on our ability to detect a view change (Experiment 3). In each experiment, both view changes and shape changes influenced performance. However, shape changes had more influence than did view changes in the shape change detection task. Conversely, view changes were more influential when the task was to detect view changes. Thus, the participants could often discriminate between the effects of shape changes and the effects of view changes. The disruptive effect of task-irrelevant changes (view changes in the first two experiments; shape changes in the final experiment) does not support Stankiewicz's (2002) claim that information about viewpoint and about shape can be estimated independently by human observers. However, the greater effect of variation in the task-relevant than in the task-irrelevant dimension indicates that the observers were moderately successful at disregarding irrelevant changes.

Original languageEnglish
Pages (from-to)655-673
Number of pages19
JournalPerception and Psychophysics
Issue number4
Publication statusPublished - 2006 Dec 12
Externally publishedYes


ASJC Scopus subject areas

  • Psychology(all)
  • Experimental and Cognitive Psychology

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