Abstract
These experiments address the question of whether the perception of a form is exclusively determined by a prior analysis of its elements. Employing a signal detection task, Experiment 1 replicated the finding of Weisstein and Harris (1974) that embedding a line segment feature in a unitary figural context facilitates its detection. The results of Experiment 2 suggest that the most probable agent of this context effect on feature detection is the three-dimensionality of the unitary context. With bi-hemiretinal stimulus presentation. Experiment 3 showed a significant context effect in the right, but not in the left visual field. Some current paradigms are applied to these results.
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