A formal theory of feature binding in object perception

Author(s): Prinzmetal, W., Ivry, R., Maddox, W. T.

Journal/Book: Psychol Rev. 1996; 103: 750 First St NE, Washington, DC 20002-4242. Amer Psychological Assoc. 165-192.

Abstract: Visual objects are perceived correctly only if their features are identified and then bound together. Illusory conjunctions result when feature identification is correct but an error occurs during feature binding. A new model is proposed that assumes feature binding errors occur because of uncertainty about the location of visual features. This model accounted for data from 2 new experiments better than a model derived from A. M. Treisman and H. Schmidt's (1982) feature integration theory. The traditional method for detecting the occurrence of true illusory conjunctions is shown to be fundamentally flawed. A reexamination of 2 previous studies provided new insights into the role of attention and location information in object perception and a reinterpretation of the deficits in patients who exhibit attentional disorders.

Note: Review FG Ashby, Univ Calif Santa Barbara, Dept Psychol, Santa Barbara, CA 93106 USA

Keyword(s): FEATURE-INTEGRATION THEORY; VISUAL-SEARCH; ILLUSORY CONJUNCTIONS; SELECTIVE ATTENTION; LETTER IDENTIFICATION; SPATIAL LOCATION; REFERENCE POINTS; COLOR-VISION; SIMILARITY; RECOGNITION

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