Journal article
Perception without attention: Evidence of grouping under conditions of inattention
Journal of experimental psychology. Human perception and performance, Vol.23(2), pp.339-352
1997
DOI: 10.1037//0096-1523.23.2.339
PMID: 9103998
Abstract
Many theories of visual perception assume that before attention is allocated within a scene, visual information is parsed according to the Gestalt principles of organization. This assumption has been challenged by experiments in which participants were unable to identify what Gestalt grouping patterns had occurred in the background of primary-task displays (A. Mack, B. Tang, R. Tuma, S. Kahn, & I. Rock, 1992). In the present study, participants reported which of 2 horizontal lines was longer. Dots in the background, if grouped, formed displays similar to the Ponzo illusion (Experiments 1 and 2) or the Müller-Lyer illusion (Experiment 3). Despite inaccurate reports of what the patterns were, participants' responses on the line-length discrimination task were clearly affected by the 2 illusions. These results suggest that Gestalt grouping does occur without attention but that the patterns thus formed may not be encoded in memory without attention.
Details
- Title: Subtitle
- Perception without attention: Evidence of grouping under conditions of inattention
- Creators
- Cathleen M MooreHoward Egeth
- Resource Type
- Journal article
- Publication Details
- Journal of experimental psychology. Human perception and performance, Vol.23(2), pp.339-352
- DOI
- 10.1037//0096-1523.23.2.339
- PMID
- 9103998
- NLM abbreviation
- J Exp Psychol Hum Percept Perform
- ISSN
- 0096-1523
- eISSN
- 1939-1277
- Language
- English
- Date published
- 1997
- Academic Unit
- Psychological and Brain Sciences; Injury Prevention Research Center
- Record Identifier
- 9984002365102771
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