Perception without Attention: Results of a New Method
Four experiments involving 145 college students (81 males and 64 females) studied the basis of early-stage preattentive perceptual organization. Results suggest that perceptual organization is initially based on a principle in which connected regions of uniform stimulation are inferred to be discret...
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| Published in | Cognitive psychology Vol. 24; no. 4; p. 502 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Netherlands
01.10.1992
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| Subjects | |
| Online Access | Get more information |
| ISSN | 0010-0285 |
| DOI | 10.1016/0010-0285(92)90017-V |
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| Abstract | Four experiments involving 145 college students (81 males and 64 females) studied the basis of early-stage preattentive perceptual organization. Results suggest that perceptual organization is initially based on a principle in which connected regions of uniform stimulation are inferred to be discrete units (the principle of uniform connectedness). (SLD) |
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| AbstractList | Having found by the use of a new method for examining perception without attention that grouping and texture segregation do not seem to occur (see Mack, Tang, Tuma, Kahn, & Rock (1992) Cognitive Psychology, 24, we go on to ask what is perceived without attention using this new method. Our subjects receive only one inattention trial in a sequence of trials involving a visual distraction task. In addition to the distraction task in the inattention trial, subjects received a stimulus of which they had no prior knowledge or expectation and were questioned or tested directly afterward for their perception of that stimulus. Two subsequent trials containing test stimuli serve as within-subject controls. The results of a series of experiments indicate that the presence of one or more stimulus objects and their locations are preattentively perceived, as is their color, but shape is not. Because individual items are detected without attention, we conclude that perceptual organization is initially based on a principle in which connected regions of uniform stimulation are inferred to be discrete units (the principle of uniform connectedness). One striking, unexpected finding is that without attention many subjects have no awareness at all of the stimulus object, an effect we call inattentional blindness. Four experiments involving 145 college students (81 males and 64 females) studied the basis of early-stage preattentive perceptual organization. Results suggest that perceptual organization is initially based on a principle in which connected regions of uniform stimulation are inferred to be discrete units (the principle of uniform connectedness). (SLD) |
| Author | Rock, Irvin |
| Author_xml | – sequence: 1 fullname: Rock, Irvin |
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| Snippet | Four experiments involving 145 college students (81 males and 64 females) studied the basis of early-stage preattentive perceptual organization. Results... Having found by the use of a new method for examining perception without attention that grouping and texture segregation do not seem to occur (see Mack, Tang,... |
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| Title | Perception without Attention: Results of a New Method |
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