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Selective attention to the parts of an object

Selective attention to the parts of an object,SHAUN P. VECERA,MARLENE BEHRMANN,JOHN MCGOLDRICK

Selective attention to the parts of an object   (Citations: 41)
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Recent empirical results suggest that there is a decrement in dividing attention between two objects in a scene compared with focusing attention on a single object. However, objects can be made of indi- vidual parts. Is there a decrement for dividing attention across different parts of a single object? We ad- dressed this question in two experiments. In Experiment 1, we demonstrated that attention can exhibit part-based selection—that is, the subjects were more accurate in reporting two attributes from the same part of an object than they were in reporting attributes from different parts of an object. In Ex- periment 2, we demonstrated that part-based attentional decrements occurred simultaneously with ob- ject-based attentional decrements. The results from Experiment 2 demonstrated that part-based at- tention is evident at the same time as objects are processed as coherent wholes. Our results imply that there is an attentional mechanism that can select either objects or their parts.
Published in 1999.
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    • ...Vecera and colleagues (Vecera, Behrmann, & McGoldrick, 2000; Vecera et al., 2001) have provided the main examination of parts and visual attention (see also now, Barenholtz & Feldman, 2003; Reppa & Leek, 2003; and under a more liberal interpretation of ‘part’, see Bilsky & Wolfe, 1995; Wolfe, Friedman-Hill, & Bilsky, 1994)...

    Ulrike Hahnet al. Exemplar similarity and rule application

    • ...This is readily observed in scene perception, in which objects are segmented from backgrounds (e.g., Biederman, 1987; Vecera, Behrmann, & McGoldrick, 2000; Woodman, Vecera, & Luck, 2003), and in discourse processing, in which transitions between clauses and narrated situations influence reading times and discourse memory (e.g., Clark & Sengul, 1979; Glenberg, Meyer, & Lindem, 1987)...

    Khena M. Swallowet al. Event Boundaries in Perception Affect Memory Encoding and Updating

    • ...There is evidence that parts are processed early and obligatorily (e.g., Xu & Singh, 2002), and there is also evidence that part boundaries constrain the deployment of attention (e.g., Vecera, Behrmann, & McGoldrick, 2000)...

    Marco Bertamini. Detection of Convexity and Concavity in Context

    • ...Other forms of object attention have been investigated by assessing the relationship between attention and the locations and attributes that are parts of hierarchically defined perceptual objects (Egly, Driver, & Rafal, 1994; Moore, Yantis, & Vaughan, 1998) or object parts (Vecera, Behrmann, & Filapek, 2001; Vecera, Behrmann, & McGoldrick, 2000)...

    Shiau-Hua Liuet al. The role of judgment frames and task precision in object attention: Re...

    • ...Duncan & Nimmo-Smith, 1996; Kramer, Weber, & Watson, 1997; Lavie & Driver, 1996; Valdes-Sosa, Cobo, & Pinilla, 1998; Vecera & Farah, 1994), for ‘objects’ completed behind static occluders (Behrmann, Zemel, & Mozer, 1998; Moore, Yantis, & Vaughan, 1998), and for the individual parts of more complex objects (Barenholtz & Feldman, 2003; Singh & Scholl, 2000; Vecera, Behrmann, & McGoldrick, 2000, 2001)...
    • ...However, the perceptual structure, and the corresponding internal representation, can easily qualify as two diVerent parts of a more complex object and in this sense link our study directly to similar hierarchies in the OBA literature (Barenholtz & Feldman, 2003; Singh & Scholl, 2000; Vecera et al., 2000, Vecera, Behrmann, & Filapek, 2001)...
    • ...Since such segmentation constitutes an especially subtle (and arguably less salient) form of segregation which is formed by the distribution of the orientation texton, it could possibly be linked to object-part hierarchies (Singh & Scholl, 2000; Vecera et al., 2000, 2001) rather than multiple high level intuitive objects...
    • ...Objects are sometimes contrasted with other high-level classes of entities, such as groups (Driver et al., 2001), parts (Vecera et al., 2000, 2001), or non-solid substances (vanMarle & Scholl, 2003)...

    Ohad Ben-Shaharet al. Attention, segregation, and textons: Bridging the gap between object-b...

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