scholarly journals Dynamic objects are more than the sum of their views: Behavioural and neural signatures of depth rotation in object recognition

2010 ◽  
Vol 8 (6) ◽  
pp. 39-39 ◽  
Author(s):  
Q. C. Vuong ◽  
J. Schultz
Keyword(s):  
Object Recognition ◽  
Depth Rotation ◽  
Dynamic Objects ◽  
Neural Signatures

scholarly journals Timecourse of neural signatures of object recognition

10.1167/3.7.4 ◽  
2003 ◽  
Vol 3 (7) ◽  
pp. 4 ◽  
Author(s):  
Jeffrey S. Johnson ◽  
Bruno A. Olshausen
Keyword(s):  
Object Recognition ◽  
Neural Signatures

Object Recognition under Sequential Viewing Conditions: Evidence for Viewpoint-Specific Recognition Procedures

Perception ◽  
1994 ◽  
Vol 23 (5) ◽  
pp. 595-613 ◽  
Author(s):  
Rebecca Lawson ◽  
Glyn W Humphreys ◽  
Derrick G Watson
Keyword(s):  
Object Recognition ◽  
Primary Role ◽  
Object Knowledge ◽  
Line Drawings ◽  
Efficient Access ◽  
Neurophysiological Studies ◽  
Specific Object ◽  
Depth Rotation ◽  
Series Of Experiments ◽  
Image Descriptions

In many computational approaches to vision it has been emphasised that object recognition involves the encoding of view-independent descriptions prior to matching to a stored object model, thus enabling objects to be identified across different retinal projections. In contrast, neurophysiological studies suggest that image descriptions are matched to less abstract, view-specific representations, resulting in more efficient access to stored object knowledge for objects presented from a view similar to a stored viewpoint. Evidence favouring a primary role for view-specific object descriptions in object recognition is reported. In a series of experiments employing line drawings of familiar objects, the effects of depth rotation upon the efficiency of object recognition were investigated. Subjects were required to identify an object from a sequence of very briefly presented pictures. The results suggested that object recognition is based upon the matching of image descriptions to view-specific stored representations, and that priming effects under sequential viewing conditions are strongly influenced by the visual similarity of different views of objects.

Use It and Still Lose It?

GeroPsych ◽  
2010 ◽  
Vol 23 (3) ◽  
pp. 169-175 ◽  
Author(s):  
Adrian Schwaninger ◽  
Diana Hardmeier ◽  
Judith Riegelnig ◽  
Mike Martin
Keyword(s):  
Object Recognition ◽  
Cognitive Development ◽  
Recognition Test ◽  
Cognitive Aging ◽  
Recognition Task ◽  
Airport Security ◽  
Visual Object ◽  
Long Term Effects ◽  
Object Recognition Test ◽  
X Ray

In recent years, research on cognitive aging increasingly has focused on the cognitive development across middle adulthood. However, little is still known about the long-term effects of intensive job-specific training of fluid intellectual abilities. In this study we examined the effects of age- and job-specific practice of cognitive abilities on detection performance in airport security x-ray screening. In Experiment 1 (N = 308; 24–65 years), we examined performance in the X-ray Object Recognition Test (ORT), a speeded visual object recognition task in which participants have to find dangerous items in x-ray images of passenger bags; and in Experiment 2 (N = 155; 20–61 years) in an on-the-job object recognition test frequently used in baggage screening. Results from both experiments show high performance in older adults and significant negative age correlations that cannot be overcome by more years of job-specific experience. We discuss the implications of our findings for theories of lifespan cognitive development and training concepts.

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