Open Access. Powered by Scholars. Published by Universities.®
Social and Behavioral Sciences Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Social and Behavioral Sciences
The Configural Advantage In Object Change Detection Persists Across Depth Rotation, Simone K. Favelle, Stephen Palmisano, Darren Burke, William G. Hayward
The Configural Advantage In Object Change Detection Persists Across Depth Rotation, Simone K. Favelle, Stephen Palmisano, Darren Burke, William G. Hayward
Faculty of Health and Behavioural Sciences - Papers (Archive)
Although traditionally there has been a debate over whether object recognition involves 3-D structural descriptions or 2-D views, most current approaches to object recognition include the representation of object structure in some form. An advantage for the processing of structural or configural information in objects has been recently demonstrated using a change detection task (Keane, Hayward, & Burke, 2003). We report two experiments that extend this finding and show that configural information dominates change detection performance regardless of an object's orientation. Experiment 1 demonstrated the advantage that configural information has over shape and part arrangement information in change detection across …
Effect Of Decorrelation On 3-D Grating Detection With Static And Dynamic Random-Dot Stereograms, Stephen A. Palmisano, Robert S. Allison, Ian P. Howard
Effect Of Decorrelation On 3-D Grating Detection With Static And Dynamic Random-Dot Stereograms, Stephen A. Palmisano, Robert S. Allison, Ian P. Howard
Faculty of Health and Behavioural Sciences - Papers (Archive)
Three experiments examined the effects of image decorrelation on the stereoscopic detection of sinusoidal depth gratings in static anddynamic random-dot stereograms (RDS). Detection was found to tolerate greater levels of image decorrelation as: (i) density increasedfrom 23 to 676 dots/deg2; (ii) spatial frequency decreased from 0.88 to 0.22 cpd; (iii) amplitude increased above 0.5 arcmin; and (iv) dotlifetime decreased from 1.6 s (static RDS) to 80 ms (dynamic RDS). In each case, the specific pattern of tolerance to decorrelation couldbe explained by its consequences for image sampling, filtering, and the influence of depth noise.