| The predictive power of trajectory motion. | |
| | |
MedLine Citation:
|
PMID: 16153677 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
When the central region of an obliquely oriented line is bisected by a wide, vertical opaque occluder, observers misperceive the two line segments as being misaligned (the Poggendorff illusion). If the oblique line segment is replaced with a spot moving on an oblique trajectory, little if any misalignment is perceived. This accurate alignment of oblique segments depends upon the consistent motion of the dot along the oblique trajectory and not other temporal or spatial characteristics of the motion-defined segments since random plotting of the dot along each oblique segment resulted in robust misalignment. The nullification of the Poggendorff illusion was also obtained if only one of the segments was defined by a moving spot so long as the spot moved in a direction that 'pointed' to the static segment. Moreover, if the occluder boundary was defined by rows of vertically moving dots, was filled with vertically moving dots or was a real (cardboard) occluder, the motion-defined oblique segments were still perceived to be aligned with little error, consistent with the unimpaired detection of a trajectory dot in noise interrupted by similar occluders [Watamaniuk, S. N. J. & McKee, S. P. (1995). 'Seeing' motion behind occluders. Nature, 377, 729-730]. The results are interpreted as evidence that trajectory motion produces a cascade of activity in appropriately aligned motion detectors, in the direction of motion, that continues after the moving object has been occluded to produce a prediction of where the moving object should reappear. |
| | |
Authors:
|
Scott N J Watamaniuk |
Related Documents
:
|
15537817 - Temporal dynamics of direction tuning in motion-sensitive macaque area mt. 15856207 - Perceived motion direction during smooth pursuit eye movements. 8229817 - Observations on human tactile directional sensibility. 10070207 - Does symmetry structure facilitate the depth separation between stereoscopically overla... 11177617 - Oculomanual coordination in tracking of pseudorandom target motion stimuli. 8065697 - Field quadrant asymmetry in perimetric thresholds: results of normal and red-green-defi... |
Publication Detail:
|
Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
|
Title: Vision research Volume: 45 ISSN: 0042-6989 ISO Abbreviation: Vision Res. Publication Date: 2005 Nov |
Date Detail:
|
Created Date: 2005-10-03 Completed Date: 2006-02-09 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0417402 Medline TA: Vision Res Country: England |
Other Details:
|
Languages: eng Pagination: 2993-3003 Citation Subset: IM |
Affiliation:
|
Department of Psychology, Wright State University, Dayton, OH 45435, USA. scott.watamaniuk@wright.edu |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Humans Motion Perception / physiology* Optical Illusions / physiology* Pattern Recognition, Visual / physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Perception of motion trajectory of object from the moving cast shadow in infants.
Next Document: Exogenous attentional selection of transparent superimposed surfaces modulates early event-related p...