English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Human perception and recognition of metric changes of part-based dynamic novel objects

Vuong, Q., Schultz, J., & Chuang, L. (2006). Human perception and recognition of metric changes of part-based dynamic novel objects. Poster presented at 29th European Conference on Visual Perception, St. Petersburg, Russia.

Item is

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Vuong, QC1, Author           
Schultz, J1, Author           
Chuang, L1, Author           
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              

Content

show
hide
Free keywords: -
 Abstract: The role of object parts is a key issue in object recognition. Here we investigated whether observers encode qualitative (eg straight versus curved part) or metric information of parts (eg curvature magnitude), and whether the information that is encoded can be affected by motion. To address these issues, we constructed a novel set of objects composed of parts that can vary metrically along different dimensions (eg tapering and bending) to create qualitatively different parts. In a same/different matching task, we presented two objects rigidly rotating in the same or different direction, and had observers judge whether these objects were the same or different. We varied the pair of objects along an ‘identity‘ axis by morphing between two exemplars. A cumulative Gaussian function explained the effect of morph level, suggesting that observers encoded metric information. There was a slight shift of the psychometric function for same versus different motion. Overall, our results suggest that observers are sensitive to metric information, even for objects with salient part structure. We are currently investigating with fMRI how object parts and motion influence neuronal object processing.

Details

show
hide
Language(s):
 Dates: 2006-08
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: URI: http://www.perceptionweb.com/abstract.cgi?id=v060406
BibTex Citekey: 4226
 Degree: -

Event

show
hide
Title: 29th European Conference on Visual Perception
Place of Event: St. Petersburg, Russia
Start-/End Date: -

Legal Case

show

Project information

show

Source

show