Please use this identifier to cite or link to this item:

TitleAcceleration patterns in the perception of biological motion
Author(s)Aragão, Bruno
Santos, Jorge A.
Castelo-Branco, Miguel
Issue date23-Aug-2010
PublisherPion Ltd.
Abstract(s)A lot of natural stimuli are characterized by acceleration patterns. However, available studies are inconclusive about the importance of these patterns on visual perception. Empirical findings seems to both sustain that acceleration patterns might have, or might have not, a significant role on visual perception [Runeson, 1974 Psychological Research 37 3-23; McIntyre et al, 2001 Nature Neuroscience 4(7) 693-694]. In a recent study Chang and Troje [2009 Journal of Vision 9(1) 19-17] stressed the role of acceleration patterns for the perception of biological motion. Nevertheless, we have a limited understanding about the implications of these patterns for translational stimuli. The present study aimed to investigate how acceleration patterns influence the perception of biological translational motion. We manipulated the velocity of the translational component (maintaining spatial characteristics). This allowed us to create a continuum of stimuli that ranged from natural motion to constant velocity. When two stimuli are presented simultaneously participants are asked to choose which appears more natural. Data shows that subjects choose the stimulus closest to the natural motion—biological motion. Results reveal a great accuracy in detecting the stimulus closest to biological motion, which suggests that acceleration patterns are important in the perception of translational biological motion.
Publisher version
AccessOpen access
Appears in Collections:CIPsi - Comunicações

Files in This Item:
File Description SizeFormat 
ecvp10.pdfDocumento principal36,75 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID