Contribution of configural information in a direction discrimination task

evidence using a novel masking paradigm

Lawrie S. McKay, David R. Simmons, Phil McAleer, Frank E. Pollick

Research output: Contribution to journalArticle

Abstract

Understanding how structure and motion information contribute to the perception of biological motion is often studied with masking techniques. Current techniques in masking point-light walkers typically rely on adding surrounding masking dots or altering phase relations between joints. Here, we demonstrate the use of novel stimuli that make it possible to determine the noise level at which the local motion cues mask the opposing configural cues without changing the number of overall points in the display. Results show improved direction discrimination when configural cues are present compared to when the identical local motion signals are present but lack configural information.
Original languageEnglish
Pages (from-to)2503-2508
Number of pages6
JournalVision Research: An International Journal for Functional Aspects of Vision
Volume49
Issue number20
DOIs
Publication statusPublished - 15 Oct 2009
Externally publishedYes

Fingerprint

Cues
Walkers
Motion Perception
Masks
Noise
Joints
Light
Direction compound
Discrimination (Psychology)

Keywords

  • Biological Motion
  • Form
  • Masking
  • Point-light motion

Cite this

@article{0bcfd999677c4b9aabf1309d595dace8,
title = "Contribution of configural information in a direction discrimination task: evidence using a novel masking paradigm",
abstract = "Understanding how structure and motion information contribute to the perception of biological motion is often studied with masking techniques. Current techniques in masking point-light walkers typically rely on adding surrounding masking dots or altering phase relations between joints. Here, we demonstrate the use of novel stimuli that make it possible to determine the noise level at which the local motion cues mask the opposing configural cues without changing the number of overall points in the display. Results show improved direction discrimination when configural cues are present compared to when the identical local motion signals are present but lack configural information.",
keywords = "Biological Motion, Form, Masking, Point-light motion",
author = "McKay, {Lawrie S.} and Simmons, {David R.} and Phil McAleer and Pollick, {Frank E.}",
year = "2009",
month = "10",
day = "15",
doi = "10.1016/j.visres.2009.08.008",
language = "English",
volume = "49",
pages = "2503--2508",
journal = "Vision Research: An International Journal for Functional Aspects of Vision",
issn = "0042-6989",
publisher = "Elsevier B.V.",
number = "20",

}

Contribution of configural information in a direction discrimination task : evidence using a novel masking paradigm. / McKay, Lawrie S.; Simmons, David R.; McAleer, Phil; Pollick, Frank E.

In: Vision Research: An International Journal for Functional Aspects of Vision, Vol. 49, No. 20, 15.10.2009, p. 2503-2508.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Contribution of configural information in a direction discrimination task

T2 - evidence using a novel masking paradigm

AU - McKay, Lawrie S.

AU - Simmons, David R.

AU - McAleer, Phil

AU - Pollick, Frank E.

PY - 2009/10/15

Y1 - 2009/10/15

N2 - Understanding how structure and motion information contribute to the perception of biological motion is often studied with masking techniques. Current techniques in masking point-light walkers typically rely on adding surrounding masking dots or altering phase relations between joints. Here, we demonstrate the use of novel stimuli that make it possible to determine the noise level at which the local motion cues mask the opposing configural cues without changing the number of overall points in the display. Results show improved direction discrimination when configural cues are present compared to when the identical local motion signals are present but lack configural information.

AB - Understanding how structure and motion information contribute to the perception of biological motion is often studied with masking techniques. Current techniques in masking point-light walkers typically rely on adding surrounding masking dots or altering phase relations between joints. Here, we demonstrate the use of novel stimuli that make it possible to determine the noise level at which the local motion cues mask the opposing configural cues without changing the number of overall points in the display. Results show improved direction discrimination when configural cues are present compared to when the identical local motion signals are present but lack configural information.

KW - Biological Motion

KW - Form

KW - Masking

KW - Point-light motion

U2 - 10.1016/j.visres.2009.08.008

DO - 10.1016/j.visres.2009.08.008

M3 - Article

VL - 49

SP - 2503

EP - 2508

JO - Vision Research: An International Journal for Functional Aspects of Vision

JF - Vision Research: An International Journal for Functional Aspects of Vision

SN - 0042-6989

IS - 20

ER -