Masks reveal processing time for alignment across space

Sarah J. Waugh

doi:10.1016/j.visres.2007.05.009

Masks reveal processing time for alignment across space

Research output: Contribution to journal › Article › peer-review

Abstract

Does spatial separation incur a processing time requirement before precise alignment judgements can occur? Alignment thresholds for separated lines are measured for exposure durations from 27 to 500 ms, with and without post-masks. The effect of masks on visibility is controlled. Unlike without a post-mask, with an effective post-mask, alignment thresholds improve substantially with time, i.e. in square-root fashion. Alignment across space may be important for further shape analysis. Threshold improvement is probably not explained by a spatial scale shift of visual analysis over time. A higher-order collection stage appears to refine relative position information for up to 200 ms.

Original language	English
Pages (from-to)	2305-2313
Number of pages	9
Journal	Vision Research
Volume	47
Issue number	17
Early online date	5 Jul 2007
DOIs	https://doi.org/10.1016/j.visres.2007.05.009
Publication status	Published - 1 Aug 2007
Externally published	Yes

Access to Document

10.1016/j.visres.2007.05.009Licence: Other

Cite this

@article{e1c2fa123fa74b53bc3de4df7a5f08b5,

title = "Masks reveal processing time for alignment across space",

abstract = "Does spatial separation incur a processing time requirement before precise alignment judgements can occur? Alignment thresholds for separated lines are measured for exposure durations from 27 to 500 ms, with and without post-masks. The effect of masks on visibility is controlled. Unlike without a post-mask, with an effective post-mask, alignment thresholds improve substantially with time, i.e. in square-root fashion. Alignment across space may be important for further shape analysis. Threshold improvement is probably not explained by a spatial scale shift of visual analysis over time. A higher-order collection stage appears to refine relative position information for up to 200 ms.",

keywords = "Spatial masking, Spatial separation, Temporal integration, Time, Visual alignment",

author = "Waugh, {Sarah J.}",

note = "Funding Information: This research was supported by Australian Research Council Grants F79531427 and A49531427 and the Anglia Ruskin University Research Capacity Fund. The author would like to acknowledge the support and suggestions of the two anonymous reviewers. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2007",

month = aug,

day = "1",

doi = "10.1016/j.visres.2007.05.009",

language = "English",

volume = "47",

pages = "2305--2313",

journal = "Vision Research",

issn = "0042-6989",

publisher = "Elsevier Limited",

number = "17",

}

TY - JOUR

T1 - Masks reveal processing time for alignment across space

AU - Waugh, Sarah J.

N1 - Funding Information: This research was supported by Australian Research Council Grants F79531427 and A49531427 and the Anglia Ruskin University Research Capacity Fund. The author would like to acknowledge the support and suggestions of the two anonymous reviewers. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2007/8/1

Y1 - 2007/8/1

N2 - Does spatial separation incur a processing time requirement before precise alignment judgements can occur? Alignment thresholds for separated lines are measured for exposure durations from 27 to 500 ms, with and without post-masks. The effect of masks on visibility is controlled. Unlike without a post-mask, with an effective post-mask, alignment thresholds improve substantially with time, i.e. in square-root fashion. Alignment across space may be important for further shape analysis. Threshold improvement is probably not explained by a spatial scale shift of visual analysis over time. A higher-order collection stage appears to refine relative position information for up to 200 ms.

AB - Does spatial separation incur a processing time requirement before precise alignment judgements can occur? Alignment thresholds for separated lines are measured for exposure durations from 27 to 500 ms, with and without post-masks. The effect of masks on visibility is controlled. Unlike without a post-mask, with an effective post-mask, alignment thresholds improve substantially with time, i.e. in square-root fashion. Alignment across space may be important for further shape analysis. Threshold improvement is probably not explained by a spatial scale shift of visual analysis over time. A higher-order collection stage appears to refine relative position information for up to 200 ms.

KW - Spatial masking

KW - Spatial separation

KW - Temporal integration

KW - Time

KW - Visual alignment

UR - http://www.scopus.com/inward/record.url?scp=34547106076&partnerID=8YFLogxK

U2 - 10.1016/j.visres.2007.05.009

DO - 10.1016/j.visres.2007.05.009

M3 - Article

C2 - 17614112

AN - SCOPUS:34547106076

SN - 0042-6989

VL - 47

SP - 2305

EP - 2313

JO - Vision Research

JF - Vision Research

IS - 17

ER -

Masks reveal processing time for alignment across space

Abstract

Access to Document

Other files and links

Fingerprint

Cite this