Document Detail


Spatial and temporal stimulus variants for multifocal pupillography of the central visual field.
MedLine Citation:
PMID:  20951157     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Multifocal pupillographic objective perimetry (mfPOP) has the advantage of being a non-invasive, objective method for measuring up to 88 visual field responses from both eyes concurrently within 5min. To date mfPOP has been used to assess the peripheral visual field. Here we examine the practicality of mfPOP for testing the macular region of the visual field. This study examines variations in temporal presentation rate, spatial stimulus layout and luminance intensity in a group of normal subjects to determine the optimal parameters for achieving high signal to noise ratios for a macular version of mfPOP. Responses to multifocal stimuli comprising 24 or 44 stimulus regions per eye were measured dichoptically achieving median signal to noise ratios of 2.47 z-score units. Long stimulus presentation intervals combined with 24 region non-overlapping layouts produced the largest contraction amplitudes and shortest response delays.
Authors:
Faran Sabeti; Andrew C James; Ted Maddess
Related Documents :
22772297 - Vector transmission matrix for the polarization behavior of light propagation in highly...
12120717 - Advantages and caveats when recording steady-state responses to multiple simultaneous s...
16812007 - Stimulus generalization from feeder to response key in the acquisition of autoshaped pe...
3253677 - Circular vection is independent of stimulus eccentricity.
21449647 - Voluntary modification of the rotatory induced vestibulo-ocular reflex by fixating imag...
25402037 - Ultra-thin circular polarization analyzer based on the metal rectangular split-ring res...
Publication Detail:
Type:  Journal Article     Date:  2010-10-14
Journal Detail:
Title:  Vision research     Volume:  51     ISSN:  1878-5646     ISO Abbreviation:  Vision Res.     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-01-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  303-10     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Ltd. All rights reserved.
Affiliation:
ARC Centre of Excellence in Vision Science and Centre for Visual Sciences, Research School of Biology, The Australian National University, Canberra ACT 0200, Australia.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Converging evidence for diverging pathways: Neuropsychology and psychophysics tell the same story.
Next Document:  Endogenous nitric oxide enhances the light-response of cones during light-adaptation in the rat reti...