Currently I am an associate research scientist working with
Norma Graham
in the
Department of Psychology
at
Columbia University.
We study texture perception (or, rather, we use texture as a tool to
explore early processing in the visual system) and -- ocassionally --
we study light adaptation.
Papers
Adaptation of a contrast comparison level: A model
Norma Graham & S. Sabina Wolfson (in prep)
Contrast adaptation processes studied using visual patterns
in a temporal probed-sinewave paradigm
Norma Graham & S. Sabina Wolfson (in prep)
Two contrast-controlled adaptation processes: contrast normalization
and a shifting, rectifying contrast-comparison level
S. Sabina Wolfson & Norma Graham (submitted)
Two contrast adaptation processes in human vision: One new, one
old
Norma Graham & S. Sabina Wolfson (submitted)
An unusual kind of contrast adaptation: shifting a contrast
comparison level
S. Sabina Wolfson & Norma Graham (2007)
Journal of Vision, Vol 7, Num 8, Article 12, Pages 1-7
abstract (html) |
reprint (pdf 270K)
Exploring contrast-controlled adaptation processes in human vision (with
help from Buffy the Vampire Slayer)
Norma Graham & S. Sabina Wolfson (2007)
In Computational Vision in Neural and Machine Systems
Laurence R. Harris & Michael Jenkin (Eds.),
Cambridge University Press, pages 9-47
proofs (pdf 1.1M)
Forty-four years of studying light adaptation
using the probed-sinewave paradigm
S. Sabina Wolfson & Norma Graham (2006)
Journal of Vision, 6(10), 1026-1046
abstract (html) |
reprint (pdf 1.7M)
Contrast-response functions for the multifocal visual evoked potentials
(mfVEP): A test of a model relating V1 activity to mfVEP activity.
Donald C. Hood, Quraish Ghadiali, Jeanie C. Zhang, Norma V. Graham,
S. Sabina Wolfson, & Xian Zhang (2006)
Journal of Vision, 6(5), 580-593
abstract (html) |
reprint (pdf 850K)
Element-arrangement textures in multiple objective tasks
S. Sabina Wolfson & Norma Graham (2005)
Spatial Vision, 18(2), 209-226
abstract (html) |
reprint (pdf 350K)
Is there opponent-orientation coding in the second-order
channels of pattern vision?
Norma Graham & S. Sabina Wolfson (2004)
Vision Research, 44(27), 3145-3175
abstract (html) |
reprint (pdf 1M)
Processing in the probed-sinewave paradigm is likely retinal
S. Sabina Wolfson & Norma Graham (2001)
Visual Neuroscience, 18(6), 1003-1010
abstract (html) |
reprint (pdf 2.5M)
Comparing increment and decrement probes in the probed-sinewave
paradigm
S. Sabina Wolfson & Norma Graham (2001)
Vision Research, 41(9), 1119-1131
abstract (html) |
reprint (pdf 500K)
A note about preferred orientations at the first and second stages
of complex (second-order) texture channels
Norma Graham & S. Sabina Wolfson (2001)
Journal of the Optical Society of America A,
18(9), 2273-2281
abstract (html) |
reprint (pdf 500K)
Exploring the dynamics of light adaptation: the effects of varying the
flickering background's duration in the probed-sinewave paradigm
S. Sabina Wolfson & Norma Graham (2000)
Vision Research, 40(17), 2277-2289
abstract (html) |
reprint (pdf 500K)
Long range interactions between oriented texture elements
S. Sabina Wolfson & Michael S. Landy (1999)
Vision Research39(5), 933-945
abstract (html) |
reprint (pdf 1M)
Examining edge- and region-based texture analysis mechanisms
S. Sabina Wolfson & Michael S. Landy (1998)
Vision Research, 38(3), 439-446
abstract (html) |
reprint (pdf 750K)
Discrimination of orientation-defined texture edges
S. Sabina Wolfson & Michael S. Landy (1995)
Vision Research, 35(20), 2863-2877
abstract (html) |
reprint (pdf 1M)
Conferences
Two contrast-adaptation processes: One old, one new
S. Sabina Wolfson & Norma Graham (2008)
Vision Science Society
handout (pdf 900K)
Adaptable contrast comparison
Norma Graham & S. Sabina Wolfson (2007)
Sperling Festschrift Conference, University of California, Irvine
More about "Buffy adaptation"
S. Sabina Wolfson & Norma Graham (2007)
Vision Science Society
handout (pdf 800K)
Complex channels become more complex: Modeling a contrast adaptation
process
Norma Graham & S. Sabina Wolfson (2006)
Journal of Vision,
6(6), abstract 694
abstract (html)
Exploring contrast adaptation (with help from Buffy the Vampire
Slayer)
Norma Graham & S. Sabina Wolfson (2006)
Society of Experimental Psychologists
103rd Annual Meeting,
University of California, San Diego
A new (at least to us) kind of contrast adaptation
Norma Graham & S. Sabina Wolfson (2006)
Thirty-First Annual Interdisciplinary Conference, Teton Village,
Jackson Hole, Wyoming
Dynamics of contrast-gain controls in pattern vision
S. Sabina Wolfson & Norma Graham (2005)
Journal of Vision,
5(8), abstract 760
abstract (html) |
handout (pdf 800K)
Normalization and uncertainty effects in three objective tasks
using first-order and second-order textures
S. Sabina Wolfson, Norma Graham, & Oleg Slinin (2004)
Journal of Vision,
4(8), abstract 534
abstract (html) |
handout (pdf 1M)
Exploring the opponent structure of complex (second-order)
channels
S. Sabina Wolfson & Norma Graham (2003)
Journal of Vision,
3(9), abstract 615
abstract (html)
Monoptic versus dichoptic presentation in the probed-sinewave
paradigm
S. Sabina Wolfson, Norma Graham, Michael Krug, & Arusha Farahani (2001)
Invest Ophth & Vis Sci, 42(4), abstract #841, page S157
abstract (html)
A comparison of light adaptation results from 40 years of the
probed-sinewave paradigm
Norma Graham, S. Sabina Wolfson, & Jenifar Chowdhury (2001)
Invest Ophth & Vis Sci, 42(4), abstract #840, page S157
abstract (html) |
handout (pdf 500K)
Increment and decrement probes in the probed-sinewave paradigm
S. Sabina Wolfson, Norma Graham, & Jenifar Chowdhury (2000)
Invest Ophth & Vis Sci, 41(4), abstract #3788, page S712
abstract (html)
Rapid light adaptation: The effects of varying the
background's duration in the probe-sinewave paradigm
S. Sabina Wolfson & Norma Graham (1999)
Invest Ophth & Vis Sci, 40(4), abstract #247, page S46
abstract (html)
Long range interactions between texture elements
S. Sabina Wolfson & Michael S. Landy (1998)
Invest Ophth & Vis Sci, 39(4), abstract #3018, page S650
abstract (html)
Revealing edge and region-based texture mechanisms
S. Sabina Wolfson & Michael S. Landy (1995)
Invest Ophth & Vis Sci, 36(4), abstract #2200, page S476
abstract (html)
Modeling the discrimination of orientation-defined texture edges
S. Sabina Wolfson & Michael S. Landy (1994)
Invest Ophth & Vis Sci, 35(4), abstract #1907, page S1667
abstract (html)
Discrimination of orientation-defined texture edges
Michael S. Landy & S. Sabina Wolfson (1993)
Invest Ophth & Vis Sci, 34(4), abstract #584, page S819
abstract (html)
Teaching
Fall of 1998, Perception & Sensory Processes, Adjunct Assistant Professor, Columbia University
Fall 1997, Sensation and Perception, Teaching Assistant, New York University
Spring 1997, Statistics for the Behavioral Sciences, Teaching Assistant, New York University
Fall 1996, Sensation and Perception, Teaching Assistant, New York University
Spring 1996, Human Information Processing, Teaching Assistant, New York University
Fall 1995,
Sensation and Perception, Teaching Assistant,
New York University
History
2002-present, Associate Research Scientist, Columbia University, Psychology
2002-present, non-degree graduate classes, Columbia University, Urban Planning details about these classes
1999-2001, Post-Doctoral Research Fellow, Columbia University, Psychology
1998-1999, Post-Doctoral Research Scientist, Columbia University, Psychology
1992-1998, Ph.D., New York University, Cognition & Perception
1992-1995, M.S., New York University, Computer Science
1988-1991,
B.A.,
New York University,
Psychology
Contact
sabina(at)psych.columbia.edu
sabinawolfson(at)yahoo.com
sabinawolfson(at)gmail.com
sabina(at)cns.nyu.edu
Department of Psychology
Columbia University
Mail Code 5501
New York, NY 10027
last updated: April 2008