We are currently recruiting new PhD students and postdocs to join the lab. Students, please apply to the doctoral program in either Experimental Psychology/Neuroscience or Clinical Psychology and select Dr. Greenberg as your choice for major professor. Postdocs can contact Dr. Greenberg by email directly. We are also always searching for exceptional undergraduate RAs interested in learning about cognitive psychology/neuroscience. Please explore this website for further details and email Dr. Greenberg directly with specific questions or for more information.
Our Team (as of July, 2017)!
(mouse-over image for some fun!)
Front Row (kneeling) : Adam, Dr. Greenberg, Hannah
Back Row (from Left): AnnDee, Samantha, Erin, Melissa, Dick, Leah, Chris, Mrinmayi, Maddie, Souriyo
Lab Photo Archive
SNAP Lab News:​
  • We are thrilled to announce that Gennadiy Gurariy will be joining the lab as a postdoctoral researcher in late 2017 after defending his Dissertation! Gena is completing his PhD at the University of Nevada-Reno in the lab of Gideon Caplovitz. Welcome, Gena!!! (9/20/17)
  • Congratulations to Adam Barnas who was selected for a travel award to attend the 2017 OPAM meeting! Excellent recognition of all your hard work, Adam. (9/15/17)
  • Three of our undergraduates were awarded SURF grants to continue their work in the lab in Fall, 2017. Awesome job, Souriyo, Hannah, & Erin! (9/14/17)
  • As the Fall term begins, we welcome one new RA, Cassy Doolittle, along with the return of Erin, Hannah, AnnDee, & Souriyo. We also welcome our new grad student, Chris Reynolds. You can learn more about each of them on our SNAPshots page. (9/5/17)
  • Our summer incoming FRESHMEN, Maddie & Erin, did an excellent job presenting their projects today at the 2017 UR@UWM poster session. A fantastic photo (snapped by Adam Barnas) can be found here! (8/4/17)
  • Dr. Greenberg led a facilitated discussion and fun Q/A of perception and the brain following a screening of the PBS program "The Brain with David Eagleman" at the Elm Grove, WI Public Library; details here. (6/27/17)
  • The SNAP Lab had 4 presentations at the 2017 Vision Sciences Society Meeting in Florida: (5/25/15)
          R. Dubbelde & A.S. Greenberg (2017). Proportional Context of Distracters Alters Top-Down Sets During
               Contingent Attention Capture.
          S. Al-Janabi, N. Strommer-Davidovich, S. Gabay, & A.S. Greenberg (2017). Object-Based Attentional Selection
               Emerges Early in Visual Cortex for Object Percepts of Varying Strength.
           A.J. Barnas & A.S. Greenberg (2017). Target Location, Rather than Object Location, Drives the Object-Based
               Attention Shift Direction Anisotropy.
          A.S. Greenberg & A. Stauffacher (2017). Trump Makes Us "See Red"; Clinton Makes Us "Feel Blue".
  • NEW GRANT: The collaborative team of Dr. Greenberg, Dr. Huddleston, and Dr. DeYoe have been awarded a 2017 Research Team Development Award from the UWM Graduate School to develop a large-scale, big data project on Attention. (5/22/2017)
  • Congratulations to SNAP Lab grad student Mrimayi Kulkarni who has been selected to receive a 2017 Summer Research Fellowship from the Psychology Department for a project titled "Using Population Receptive Fields to Estimate the Effects of Attention on the Auditory Cortex". Excellent job, Mrinmayi! (5/7/2017)
  • We're very excited to learn that RAs Hannah Sallmann, Samantha Stelpflug, & Souriyo Dishak will all be continuing their work in the SNAP Lab this summer as SURF grantees. (4/20/2017)
  • Another SNAP Lab undergraduate, Dick Dubbelde, will pursue a PhD in Cognitive Neuroscience; Dick will begin at George Washington University in Fall, 2017 in the lab of Sarah Shomstein. Congratulations, Dick! (3/22/2017)
  • Big Congrats to former SNAP Lab undergraduate and lab manager, Grace Nicora, who will begin a PhD program in Cognitive Neuroscience at the University of Utah in Fall, 2017 in the lab of Trafton Drew!!! (3/15/2017)
  • The SNAP Lab will have 4 presentations at the 2017 Vision Sciences Society Annual Meeting (St. Pete Beach, FL) in May; more details available here. (2/10/17)
  • Congratulations to undergraduate RAs Hannah Sallmann and Dick Dubbelde who will both continue their work in the SNAP Lab as SURF grantees during Spring, 2017! (1/21/2017)
  • NEW GRANT: The SNAP Lab was awarded a 3 year grant from the Greater Milwaukee Foundation to study how attention is affected by chemotherapy in breast cancer patients! (12/16/16)
  • A very busy week for the SNAP Lab during which we had 4 presentations at 4 different conferences. Congrats to Shahd, Mrinmayi, Adam B., & Grace who each did a fantastic job: (11/20/16)
          S. Al-Janabi, N. Strommer-Davidovich, S. Gabay, & A.S. Greenberg (2016). Object-Based Attention Acts Upon
               Degraded Object Representations in Early Visual Cortex. Society for Neuroscience Meeting, San Diego, CA.
          M. Kulkarni, K. Potkonjak, R. Randall, & A.S. Greenberg (2016). Music Expertise Alters the Perception of Auditory
               Objects. Auditory Perception, Cognition, & Action Meeting (APCAM), Boston, MA.
          A.J. Barnas & A.S. Greenberg (2016). The Object-Based Attention Shift Direction Anisotropy May Depend On
               Expectations About Shifting Across Visual Field Meridians. Workshop on Object Perception, Attention, & Memory
               (OPAM), Boston, MA.
          G.L. Nicora & A.S. Greenberg (2016). Object Closure Affects the Strength of Object-Based Attentional Filtering.
               Psychonomic Society Annual Meeting, Boston, MA.
  • Dr. Greenberg has been elected a Fellow of the Psychonomic Society. See you at the 2016 annual meeting in Boston later this month. (11/3/2016)
  • Congratulations to undergraduate RAs Dick Dubbelde and Hannah Sallmann who were each awarded a SURF grant to continue their work in the SNAP Lab during Fall, 2016! (9/9/16)
  • We are thrilled to welcome our new Lab Manager, Leah Stoiber, whom you can read more about on our SNAPshots page. Leah has a wealth of experience as project coordinator for a large grant with UWM Psychology's own Dr. Diane Reddy. (8/22/16)
  • SNAP Lab summer student, Alysan Stauffacher (an incoming Freshman!), gave an excellent presentation at the UWM Undergraduate Summer Research Symposium today. (8/5/16)
  • Nice feature story on the UWM home page (the UMW REPORT) about our recent work on auditory objects and music. (7/28/16)
  • NEW PUBLICATION: We have a new paper on purely voluntary shifts of spatial attention that has been accepted for publication in Attention, Perception, & Psychophysics. (6/1/16)​​​
​          L. Gmeindl, Y-C Chiu, M. Esterman, A.S. Greenberg, S. Courtney & S. Yantis. (2016). Tracking the Will to Attend:
​               Cortical Activity Indexes Self-Generated, Voluntary Shifts of Attention, Attention, Perception, & Psychophysics.
  • Big congratulations to SNAP Lab undergrad Grace Nicora who received her BA in Psychology from UWM today! Grace will be staying on as our part-time lab manager through the summer. (5/22/16)
  • NEW PUBLICATION: A new paper on retinotopy within object-selective cortex has been accepted for publication in Neuropsychologia! (5/20/16)
​          F. Uyar, S. Shomstein, A.S. Greenberg, M. Behrmann (in press). Retinotopic Information Interacts with Category
​               Selectivity in Human Ventral Cortex. Neuropsychologia.
  • The SNAP Lab had 2 presentations at the 2016 Vision Sciences Society Meeting in Florida; photos here: (5/15/15)
          A.J. Barnas & A.S. Greenberg (2016). Object-Based Attention Shift Direction Efficiency: Behavior and a Model.
          S. Al-Janabi, N. Strommer-Davidovich, S. Gabay, & A.S. Greenberg (2016). Perceptual Completion Alters the
               Cortical Level at which Object-Based Attentional Selection is Evident.
  • NEW PUBLICATION: Our paper comparing saccade latency & manual keypress RT in object-based attention has been accepted for publication in Attention, Perception, & Psychophysics. (5/4/16)
          Senturk, G, Greenberg, AS, & Liu, T. (2016). Saccade Latency Indexes Exogenous and Endogenous Object-Based
               Attention, Attention, Perception, & Psychophysics.
  • Congratulations to SNAP Lab undergraduate Dick Dubbelde who was awarded a SURF grant to continue his work as an RA in the lab during the Summer of 2016! (5/4/16)
  • NEW PUBLICATION: Our paper on the boundary conditions of object-based attention has been accepted for publication in Attention, Perception, & Psychophysics. Congrats to Shahd! (4/26/16)
          Al-Janabi, S & Greenberg, AS (2016). Target-Object Integration, Attention Distribution, and Object Orientation
               Interactively Modulate Object-Based Selection, Attention, Perception, & Psychophysics.
  • We had two SNAP Lab undergraduates, Grace & Dick, who did a fantastic job presenting their posters at the UWM Research Symposium today. Congrats to Grace, who won an award for Outstanding Poster Presentation! (4/29/15)
          G. Nicora & A.S. Greenberg (2016). Object Closure Affects Attentional Filtering of Flanking Distracters.
         R. Dubbelde & A.S. Greenberg (2016). Feature-Based Contingent Attention Capture is Altered by Context.
  • NEW PUBLICATION: Our paper on the effects of visual field meridians on object-based attention has been accepted for publication in Attention, Perception, & Psychophysics. Congrats to Adam Barnas! (4/13/16)
          Barnas, AJ & Greenberg, AS (2016). Visual Field Meridians Modulate the Reallocation of Object-Based
               Attention, Attention, Perception, & Psychophysics.
  • NEW GRANT: The SNAP Lab was awarded a UWM Research Growth Initiative (RGI) grant to study attentional selection in the auditory domain! More info here. (3/22/16)
  • NEW GRANT: We are involved in a new grant from the MCW Clinical & Translational Science Institute in collaboration with Wendy Huddleston (Kinesiology) and Ted DeYoe (Radiology @ MCW) to study "Cortical Structure and Function as Possible Mediators of Performance on an Attention Task" (2/10/16)
  • Dr. Greenberg and SNAP Lab postdoc, Shahd Al-Janabi, just returned from visiting the lab of our collaborator (Dr. Shai Gabay) for two weeks at the University of Haifa, Israel. We had an excellent visit and made fantastic progress on joint projects studying Object-based Attention in humans and archer fish! (1/23/16)
  • Congratulations to SNAP Lab undergraduates Dick Dubbelde & Grace Nicora who were both awarded SURF grants to continue their work as RAs in the lab during the Spring, 2016 semester! (1/6/16)
  • The SNAP Lab presented 4 posters in Chicago at Psychonomics 2015 (& satellite meetings): (11/17/15)
          M. Kulkarni K. Potkonjak, R. Randall, & A.S. Greenberg (2015). Formal music education alters perceived
               musicality of pitch sequences. 14th Annual Auditory Perception, Cognition, & Action Meeting (APCAM).
          S. Al-Janabi & A.S. Greenberg (2015). Target-object integration interacts with object orientation during object-
               based selective attention. 23nd Annual Workshop on Object Perception, Attention, and Memory (OPAM).
          A.J. Barnas & A.S. Greenberg (2015). Object-based attention is oriented more efficiently along the horizontal
               meridian than the vertical meridian. 23rd Annual Workshop on Object Perception, Attention, & Memory.
          G. Nicora & A.S. Greenberg (2015). The strength of object-based attentional selection is affected by closure.
               2015 Psychonomic Society Annual Meeting.
  • Dr. Greenberg is quoted in a short piece about Amusia here. (10/28/15)
  • The SNAP Lab had 1 oral presentation at the 2015 Society for Neuroscience Annual Meeting in Chicago: (10/19/15)
          A.S. Greenberg & R. Randall (2015). The role of auditory cortex in mid-level audition.
  • We're pleased to welcome a new undergraduate RA into the SNAP Lab for the Fall, 2015 semester (Dick Dubbelde) and we're sad to say goodbye to two undergraduate RA's: Nicole Kashian (as she begins her Nursing school journey) and Mary Liz Kim (who returns to her studies at Vanderbilt University). (9/7/15)
  • Congratulations to SNAP Lab undergraduate Grace Nicora who has been awarded a SURF to continue her project on Object-Based Attention and Perceptual Grouping during Fall, 2015! (8/25/15)
  • Summer, 2015 will mark some expansion of the SNAP Lab with two visiting grad students (Jonas Potthoff & Nofar Strommer), a visiting undergraduate RA (Mary Liz Kim), and a new full-time PhD student (Mrinmayi Kulkarni). Please visit our People page for more info. (7/1/15)
  • Congratulations to SNAP Lab undergraduates Grace Nicora & Nicole Kashian who both were granted SURF awards to conduct summer research in the lab! (5/30/15)
  • The SNAP Lab had 3 presentations at the 2015 Vision Sciences Society Meeting in St. Pete's Beach, FL; photos here: (5/20/15)
          S. Al-Janabi & A.S. Greenberg (2015). Target 'on' or 'of' an Object? It Does Not Matter for Object-Based Attention.
          A.J. Barnas & A.S. Greenberg (2015). Shifts of Object-Based Attention Differ Across Visual Field Meridians.
          G. Senturk, A.S. Greenberg, T. Liu (2015). Object-Based Attention Affects Saccade Latency.
  • Big congrats to SNAP Lab grad student Adam Barnas for being awarded a UWM Psychology Summer Research Fellowship for 2015! (5/11/15)
  • Please view photos here of two SNAP Lab undergraduates, Grace & Katie, who did a fantastic job presenting their posters at the UW System Symposium at UW-Milwaukee today: (4/24/15)
          G. Nicora & A.S. Greenberg (2015). The Role of Closure in Object-Based Attentional Selection.
          K. Potkonjak & A.S. Greenberg (2015). The Effects of Musical Training on Perceived Auditory Object Musicality.
  • Congratulations to SNAP Lab postdoc, Shahd Al-Janabi, who returned to Australia to officially accept her PhD diploma from Macquarie University! (4/6/15)
  • The SNAP Lab took a mid-semester break and attended a Milwaukee Admirals hockey game (3/25/15). See photos here.
  • NEW PUBLICATION: New paper on Object-Based Attention and Visual Search, view here (3/15/15):
          A.S. Greenberg, M. Rosen, E. Cutrone, M. Behrmann (in press). The Effects of Visual Search Efficiency on
               Object-Based Attention, Attention, Perception, & Psychophysics.
  • Dr. Greenberg was recently interviewed by Milwaukee's CBS News affiliate about the science behind "the dress that broke the internet" - view the web clip here. (2/27/15)
  • Some personnel changes in the SNAP Lab for 2015. Rachel Bogatay has departed to pursue her undergraduate degree in Education. And, we're very excited to welcome undergraduate RA Nicole Kashian and special volunteer Jonathan Reich. You can learn about all lab members here. (1/19/15)
  • Dr. Greenberg gave a talk at the Medical College of Wisconsin Biophysics Seminar on the lab's most recent neuroimaging findings, hosted by Dr. Ted DeYoe. (1/16/15)
  • NEW GRANT: The lab has received a Daniel M. Soref Research Grant from the Medical College of Wisconsin to study "Tonotopic Mapping & Cortical Magnification Estimation at 7 Tesla". (12/18/14)
  • Dr. Greenberg presented the lab's newest work at the University of Wisconsin-Madison in a Special Colloquium of the Psychology department hosted by Dr. Brad Postle. (11/8/14)
  • Dr. Greenberg gave a talk at Michigan State University as part of their 2014 Cognitive Science Forum, hosted by Dr. Taosheng Liu. (10/9/14)
  • We're very excited to welcome Rachel Bogatay to the SNAP Lab as our newest undergraduate RA! (10/8/14)
  • We are extremely pleased to announce our new lab members. Welcome to the SNAP Lab! (7/12/14)
          Shahd Al-Janabi (postdoctoral researcher)
          Adam Barnas (PhD student)
          Grace Nicora (undergraduate RA)
  • NEW GRANT: Dr. Greenberg has been awarded a 2-year grant from the US-Israel Binational Science Foundation to study "The Neural Basis of Object-Guided Attention and its Evolutionary Origin". (6/25/14)
  • Welcome to visiting undergraduate Dan Evans. Dan attends Butler University and has joined the lab as a RA for the summer. (6/2/14)
  • Congratulations to our undergraduate RAs, Katherine Potkonjak and Matthew Bach, who both received SURF awards for the summer. (6/2/14)
  • We're very excited to welcome Tajsha Koester to the SNAP Lab as our new Lab Manager. (5/5/14)
  • Our Lab Manager, Dan Hayes, has moved on to other academic pursuits. Good luck in the future. (5/2/13)
  • Best of luck to our Visiting Scholar, Erik Peterson, who has just left UWM to join the newly established lab of Bradley Voytek at UC-San Diego. (4/16/14)
  • We'd like to congratulate one of our undergraduate RAs, Katherine Potkonjak, on her excellent performance at her Senior Tuba Recital. View photos of her performance here. (4/12/14)
  • Dr. Greenberg gave a talk at the Carthage College Divisions of Natural and Social Sciences Colloquium on the lab's most recent visual attention findings, hosted by Dr. Leslie Cameron. (2/24/14)
  • We'd like to welcome Dr. Erik Peterson who has joined the lab as a Visiting Scholar for the Spring, 2014 semester. Learn more about Dr. Peterson here. (2/13/14)
  • Welcome to undergraduate Katherine Potkonjak who has joined the lab as a RA. Learn more about Katie here. (1/21/14)
  • The SNAP Lab had two presentations at the 2013 Society for Neuroscience Annual Meeting in San Diego: (11/12/13)
          A.S. Greenberg, R. Randall (2013). Functionally Defining the Neural Correlates of Music Processing, poster at the
               Society for Neuroscience 43rd Annual Meeting, San Diego, CA.
          S. Shomstein, F. Uyar, A.S. Greenberg, M. Behrmann (2013). Improving Quality of Sensory Representations with
               Prismatic Adaptation, poster at the Society for Neuroscience 43rd Annual Meeting, San Diego, CA.
  • Dr. Greenberg was the invited speaker at the Psychology Department Colloquium at George Mason University in Fairfax, Virginia, hosted by Dr. Raja Parasuraman. (10/23/13)
  • Dr. Greenberg gave a hands-on talk at the UWM Art History Gallery on the perceptual phenomena underlying Op Art; we also learned about the history of the Op Art movement from UWM Art History Professor Kenneth Bendiner. Please click here for more info. and some photos. (10/10/13)
  • Welcome to undergraduates Matthew Bach & Sarah Herrington who have both joined the lab as RAs; learn more about Sarah & Matt here. (September, 2013)
  • NEW PUBLICATION on attention in the auditory domain; abstract and link available here:
          A. Greenwald, A.S. Greenberg, J.P. Rauschecker (2014). Are You Listening? Brain Activation Associated with
               Sustained Nonspatial Auditory Attention in the Presence and Absence of Stimulation, Human Brain Mapping.
  • Welcome Daniel Hayes who has joined the lab as a full-time RA & Lab Manager; learn more about Dan here. (8/19/13)
  • Talk presented at the 2013 Biennial Meeting of the Society for Music Perception & Cognition: (8/8/13)
          R. Randall, A.S. Greenberg (2013). Principal Components Analysis of the Perception of Musicality in Pitch
               Sequences, talk presented at the 2013 Biennial Meeting of the Society for Music Perception and Cognition,
               Toronto, Canada.
  • Dr. Greenberg has joined the University of Wisconsin-Milwaukee Department of Psychology and Neuroscience Program as an Assistant Professor; he established the Sensory Neuroscience, Attention, & Perception Laboratory (SNAP Lab). (August, 2013)