17th Annual Dinner and Demo Night

Monday, May 20, 2019, 6:00 – 10:00 pm

Beach BBQ: 6:00 – 8:00 pm, Beachside Sun Decks and limited indoor seating in Banyan Breezeway
Demos: 7:00 – 10:00 pm, Talk Room 1-2, Royal Tern, Snowy Egret, Compass, Spotted Curlew and Jacaranda Hall

Please join us Monday evening for the 17th Annual VSS Dinner and Demo Night, a spectacular night of imaginative demos solicited from VSS members. The demos highlight the important role of visual displays in vision research and education. This year’s Demo Night will be organized and curated by Gideon Caplovitz, University of Nevada, Reno; Karen Schloss, University of Wisconsin; Gennady Erlikhman, University of Nevada, Reno; and Benjamin Wolfe, MIT.

Demos are free to view for all registered VSS attendees and their families and guests. The Beach BBQ is free for attendees, but YOU MUST WEAR YOUR BADGE to receive dinner. Guests and family members must purchase a VSS Friends and Family Pass to attend the Beach BBQ. You can register your guests at any time at the VSS Registration Desk, located in the Grand Palm Colonnade. Guest passes may also be purchased at the BBQ event, beginning at 5:45 pm.

The following demos will be presented from 7:00 to 10:00 pm, in Talk Room 1-2, Royal Tern, Snowy Egret, Compass, Spotted Curlew and Jacaranda Hall:

For the Last Time: The Ever-Popular Beuchet Chair

Peter Thompson, Rob Stone, and Tim Andrews, University of York

A favorite at demo Night for many years, the Beuchet chair is back for one last hurrah. The two parts of the chair are at different distances and the visual system fails to apply size constancy appropriately. The result is people can be shrunk or made giants.

Paradoxical impact of memory on color appearance of faces

Rosa Lafer-Sousa, MIT

What is the function of color vision? In this demo we impair retinal mechanisms of color using monochromatic sodium light, and probe memory colors for familiar objects in a naturalistic setting. We showcase a surprising finding: faces, and only faces, provoke a paradoxical memory color, providing evidence that color contributes to face encoding and social communication.

Immersive and long lasting afterimages – experiences of altered self

Daw-An Wu, California Institute of Technology

Dark Adaptation + Bright Flashes = Rod Afterimages!

Shikaku no Mori: gamified vision tests

Kenchi Hosokawa, Kazushi Maruya, and Shin’ya Nishida, NTT Communication Science Laboratories

We gamified several vision tests. Those games can be played in a short time (~ 3 minutes) and with a more entertained way. Test sensitivities are enough to be used as initial screening tests (see pretest data on poster in Sunday Pavilion session). Those games are usable for self-check.

The UW Virtual Brain Project: Exploring the visual and auditory systems in virtual reality

Karen B. Schloss, Chris Racey, Simon Smith, Ross Tredinnick, Nathaniel Miller, Melissa Schoenlein, and Bas Rokers, University of Wisconsin – Madison

The UW Virtual Brain Project allows you to explore the visual system and auditory system in virtual reality. It helps to visualize the flow of information from sensory input to cortex cortical processing. The ultimate aim of the project is to improve neuroscience education by leveraging natural abilities for space-based learning.

Fun with Birefringent Surfaces and Polarized Light

Gideon Caplovitz, University of Nevada Reno

What could possibly go wrong?

Generating hyper-realistic faces for use in vision science experiments

Joshua Peterson, Princeton University; Jordan Suchow, Stevens Institute of Technology; Stefan Uddenberg, Princeton University

Easily alter your photographic appearance in a bunch of interesting ways! We have developed a system to morph any face image along psychologically relevant dimensions using recent advances in deep neural networks (namely GANs).

Hidden in Plain Sight!

Peter April, Jean-Francois Hamelin, Danny Michaud, Sophie Kenny, VPixx Technologies

Can visual information be hidden in plain sight? We use the PROPixx 1440Hz projector, and the TRACKPixx 2kHz eye tracker, to demonstrate images which are invisible until you make a rapid eye movement. We implement retinal stabilization to show other images that fade during fixations. Do your eyes deceive?

The Magical Alberti Frame

Niko Troje and Adam Bebko, York University

Pictures are two things: objects in space and representations of spaces existing elsewhere. In this virtual reality experience, users use a magical frame to capture pictures that momentarily appear identical to the scene they reside in, but when users move, the pictures evoke unexpected and eerie perceptual changes and distortions.

Café-Wall illusion caused by shadows on a surface of three dimensional object

Kazushi Maruya, NTT Communication Science Laboratories; Yuki Fujita, Tokyo University of the Arts; Tomoko Ohtani, Tokyo University of the Arts

Café-Wall illusion is a famous optical illusion that parallel gray lines between displaced rows of black and white squares are appeared to be angled with respect to one another. In this demonstration, we show that the Café-wall pattern can be emerged when shadows are cast by multiple cuboids onto a 3D surface of varying depths.

Foveal Gravity: A Robust Illusion of Color-Location Misbinding

Cristina R. Ceja, Nicole L. Jardine, and Steven L. Franconer, Northwestern University

Here we present a novel, robust color-location misbinding illusion that we call foveal gravity: objects and their features can be perceived accurately, but are often mislocalized to locations closer to fovea under divided attention.

Multi Person VR walking experience with and without accuracy correction

Matthias Pusch and Andy Bell, WorldViz

Consumer VR systems are great fun but they have limited accuracy when it comes to precisely tracking research participants. This demo will allow participants to experience first hand how inaccurate these systems can be in an interactive multi-user setting within a large walkable virtual space.

Impossible Integration of Size and Weight: The Set-Subset Illusion

Isabel Won, Steven Gross, and Chaz Firestone, Johns Hopkins University
Perception can produce experiences that are *impossible*, such as a triangle with three 90° sides, or a circular staircase that ascends in every direction. Are there impossible experiences that we can not only see, but also *feel*? Here, we demonstrate the “Set-Subset Illusion” — whereby a set of objects can, impossibly, feel lighter than a member of that set!

The Illusory and Invisible Audiovisual Rabbit Illusions

Noelle Stiles, University of Southern California; Armand R. Tanguay, Jr., University of Southern California, Caltech; Ishani Ganguly, Caltech; Monica Li, Caltech, University of California, Berkeley; Carmel A. Levitan, Caltech, Occidental College; Yukiyasu Kamitani, Kyoto University; Shinsuke Shimojo, Caltech

Neuroscience often focuses on the prediction of future perception based on prior perception. However, information is also processed postdictively, such that later stimuli impact percepts of prior stimuli. We will demonstrate that audition can postdictively relocate an illusory flash or suppress a real flash in the Illusory and Invisible Audiovisual Rabbit Illusions.

Chopsticks Fusion

Ray Gottlieb, College of Syntonic Optometry

Have you noticed that your normal stereoscopic perception is never as strong as the stark, solid 3-dimensionality that you see in a stereoscope or virtual reality device? Chopstick Fusion is a simple and inexpensive stereo practice that develops spatial volume perception. I’ll bring chopsticks for everyone.

Moiré effects on real object’s appearances

Takahiro Kawabe and Masataka Sawayama, NTT Communication Science Laboratories; Tamio Hoshik, Sojo University

An intriguing moiré effect is demonstrated wherein a real bar object in front of stripe motion on an LCD display apparently deforms or rotates in depth. Changing bar orientation and/or a bar-display distance drastically modulates the appearance. Even invisible stripe motion causes a vivid change in bar appearances.

The motion aftereffect without motion: 1-D, 2-D and 3-D illusory motion from local adaptation to flicker

Mark Georgeson, Aston University, UK

Adapting to a flickering image induces vivid illusory motion on an appropriate stationary test pattern: a motion aftereffect without inducing motion. Motion can be seen in 1-D, 2-D or 3-D, depending on the images chosen, but the basis for the effect is local adaptation to temporal gradients of luminance change.

Monocular rivalry

Leone Burridge

An iphone 5 drawing printed onto paper. The perceived colours fluctuate between blue/yellow and red /green.

A Fast and blurry versus slow and clear: How stationary stimuli modify motion perception

Mark Wexler, Labotatoire Psychologie de la Perception, CNRS & Université Paris Descartes

Why do shooting stars look the way they do? Why do most moving objects look clear, even at saccadic speeds? Are there motion effects waiting to be explored beyond the frequency range of computer monitors? Come and find out!

Thatcherize your face

Andre Gouws, York Neuroimaging Centre, University of York; Peter Thompson, University of York

The Margaret Thatcher illusion is one of the best-loved perceptual phenomena. Here you will have the opportunity to see yourself ‘thatcherized’ in real time and we print you a copy of the image to take away.

The caricature effect in data visualization: typical graphs produce negative learning

Jeremy Wilmer, Wellesley College

Graphs that display summary statistics without underlying distributions (e.g. bar/line/dot graphs with error bars) are commonly assumed to support robust information transfer. We demo an array of such graphs that falsify this assumption by stimulating negative learning relative to baseline in typical viewers.

Look where Simon says without delay

Katia Ripamonti, Cambridge Research Systems; Lloyd Smith, Cortech Solutions

Can you beat the Simon effect using your eye movements? Compete with other players to determine who can look where Simon says without delay. All you need to do is to control your eye movements before they run off. It sounds so simple and yet so difficult!

Illusory color induced by colored apparent-motion in the extreme-periphery

Takashi Suegami, Yamaha Motor Corporation, Caltech; Yusuke Shirai, Toyohashi University of Technology; Sara W. Adams, Caltech; Daw-An J. Wu, Caltech; Mohammad Shehata, Caltech, Toyohashi University of Technology; Shigeki Nakauchi, Toyohashi University of Technology; Shinsuke Shimojo, Caltech, Toyohashi University of Technology

Our new demo will show that foveal/parafoveal color cue with apparent motion can induce illusory color in the extreme-periphery (approx. 70°-90°) where cone cells are less distributed. One can experience, for example, clear red color perception for extreme-peripheral green flash, with isoluminant red cue (or vice versa).

The Magical Misdirection of Attention in Time

Anthony Barnhart, Carthage College

When we think of “misdirection,” we typically think of a magician drawing attention away from a spatial location. However, magicians also misdirect attention in time through the creation of “off-beats,” moments of suppressed attention. The “striking vanish” illusion, where a coin disappears when tapped with a pen, exploits this phenomenon.

How Can (Parts of) Planarians Survive Without their Brains and Eyes? -Hint: Its Extraocular UV-Sensitive System

Kensuke Shimojo, Chandler School; Eiko Shimojo, California Institute of Technology; Daw-An Wu, California Institute of Technology; Armand R. Tanguay, Jr., California Institute of Technology, University of Southern California; Mohammad Shehata, California Institute of Technology; Shinsuki Simojo, California Institute of Technology

Planarian dissected body parts, even with incomplete eyespots, show “light avoiding behavior” long before the complete regrowth of the entire body (including the sensory-motor organs). We will demonstrate this phenomenon live (in Petri dishes) and on video under both no-UV (visible) and UV light stimulation. In a dynamic poster mode, we show some observations addressing whether or not the mechanical stress (dissection) switches dominance between the two vision systems.

The joy of intra-saccadic retinal painting

Richard Schweitzer,  Humboldt-Universität zu Berlin; Tamara Watson, Western Sydney University; John Watson, Humboldt-Universität zu Berlin; Martin Rolfs, Humboldt-Universität zu Berlin

Is it possible to turn intra-saccadic motion blur – under normal circumstances omitted from conscious perception – into a salient stimulus? With the help of visual persistence, your own eye and/or head movements, and our custom-built setup for high-speed anorthoscopic presentation, you can paint beautiful images and amusing text directly onto your retina.

Build a camera obscura!

Ben Balas, North Dakota State University

Vision begins with the eye, and what better way to understand the eye than to build one? Come make your own camera obscura out of cardboard, tape, and paper, and you can observe basic principles of image formation and pinhole optics.

The Role of Color Filling-in in Natural Images

Christopher Tyler and Josh Solomon, City University of London

We demonstrate that natural images do not look very colorful when their color is restricted to edge transitions. Moreover, purely chromatic images with maximally graded transitions look fully colorful, implying that color filling-in makes no more than a minor contribution to the appearance of extended color regions in natural images.

Chopsticks trick your fingers

Songjoo Oh, Seoul National University

The famous rubber hand illusion is demonstrated by using chopsticks and fingers. A pair of chopsticks simultaneously moves back and forth on your index and middle fingers, respectively. One chopstick is actually touching the middle finger, but the other one is just moving in the air without touching the index finger. If you pay attention only to your index finger, you may erroneously feel the touch come from the index finger, not from the middle finger.

Spinning reflections on depth from spinning reflections

Michael Crognale and Alex Richardson, University of Nevada Reno

A trending novelty toy when spun, induces a striking depth illusion from disparity in specular reflections from point sources. However, “specular” disparity from static curved surfaces is usually discounted or contributes to surface curvature. Motion obscures surface features that compete with depth cues and result in a strong depth illusion.

High Speed Gaze-Contingent Visual Search

Kurt Debono and Dan McEchron, SR Research Ltd

Try to find the target in a visual search array which is continuously being updated based on the location of your gaze. High speed video based eye tracking combined with the latest high speed monitors make for a compelling challenge.

Interactions between visual movement and position

Stuart Anstis, University of California, San Diego; Sharif Saleki, Dartmouth College; Mart Ozkan, Dartmouth College; Patrick Cavanagh, York University

Movement paths can be distorted when they move across an oblique background grating (the Furrow illusion). These motions, viewed the periphery, can be paradoxically immune to visual crowding. Conversely, moving backgrounds can massively distort static flashed targets altering their perceived size, shape, position and orientation.(flash-grab illusion).


VSS Staff

Back by popular demand. Strobe lights and ping pong!