Virtual Reality 3-D Brain Helps Scientists Understand Migraine Pain

Virtual Reality 3-D Brain Helps Scientists Understand Migraine Pain

Dr. Alex DaSilva Photo Credit: Scott Soderberg, Michigan Photography

From U-M News:

ANN ARBOR—Wielding a joystick and wearing special glasses, pain researcher Alexandre DaSilva rotates and slices apart a large, colorful, 3-D brain floating in space before him.

Despite the white lab coat, it appears DaSilva’s playing the world’s most advanced virtual video game.  The University of Michigan dentistry professor is actually hoping to better understand how our brains make their own pain-killing chemicals during a migraine attack.

The 3-D brain is a novel way to examine data from images taken during a patient’s actual migraine attack, says DaSilva, who heads the Headache and Orofacial Pain Effort at the U-M School of Dentistry and the Molecular and Behavioral Neuroscience Institute.

Different colors in the 3-D brain give clues about chemical processes happening during a patient’s migraine attack using a PET scan, or positron emission tomography, a type of medical imaging.

“This high level of immersion (in 3-D) effectively places our investigators inside the actual patient’s brain image,” DaSilva said.

Through some innovative work done by Dr. Alexandre Dasilva and his team in the School of Dentistry, the Duderstadt Center was presented with some exciting new data that shows activation in the brain *during* a migraine attack. Most data happens before or after an attack. Sean Petty and Ted Hall worked closely with Dr. DaSilva to interpret the data and add some new tools to Jugular, our in-house 3D engine, for exploring volumetric data such as fMRI and CT scans. Dr. DaSilva can now explore the brain data by easily walking around the data and interactively cutting through it.

Test Driving with FAAC and Graphics Performance Discussion

Test Driving with FAAC and Graphics Performance Discussion


FAAC Incorporated provides system engineering and software products including driving simulators for commercial and private training. FAAC reached out to the Duderstadt Center to share information and to compare their system performance to the MIDEN’s capabilities. The Duderstadt Center had developed an “urban neighborhood” model as a stress test: how big and highest number of triangles and vertices can we make the models while still maintaining a comfortable interactive frame-rate in the MIDEN? The demo showed the MIDEN’s system capabilities and potential. The Duderstadt Center proceeded to visit FAAC’s space and saw the first 6-DOF full-motion system in a mobile trailer.

Motion Capture and Kinects Analyze Movement in Tandem

Motion Capture and Kinects Analyze Movement in Tandem

As part of their research under the Dynamic Project Management (DPM) group, PhD candidates Joon Oh Seo and SangUk Han with UROP student Drew Nikolai used the Motion Capture system to study the ergonomics and biomechanics of climbing a ladder. The team, advised by Professor SangHyun Lee, is analyzing the movements of construction workers to identify behaviors that may lead to injury or undue stress on the body. Using MoCap the team can collect data on joint movement, and by using the Kinect they can collect depth information. By comparing the two data sets of Nikolai climbing and descending the ladder, Seo and Han can compare accuracy, and potentially use the Kinects to collect information at actual construction sites.

Article: Measurable Domain for Colour Differences within a Virtual Environment

Article: Measurable Domain for Colour Differences within a Virtual Environment

Light & Engineering (vol. 20, no. 3, 2012) | Светотехника (2 • 2012)

Professor Moji Navvab has published another article regarding his lighting analysis of virtual reality: “Область Поддающихся Измерению Цветовых Различий в Виртуальной Среде” (“Measurable Domain for Colour Differences within a Virtual Environment”), in, Светотехника (Light & Engineering).

PainTrek Released on iTunes!

PainTrek Released on iTunes!


Get the App!

Ever have a headache or facial pain that seemingly comes and goes without warning? Ever been diagnosed with migraines, TMD or facial neuralgias but feel that your ability to explain your pain is limited?

PainTrek is a novel app that was developed to make it easier to track, analyze, and talk about pain. Using an innovative “paint your pain” interface, users can easily enter the intensity and area of pain by simply dragging over a 3D head model. Pain information can be entered as often as desired, can be viewed over time, and even analyzed to provide deeper understanding of your pain.

The PainTrek application measures pain area and progression using a unique and accurate anatomical 3D system. The head 3D model is based on a square grid system with vertical and horizontal coordinates using anatomical landmarks. Each quadrangle frames well-detailed craniofacial areas for real-time indication of precise pain location and intensity in a quantifiable method. This is combined with essential sensory and biopsychosocial questionnaires related to previous and ongoing treatments, and their rate of success/failure, integrating and displaying such information in an intuitive way.

Duderstadt Center takes 1st and 2nd Place in Mobile Apps Challenge

Duderstadt Center takes 1st and 2nd Place in Mobile Apps Challenge

In December of 2012, The University of Michigan held a mobile app competition to showcase new apps developed within the university and encourage the developer community to create innovative mobile designs. U-M students, faculty, and staff submitted a variety of apps from many different disciplines and genres. The event was sponsored and judged by individuals from Computer Science and Engineering, Google, Information and Technology Services, and Technology Transfer.

1st Place – PainTrek
Ever have a headache or facial pain that seemingly comes and goes without warning? Ever been diagnosed with migraines, TMD or facial neuralgias but feel that the medication or your ability to explain your pain is limited? PainTrek is a novel app that was developed to make it easier to track, analyze, and talk about pain.

2nd Place – PictureIt: The Epistles of St. Paul
The app will give you the feel of what it was like reading an ancient Greek book on papyrus, where the text is written without word division, punctuation, headings, or chapter and verse numbers. To aid the reader without knowledge of ancient Greek the translation mode will give a literal translation of the Greek text preserved on these pages (with addition of chapter and verse numbers), with explanatory notes showing where this text is different from the Standard text.

Xbox Kinect used to scan surfaces in wind tunnel

Xbox Kinect used to scan surfaces in wind tunnel

At­­ the Gorguze Family Laboratory here on North Campus, Alexander Pankonien scanned a test wing in the 5 by 7 foot wind tunnel. Aerospace engineers will test their prototypes or parts in the wind tunnels to see how they will fare, scanning the objects to measure how it was affected and determine whether it will be safe to launch.

Usually, the Aerospace engineers scan with a laser scanner which picks up single point. In this instance, Alexander used the Xbox 360 Kinect, which captures entire surfaces, to scan the wing. The Kinect can scan from behind glass or acrylic screening, so it doesn’t upset wind patterns. Though the Kinect is less accurate than the laser scanner, it can scan more of the object than the single laser beam. And, if it is accurate enough to make measurements worthwhile, this will be a great, fast solution to scanning objects in wind tunnels.

AnnArbor.com – St. Paul’s Ancient Letters Available for Perusal

AnnArbor.com – St. Paul’s Ancient Letters Available for Perusal

From AnnArbor.com:

You can now hold one of University of Michigan’s most valuable possessions in your hands.

Well, sort of.

Thirty of the rarest, earliest leaves of the Epistles of St. Paul, dating from 180 to 220 AD, have been digitized and turned into an interactive app usable on iPhones and iPads.

“What’s especially important is the direct experience with the ancient world,” Arthur Verhoogt, acting archivist of the library’s papyrology collection, said of the app, called PictureIt: EP.

“History is nice to read about but it’s much more important to be able to touch history.”

The collection of letters, known to scholars as Papyrus 46, is believed to be the oldest known surviving copy of the Letters of St. Paul. Out of the 104 page collection, 30 leaves reside here in Ann Arbor, 56 leaves reside at the Chester Beatty Library in Dublin and 18 are lost. A leaf is made up of two pages of a book.

The new app, prepared by the Digital Media Commons 3-D Lab at U-M, allows users to flip through the letters as they would a book.

Read the Full Article

Wayfinding in Assisted Living Homes

Wayfinding in Assisted Living Homes

Rebecca Davis, professor and researcher at the Grand Valley State University, received a research grant from the National Institute of Health to research how patients with Alzheimers disease navigate their living space. Assisted living homes can be drab or nondescript with long hallways adding to the confusion and frustration for those living in these homes. To research this problem and possible solutions, Davis recruited 40 people in the early stages of Alzheimer’s and 40 without the disease to virtually walk through a simulation of an actual assisted living home in the MIDEN. Staff and students at the Duderstadt Center modeled a 3D environment to re-create details such as the complicated lighting or maze-like hallways, to create a natural and immersive experience. This allows users to fully experience how the color schemes, lighting, and wall detail can affect the experience of living in the home. Various “visual cues” are placed throughout the space at key locations to determine if these help the subject in remembering which paths lead to where they need to go. Rebecca currently utilizes two environments in her study, one with visual cues and one without. Subjects are shown the path they must go to reach a destination and then given an opportunity to travel there themselves-if they can remember how.

PictureIt: Epistles of Paul Released on iTunes

PictureIt: Epistles of Paul Released on iTunes

Get the App!

Welcome to the world of second century C.E. Egypt. This app will allow you to leaf through pages of the world’s oldest existing manuscript of the letters of St. Paul (P.Mich.inv.6238, also known in NT scholarship as P46). Thirty leaves of this manuscript, written in about 200 C.E., were found in Egypt and purchased by the University of Michigan Papyrology Collection in 1931 and 1933 (another 56 leaves, not included in this app, are housed in the Chester Beatty Library, Dublin; 18 leaves are missing completely).

The app will give you the feel of what it was like reading an ancient Greek book on papyrus, where the text is written without word division, punctuation, headings, or chapter and verse numbers. To aid the reader without knowledge of ancient Greek the translation mode will give a literal translation of the Greek text preserved on these pages (with addition of chapter and verse numbers), with explanatory notes showing where this text is different from the Standard text.