Integrating Eye Tracking Data with Physiological Measurements

Integrating Eye Tracking Data with
Physiological Measurements
Dr. Meike Mischo
SensoMotoric Instruments
Frazer Findlay
BIOPAC Systems, Inc.
Dr. Arnd Rose
SensoMotoric Instruments
Sponsored by:

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Integrating Eye Tracking
Data with Physiological
Measurements
Dr. Meike Mischo
Product Manager, SensoMotoric Instruments (SMI)

© SensoMotoric Instruments GmbH and BIOPAC Systems, Inc. 2016 www.smivision.com www.biopac.com
Integrating
Eye Tracking Data
with
Physiological
Measurements
4

 Eye Positions and Eye Movements
 Cognitive processing
 Visual Processing
 Wayfinding
 Social dynamics
 …
Eye Tracking: What are we looking at?
5
Screen-based Mobile Virtual Reality

Physiological Measurements: Measure Body Functions
6
EMG
Muscle Activity
e.g. Muscle Conditioning
ECG
Heart Activity
e.g. AnxietyEDA
Skin Conductance
e.g. Alertness
EEG
Brain Activity
e.g. Cognitive
Processes
and many more
EGG, Pulse, Respiration,
Temperature, …

Map cause-effect relationships with integrated measurements
7
Which parts in a task
cause cognitive load?
EEG + Eye Tracking
What situations cause
anxiety?
EDA + Eye Tracking
What are strategies to deal
with complex situations?
ECG + Eye Tracking
How do we plan and
execute motor tasks?
EMG + Eye Tracking
Eye Tracking - Cause
Physiology - Effect

How to synchronize data streams
8
🕓 12:01:09🕓 11:59:42
Eye Tracking Recording
Physiology Recording
Time of recorder12:00:00 13:00:00

© SensoMotoric Instruments GmbH and BIOPAC Systems, Inc. 2016 www.smivision.com www.biopac.com 9
🕓 12:01:09🕓 11:59:42
Recording time00:00:00 01:00:00

🕓 12:01:09🕓 11:59:42
Recording time00:00:00
01:06:15:44501:06:15:440
01:00:00

🕓 12:01:09🕓 11:59:42

🕓 12:01:09🕓 11:59:42
13
1. Send Markers
• TTL (Parallel Port)
• Network (TCP/IP, UDP)
2. Reset Clocks
3. Use Physiological Events
• Blinks in EEG/Eye Tracking

Joint recordings with SMI/BIOPAC
14
Presentation by
Design & Record Analyze
Proven solutions for reliable
synchronization tailored to use cases
Click on the
various product
images to learn
more

Measurements
Frazer Findlay CEO, BIOPAC Systems, Inc.

We provide scientific tools for measuring physiology
any time, any where from any subject to academic
researchers and industry scientists who want to
make great discoveries.

Where we came from…
Research was typically restricted to
the lab with little opportunity for
experimental complexity because the
tools just weren’t sophisticated
enough – the technology wasn’t
available for the things that we are
discussing today…
Image courtesy of www.binarysleep.com

Physiology Anywhere and Everywhere
Exercise Play
WorkLab Sleep
1
8

Key Concepts
 Aligning physiological data
with eye tracking data
 Aligning all data with the stimulus events

Blood Pressure
Electrodermal Activity
Left Pupil Diameter Y
Left Pupil Diameter X
Left Pupil Width
Physiological Data with Eye Tracking Data
www.smivision.com www.biopac.com
2
0
© SensoMotoric Instruments GmbH and BIOPAC Systems, Inc. 2016

3.311 seconds
offset from the
event mark
Poorly Aligned Data
www.smivision.com www.biopac.com 21© SensoMotoric Instruments GmbH and BIOPAC Systems, Inc. 2016

1.279 second
offset from the
event mark
Correctly Aligned Data
www.smivision.com www.biopac.com
2
2
© SensoMotoric Instruments GmbH and BIOPAC Systems, Inc. 2016

Stimulus Event Marks

Summary
 Recording great data
 Recording the signals that are important to the study
 Recording data where you want
 Aligning physiological data with eye tracking data
 Aligning all data with the stimulus events

MP150 System
BioNomadix Wireless
Transmitter
RED250Mobile
Eye Tracker
Isolated Stimulus
Presentation
Interface Module
BioNomadix Receiver
Laboratory Solution

Demonstration of
AcqKnowledge Software
View Recording

Eye Tracking with Mobile Subjects

Today...wireless, wearable
physiology – anywhere!

Combine SMI Glasses with
BIOPAC BioNomadix

Measurements
Dr. Arnd Rose
Product Manager, SensoMotoric Instruments (SMI)
30

SMI ETG Integration with BIOPAC BioNomadix Logger
31
SMI Eye Tracking Glasses
(ETG)
BIOPAC BioNomadix Logger

SMI ETG + BioNomadix Logger augments diverse use cases
 Human Factors / Ergonomics: Workplace optimization
o Combining information about physiological state, perception and
performance to understand and improve human interfaces.
 Psychology: Human to human interaction
o Add arousal information to perception.
o Add information of visual perception to interpretation of physiological data.
 Market Research: Decision making in public places
o Add arousal information to improve understanding of decision making.
32

Use Case: HMI research for driver assistance system
 Goal:
o Evaluate stress level of drivers while operating
different assistance systems during driving.
 Test design:
o A-B Testing: Drivers drive a given route in real
traffic while processing different tasks in the
test car and a control vehicle.
33

Equipment setup
BIOPAC
Logger
SMI
Smart
Recorder
Initial clock synchronization
BIOPAC Sensors
-EDA
-PPG
-ECG
-Respiration
BIOPAC BioNomadix
Transmitter
1. PPG & EDA
2. RSP & ECG
BIOPAC BioNomadix
Logger
SMI Eye Tracking
Glasses and Smart
Recorder
34

Time of Day Synchronization
BIOPAC
clock
SMI
clock
Synchronization
of internal clocks
35
Both systems will start recording
independent of each other, but their
“time of day” clocks are in sync…

Data are aligned in AcqKnowledge Software
BIOPAC
clock
SMI
clock
36
Synchronization
of internal clocks

Hands-on process
Preparation Setup Recording Analysis
37

ETG & Smart Recorder: System Setup
 Connect ETG to Smart
Recorder
 Turn on the Smart
Recorder
38

BioNomadix: System Setup
 Turn on BioNomadix
logger
 Connect transmitters
39

Synchronize internal clocks of devices
 Synchronization tool
sets both internal
clocks to the same
time
40
BIOPAC
Logger
SMI
Smart
Recorder

Setup Preparation Recording Analysis

View Recording

Data Export from SMI ETG
 Direct Gaze Data is
saved to the Smart
Recorder’s Micro SD
Card
 Export Data to a PC by
Removing SD Card:
 Data Storage Location
and File Structure
43

Data Import from BioNomadix logger
 Connect logger by USB
to analysis PC
 Start AcqKnowledge SW
 Import Data to
AcqKnowledge
44

Data Integration and Import
 Enable Media Playback
 Open the recorded ETG
video
 Video plays in parallel to
data view
45


46
View Recording

Why and how to perform co-registration?
 Eye tracking and physiological data measurements
reveal cause and effect relationships, e.g.:
 Which situations cause anxiety?
 What increases cognitive load?
 How to synchronize data in diverse settings:
 Methods for synchronization
 Laboratory setup with TTL trigger synchronization
 Real life environment with clock synchronization
Eye Tracking - Cause
Physiology - Effect
🕓 12:01:09🕓 11:59:42

Efficient workflow for co-registration
 SMI/BIOPAC integration provides an efficient co-
registration study workflow:
 Easy to use hardware and software for both mobile
and lab environments
 Efficient co-recording of eye tracking, physiological
data and stimulus events
 Automated and precise synchronization via plug-
and-play integration of analysis software
Please contact us to learn more!

Thank You!
Dr. Meike Mischo Frazer Findlay Dr. Arnd Rose
If you have questions for the presenters
please contact them by email.
For additional information on the solutions
presented in this webinar please visit:
http://www.biopac.com
http://www.smivision.com
BIOPAC Systems: info@biopac.com
SensoMotoric Instruments: info@smi.de
Access the full Recording here

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