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Posner Cueing Paradigm in Augmented Reality Environment

Englesson, Andreas LU (2020) MAMM01 20201
Ergonomics and Aerosol Technology
Abstract
Posner Cueing Task is an experiment to investigate the eect dierent type of
stimulis could have on the visual attention. This master thesis aimed to
implement a Posner Cueing Task in an Argumented Reality using a integrated
eye tracker. The thesis were divided into two distinct parts. One part to write
code for synchronisation and communication between Microsoft Hololens and
Tobii eye tracker. One part to use this framework and devices to implement
and run a Posner cueing task with subtle cues. The synchronisation was carried
out using the UDP protocol sending data packages over the tobii network. As
the tobii glasses were specially modied to t onto the Hololens the camera
had been removed. This caused the need to be able to... (More)
Posner Cueing Task is an experiment to investigate the eect dierent type of
stimulis could have on the visual attention. This master thesis aimed to
implement a Posner Cueing Task in an Argumented Reality using a integrated
eye tracker. The thesis were divided into two distinct parts. One part to write
code for synchronisation and communication between Microsoft Hololens and
Tobii eye tracker. One part to use this framework and devices to implement
and run a Posner cueing task with subtle cues. The synchronisation was carried
out using the UDP protocol sending data packages over the tobii network. As
the tobii glasses were specially modied to t onto the Hololens the camera
had been removed. This caused the need to be able to calibrate the eye tracker
without the normal use of the front camera. A task that showed to be possible
to solve by providing a digital calibration marker to the eye tracker.
The communication between the two devices were implemented and worked as
expected with a fairly low latency. The Posner Cueing Task were then
implemented and deployed to the Hololens glasses using Unity and Visual
Studios. The eye tracker broke just before the experiment were to be carried
out. The code had to be adapted to not use the eye tracker. The experiment
were then carried out with only the hololens as a input device.
The test result showed that a subtle cue had a similar eect of the participants
attention as a high contrast cue. The experiment also showed that a valid cue,
one that showed at the same side as the target, yield a lower RT than an invalid
cue, one showed at the opposite side of the target. Cue-target onset
asynchronies is the time between that the cue dissapeared and the target
appears. This varied from 50ms to 650ms, where the lower ones had a positive
eect on the RT. The eect decreased with time and yield a negative eect for
650ms CTOA. (Less)
Popular Abstract (Swedish)
Michael Posner är en amerikansk psykolog som under tidigt 80-tal utvecklade ett numera välkänt experiment kallat Posner Paradigm, eller Posner’s Cueing Task. Experimentet är vida använt för att bedöma hur en deltagares uppmärksamhet kan påverkas av olika störningar och stimuli. Här utförs detta experiment på deltagare i en förstärkt verklighet.
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author
Englesson, Andreas LU
supervisor
organization
course
MAMM01 20201
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Augmented Reality, Hololens Generation 1, Tobii Pro Glasses 2, Posner Cueing task, eye tracking
language
English
id
9022321
date added to LUP
2020-06-29 14:09:40
date last changed
2020-06-29 14:09:40
@misc{9022321,
  abstract     = {Posner Cueing Task is an experiment to investigate the eect dierent type of
stimulis could have on the visual attention. This master thesis aimed to
implement a Posner Cueing Task in an Argumented Reality using a integrated
eye tracker. The thesis were divided into two distinct parts. One part to write
code for synchronisation and communication between Microsoft Hololens and
Tobii eye tracker. One part to use this framework and devices to implement
and run a Posner cueing task with subtle cues. The synchronisation was carried
out using the UDP protocol sending data packages over the tobii network. As
the tobii glasses were specially modied to t onto the Hololens the camera
had been removed. This caused the need to be able to calibrate the eye tracker
without the normal use of the front camera. A task that showed to be possible
to solve by providing a digital calibration marker to the eye tracker.
The communication between the two devices were implemented and worked as
expected with a fairly low latency. The Posner Cueing Task were then
implemented and deployed to the Hololens glasses using Unity and Visual
Studios. The eye tracker broke just before the experiment were to be carried
out. The code had to be adapted to not use the eye tracker. The experiment
were then carried out with only the hololens as a input device.
The test result showed that a subtle cue had a similar eect of the participants
attention as a high contrast cue. The experiment also showed that a valid cue,
one that showed at the same side as the target, yield a lower RT than an invalid
cue, one showed at the opposite side of the target. Cue-target onset
asynchronies is the time between that the cue dissapeared and the target
appears. This varied from 50ms to 650ms, where the lower ones had a positive
eect on the RT. The eect decreased with time and yield a negative eect for
650ms CTOA.},
  author       = {Englesson, Andreas},
  keyword      = {Augmented Reality,Hololens Generation 1,Tobii Pro Glasses 2,Posner Cueing task,eye tracking},
  language     = {eng},
  note         = {Student Paper},
  title        = {Posner Cueing Paradigm in Augmented Reality Environment},
  year         = {2020},
}