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Anne Vivian-Scott

Technical Bulletin: Kinarm Gaze-Tracker; Impact of Reducing the Number Calibration Targets

Posted on Feb 8, 2022

Abstract:

The 13-point calibration routine for the Kinarm Gaze-Tracker is slow, and often difficult to achieve a good subject calibration with, often requiring multiple calibration attempts. Two factors contribute to these problems: the large number of target locations used in the calibration routine and the large size of the region over which the calibration is performed. This study quantified the effects on calibration accuracy when each of these factors was reduced. The results show that reducing the number of targets from 13 to 5 has a small impact on calibration accuracy (1.0±0.6° vs 1.1±0.7°) while significantly reducing the total time for the calibration routine. Further, reducing the size of the 5-point calibration region from 100% to 70% had only a marginal increase in uncertainty (1.2±0.9°). It is recommended that for most Kinarm users a 5-point calibration routine will save time without sacrificing the quality of the collected data.

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Filed Under: Kinarm News, Product Notices

Randomization Bug in Dex 3.8 & 3.9

Posted on Dec 7, 2021

Please be advised that if you are running a custom task program in 3.8.x or 3.9.x that there is a randomization bug in the Block Table if square brackets are used in the TP List (i.e. TP List in the Block Table = 10-15, [1, 2, 3]) and List Reps or Block Reps are > 1. Round brackets in the TP List are not affected by this issue. If List Reps and Block Reps are 1 then there is no problem.

Any TPs listed inside square brackets will always be randomized to the same order for a given block. The randomized order will be different each time the task is run.

While the bug will be fixed in an upcoming release, we wanted to provide immediate notice to all potential users as the bug is difficult to detect.

To workaround the bug, manually repeat the TP List as many times as required.

If you need to randomize TP List = 5, [1,2,3], List Reps = 2, Block Reps = 2 then instead use:

TP List = [5, [1,2,3]], [5, [1,2,3]], [5, [1,2,3]], [5, [1,2,3]], List Reps = 1, Block Reps = 1

Our thanks to the lab in Calgary who spotted the bug and reported it to us.

Filed Under: Product Notices

Neuroscience 2021: How to connect with us virtually!

Posted on Nov 1, 2021

Neuroscience is next week, and while we truly wish we could meet you in-person, we hope that you will connect with us through one of these options:

Attend one of our Neuroscience Virtual Networking Events

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Filed Under: Events, Neuroscience

3.9 Released: Dexterit-E & Dexterit-E Explorer are Now Available *Update: Dexterit-E 3.9.2 Released*

Posted on Oct 21, 2021

*Update* Dexterit-E 3.9.2 released.

Dexterit-E 3.9.2 contains important stability fixes for rare error conditions. This is considered a mandatory update. 

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Filed Under: Kinarm News, Product Notices

Impact of COVID 19: recovery phase

Posted on Aug 20, 2021

Like all businesses around the world, we are feeling the impacts of COVID 19.  To keep you abreast of the impact, we’ve started this blog:

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Filed Under: Kinarm News, Product Notices

Advisory re bug in NI-6229 Block of TDK 3.9 *Corrected*

Posted on Aug 5, 2021

*Update* Advisory has been corrected with the release of Dexterit-E 3.9.1

———————————————————————————————————————————————————————————————————————Advisory posted 18-Jun-21, re bug in the NI-6229 block

  • The bug affects those sending out digital out pulses only AND running MATLAB R2019b
  • Analog output is not affected.
  • This bug will be fixed with 3.9.1 expected early July 2021.
  • The workaround is to unlink the Sync TTL block, copy the BKIN 6229 DO block inside it and use that instead.
  • Please contact support@kinarm.com if you need help with the workaround.

Ref: CC-1205

Filed Under: Product Notices

Kinarm End-Point Lab (PN 14332) Released

Posted on May 1, 2021

We are pleased to announce the release of our latest model of Kinarm End-Point Lab, PN 14332.

This updated design includes many “under-the-hood” enhancements that preserve the ‘feel’ and function of the old Kinarm End-Point robot (PN 10288, first released in 2010) while bringing the overall electronics design up to current day standards.

To an experienced user, you may find it difficult to find the differences!

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Filed Under: Kinarm News, Product Notices

Stephen Scott spoke at KITE, UHN, June 28, 2020

Posted on Apr 8, 2021

Can robotic technology bring neurological assessment into the 21st century?
Stephen H. Scott
Centre for Neuroscience Studies, Dept. of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON K7L 3N6 Canada

Location: KITE, University Health Network, Toronto

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Filed Under: Events, Kinarm News

Kinarm Camp 2021: Registration is closed

Posted on Apr 7, 2021

Our 8th annual Kinarm Camp, will be held Monday, May 17 – Friday, May 21, 2021 ‘virtually’ from ~ 10 am EDT to 4 pm EDT

The objective of the Camp is to provide focused training on Custom Task development for Kinarm Labs. The five-day agenda is tailored to Basic Researchers and will provide hands-on learning on the use of MATLAB Simulink and Stateflow to develop Custom Task Programs for the Kinarm Lab. New users, graduate students, and post docs are all invited to attend. Clinical researchers with an interest in Custom Task development are also welcome to attend.

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Filed Under: Events, KINARM Camp

Events Calendar

Posted on Aug 11, 2020

We’re back in the swing of things and looking forward to engaging with you at these upcoming meetings!

Upcoming MeetingsDateLocationBooth Number
KUEL: Gaze-TrackingFebruary 10, 2022On-line 
ASNRMarch 31 – April 2, 2022St Louis, MOTBD
Neural Control of Movement July 25 – 29, 2022 Dublin, IrelandTable #
Neuroscience 2022 (SfN Annual Meeting)November 13-16, 2022San Diego, CA#TBD
Brainbox Initiative Annual ConferenceTBDVirtual#TBD

 

Filed Under: Events

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