We are now full for our 9th annual Kinarm Camp, will be held Monday, May 16 – Friday, May 20, 2022 ‘virtually’ from ~ 10 am to 4 pm EDST.
Learn more about the Arm Movement Matching task from its developers
Kinarm’s President and CEO Anne Vivian-Scott sat down with Dr. Sean Dukelow and Dr. Jennifer Semrau, the developers of the Arm Movement Matching (‘Kines’) task to discuss its utility in understanding kinesthesia.
Events Calendar
We’re back in the swing of things and looking forward to engaging with you at these upcoming meetings!
| Upcoming Meetings | Date | Location | Booth Number |
| KUEL: Gaze-Tracking | February 10, 2022 | On-line | |
| ASNR | March 31 – April 2, 2022 | St Louis, MO | TBD |
| Neural Control of Movement | July 25 – 29, 2022 | Dublin, Ireland | Table # |
| Neuroscience 2022 (SfN Annual Meeting) | November 13-16, 2022 | San Diego, CA | #TBD |
| Brainbox Initiative Annual Conference | TBD | Virtual | #TBD |
Technical Bulletin: Kinarm Gaze-Tracker; Impact of Reducing the Number Calibration Targets
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.
Kinarm User Exchange & Learning (KUEL): Best Practices for Gaze Tracking
Randomization Bug in Dex 3.8 & 3.9
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.
Neuroscience 2021: How to connect with us virtually!
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
3.9 Released: Dexterit-E & Dexterit-E Explorer are Now Available *Update: Dexterit-E 3.9.2 Released*
*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.
Impact of COVID 19: recovery phase
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:
Advisory re bug in NI-6229 Block of TDK 3.9 *Corrected*
*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
Kinarm Labs Now Available to Brainbox Clients
Kinarm welcomes Brainbox as a value-added reseller of Kinarm Labs, bridging Kinarm Labs’ strength in the quantitative assessment of brain injury into the rapidly advancing field of neurostimulation.
