fNIRS Datablitz 2020 Q&A: Post-Deadline Session

Tuesday October 13 2020, 7:00-8:30 AM EDT

The video recording of the session is below.

Use the commenting tool below to discuss the presentations given in this session. Please register as a member to be able to ask and answer questions https://fnirs.org/account/. You can register for free for this web content.

Tu13pd1 Keum-Shik Hong
Pusan National University, South Korea
Detection of mild cognitive impairment: Spatiotemporal feature maps of fNIRS
Q&A
3
Question to Dr Hongx
Tu13pd2 Yasuyo Minagawa
Keio University, Japan
Typical and atypical neurocognitive development: language and social interaction
Q&A
1
Question to Dr Minagawax
Tu13pd3 Robert Luke
Macquarie University, Australia
Introduction to the Brain Imaging Data Structure (BIDS) for fNIRS, and fNIRS data processing with the MNE toolbox
Q&A
2
Question to Dr Lukex
Tu13pd4 Ippeita Dan
Chuo University, Japan
Empowering fNIRS data with AI
Q&A
1
Question to Dr Danx
Tu13pd5 Haijing Niu
Beijing Normal University, China
Development of functional network and hemispheric lateralization in children revealed by resting-state fNIRS imaging
Q&A
3
Question to Dr Niux
Tu13pd6 Noman Naseer
Air University, Pakistan
fNIRS for BCI and Neurorehabilitation
Q&A
2
Question to Dr Naseerx
Tu13pd7 Hasan Ayaz
Drexel University, USA
Observing the brain-on-task using fNIRS: Recent neuroergonomic applications
Q&A
2
Question to Dr Ayazx
Tu13pd8 Stacey Gorniak
University of Houston, USA
Functional neuroimaging in postmenopausal women with Type II Diabetes
Q&A
1
Question to Dr Gorniakx
Tu13pd9 Christophe Grova
Concordia University Montreal, Canada
Accuracy of fNIRS local 3D reconstructions using Maximum Entropy on the Mean: fNIRS response to excitability variations induced by TMS
Q&A
1
Question to Dr Grovax
TuPpd Panel Discussion Post-Deadline Session      Moderators Sungho Tak & Felipe Orihuela-Espina
Q&A
0
Question to the Post-Deadline Session Panelx

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Stacey Gorniak
Stacey Gorniak
13 days ago
Q&A Keum-Shik Hong" Read more »

Good morning! Can you share more details on the clinical characteristics of your MCI patients?

Dan
Dan (@dan)
13 days ago
Q&A Keum-Shik Hong" Read more »

Great work! What happens when you optimize your AI to increase sensitivity tuned for screening purpose? You may not have to stick to overall accuracy.

1474-2020-09-24T07:49:11
1474-2020-09-24T07:49:11
13 days ago
Q&A Keum-Shik Hong" Read more »

This is a great work. I like it.
I have a question regarding the duration of task presentation in each block (Block-time period). In your work you used 90s why not for example 30s? or 40s or 20s.

César Caballero-Gaudes
César Caballero-Gaudes
13 days ago
Q&A Robert Luke" Read more »

Does MNE-NIRS also perform preprocessing or should these steps be done in another software?

LukeRobert
LukeRobert (@lukerobert)
Reply to  César Caballero-Gaudes
13 days ago

MNE-NIRS does pre processing. You can import your raw data from vendor machine and do preprocessing in MNE. Here are two examples of pre processing in MNE…

Here is an example epoching analysis https://mne.tools/stable/auto_tutorials/preprocessing/plot_70_fnirs_processing.html

And here is an example GLM Analysis https://mne.tools/mne-nirs/auto_examples/plot_11_hrf_measured.html

LukeRobert
LukeRobert (@lukerobert)
Reply to  César Caballero-Gaudes
13 days ago

Also a note… MNE can read SNIRF files, so this should make it accessible to a wide range of commercial devices.

BoasDavid
BoasDavid (@boasdavid)
13 days ago
Q&A Robert Luke" Read more »

Can you put the link to the BIDS proposal here? Also, what can we do now to more coordinate between this initiative and SNIRF? Luca Pollonini and I have talked a little about this. I assume you and Luca are talking about this as well.

LukeRobert
LukeRobert (@lukerobert)
Reply to  BoasDavid
13 days ago

Good idea! Here is the link.

bids.neuroimaging.io/bep030

Yes we have briefly discussed, but should do more to coordinate between BIDS and SNIRF. Perhaps a brief meet for people interested in both initiatives? Or a review of each specification? I will keep thinking what else we can do.

LukeRobert
LukeRobert (@lukerobert)
Reply to  LukeRobert
13 days ago

There is validators for each initiative, perhaps passing the same data through both would highlight potential end user pain points? (now im just thinking on the fly ;))

BoasDavid
BoasDavid (@boasdavid)
Reply to  LukeRobert
13 days ago

it would be good to have a semi-regular meeting to make sure everything is coordinated as this all moves forward

LukeRobert
LukeRobert (@lukerobert)
Reply to  BoasDavid
13 days ago

Fantastic. I will email you and Luca to coordinate and loop in any interested parties (first thing in the morning, its late here!).

Dan
Dan (@dan)
13 days ago
Q&A Hasan Ayaz" Read more »

Which of fNIRS image (eg PFC activation) or behavioral parameters is more sensitive to TMS (or tDCS) treatment? I expect fNIRS image is often more sensitive.

AyazHasan
AyazHasan (@ayazhasan)
Reply to  Dan
13 days ago

well, we have seen so far SDST task (symbol digit substitution task) to be very effective, however, we have also looked at before just the target stimulation area under the TMS coil (or tdcs target) without any task, and showed active stimulation impacts the activation in the area.\

Dan
Dan (@dan)
13 days ago
Q&A Haijing Niu" Read more »

Interesting results! How many channels do you need to detect global efficiency in the case of ADHD? It seems not so many channels are necessary guessing from your slide.

NiuHaijing
NiuHaijing (@niuhaijing)
Reply to  Dan
13 days ago

Thanks. Eighty channels for our study. I think, it will obtain much more details from the brain network if many more measurement channels are used.

Dan
Dan (@dan)
13 days ago
Q&A Noman Naseer" Read more »

Interesting results! R&L classification seems very robust. Then how long do you need to successfully classify them? Say, is one trial OK?

NaseerNoman
NaseerNoman (@naseernoman)
Reply to  Dan
13 days ago

It was not single trial. Several trials in both cases were used. As you know, in ML problems, we need to have large amount of data. The advantage is the good decoding accuracy but disadvantage is the long training time and time delays.

Usman
Usman
13 days ago
Q&A Haijing Niu" Read more »

Great work. I used this software for our work.
In your own work, did you check other connectivity measures for ADHD classification.?

NiuHaijing
NiuHaijing (@niuhaijing)
Reply to  Usman
13 days ago

Thanks. We didn’t try the other connecitivty measures for our ADHD classsification.

Usman
Usman
13 days ago
Q&A Noman Naseer" Read more »

Nice talk. The results of vector phase analysis based features has already published or not? Is there a preprint available. Thank you.

NaseerNoman
NaseerNoman (@naseernoman)
Reply to  Usman
13 days ago
Dan
Dan (@dan)
13 days ago
Q&A Stacey Gorniak" Read more »

Interesting application! What is happening in the brains of Diabetes patients? Does the hemodynamic change reflect physiological change or cognitive one?

Javier Andreu-Perez
Javier Andreu-Perez
13 days ago
Q&A Hasan Ayaz" Read more »

Very interesting and relevant work. About the wheelchair control, beyond congitive load, do you think that cognitive decline and fatigue could be also a relevant issue for brain-controlled wheelchairs?

AyazHasan
AyazHasan (@ayazhasan)
Reply to  Javier Andreu-Perez
13 days ago

thanks, good points, yes, we should account for those for extended use or different subjects groups, And, for brain computer interface, I guess mental discipline is critical for effective use.

Donna Chen
Donna Chen
13 days ago
Q&A Haijing Niu" Read more »

Excellent talk! Were different head motion corrections used for the typically developing children compared to the ADHD children?

NiuHaijing
NiuHaijing (@niuhaijing)
Reply to  Donna Chen
13 days ago

Thanks. We used the ICA algorithm for both the ADHD children and the healthy controls.

Sungho Tak
Sungho Tak (@stakkbsi-re-kr)
13 days ago
Q&A Yasuyo Minagawa" Read more »

Thank you for the great talk. I was wondering how you estimated synchronization of brain activity between persons, and how the different delayed onset of infant data was accommodated in the estimates.

Sungho Tak
Sungho Tak (@stakkbsi-re-kr)
13 days ago
Q&A Ippeita Dan" Read more »

Thank you for the interesting talk. Was there any challenge when applying the classification method to fNIRS data?

Ruisen Huang
Ruisen Huang
13 days ago
Q&A Christophe Grova" Read more »

Thank you for your presentation. Is it possible to implement the maximum entropy method for real-time processing?