Having just come from the 5th International Brain-Computer Interface Meeting, I would say that 2-5 selections per minute is pretty typical and few studies report more than 5 selections per minute with actual end-users. There are isolated reports of faster performance, but usually not in real-life situations for real-life tasks. You can read the recent reports in the BCI Meeting Proceedings at http://bcimeeting.org/2013/abstract.html --------------------------------------------------------- Jane E. Huggins, Ph.D.; xxxxxx@umich.edu "The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' (I've found it!), but 'That's funny...'." -- Isaac Asimov -----Original Message----- From: xxxxxx@alsa.simplelists.com [mailto:xxxxxx@alsa.simplelists.com] On Behalf Of Amy Roman Sent: Thursday, June 13, 2013 1:08 PM To: xxxxxx@alsa.simplelists.com Subject: Re: BCI - Intendix Jen Thanks so much for this very informative update on BCI. To clarify, is 2-4 selections per minute about what we can expect currently with this system? Your update was both optimistic and cautious in regards to some of the real challenges and limitations. Really nice info. Amy Sent from my iPhone On Jan 29, 2013, at 7:45 AM, "Coggiola, Jennifer L." <xxxxxx@ucsfmedctr.org> wrote: > OK, copied and pasted. > > Review of the intendiX P300 BCI with SJ1 > > GOOD NEWS > The system can work. Indeed, it provided 100% accurate communication on the first day. > The BCI worked within 20 minutes of mounting the cap – there was one training run, then he began spelling perfectly. This is unusually fast. > SJ1’s EEG reflected relatively normal P3 and N4 activity, although it was stronger on some channels than others. He can definitely form messages or commands, understand directions, see the monitor, choose to count specific characters, and remember the word he wants to spell. If he could not do any of these things, the BCI would not have worked. This does not prove that he is totally cognitively intact – this could not be proven in such a short time without more testing and equipment – but he is “there” and he wants to communicate. > SJ1’s family is positive, motivated, and attentive. You mounted the cap both times and operated intendiX. I provided advice both times, but I think you could use it independently. I showed you how to reconfigure the board to change the number of flashes, speed up the flashes, add a row, and add or change icons. I think you could also do this independently, and thus (for example) add a bedpan command or other special commands. > In short, it is likely you could replicate the achievement we had on the first day: accurate spelling within minimal training and setup. However, there are a lot of caveats. > > CONCERNS AND ISSUES > On the second day, the system did not work. SJ1 reported that he was tired. SJ1 said he was sorry through the ABC board, but I told him that he should not be. This is common with late stage ALS patients, and not at all SJ1’s fault. > SJ1 said his eyes were sore on the second day. Teresa noted that he had reported sore eyes a few days earlier, so there may be a concern independent of the BCI. > SJ1 said the system was fatiguing. This might be reduced with practice, and/or different parameters such as alternate matrix sizes, monitors, images, or other parameters. It might not. In other words, it is possible that a BCI might only be practical for short periods. > Since we did not work with him on the second day, we could not optimize the system by reducing the number of flashes or the flash time. Therefore, the system has only been tested in a slow mode, with 15 flashes (15 row and 15 column) and 310 ms ISI. This is below 2 characters per minute. I said that I think it is realistic to get to a few characters per minute, but above 5 per minute is iffy. > The main problem is, as always, the need for support to really extend the application flexibility of the system. intendiX can support email, printing, and twitter. It is possible to use a BCI for other things like web browsing, BrainPainting, games, or smart home control. Word completion, error correction, and other improvements are also possible, but not easy. This does not necessarily require an expert in BCIs; a good software engineer could probably adapt intendiX and/or BCI2000 if willing to devote the effort. I do not have the technical skill. I could recommend such people, but they are not in the Bay Area and I do not know if they are available or what they would charge. > You may want to consider other BCIs, and other BCI people to help. I can put you in contact with other people, but I do not know anyone available and they would presumably charge for travel and other costs, assuming they are available. > You might consider an invasive BCI. I already put you in contact with Dr. Hochberg, who is a respected expert with invasive BCIs. In my opinion, he is an honorable and highly competent BCI expert and doctor. However, I have never worked with him. I could put you in touch with my friend Dr. Kai Miller, who has also worked with invasive BCIs and lives near Stanford. He is an MD/PhD who is becoming a neurosurgeon, but cannot yet do neurosurgery. He could put you in touch with the right people. Of course, invasive BCIs entail neurosurgery and this should not be taken lightly. SJ1’s doctor, and the relevant neurosurgeon, should help you evaluate the risks, benefits, and costs. I am not a medical doctor, so I can only provide limited advice. > > Overall, I would definitely recommend against relying on the BCI as the sole means of communication. At best, a BCI could be part of a suite of other assistive technologies and options, including the ABC board with your caretaker. If SJ1 is interested, you should contact g.tec to ask about costs for renting or buying a system so you can best consider your different options. I think that SJ1, and you, now have a better idea of both the promise and problems with BCIs and can make a more informed decision. > > Good luck and please give SJ1 my warmest regards. I hope to communicate with him again. > > Jen Coggiola, MA, CCC/SLP > Speech Pathologist > ALS Center at UCSF > 400 Parnassus Ave., 8th Floor > San Francisco, CA 94143 > (415) 353-2122 clinic phone > (415) 353-2524 clinic fax > (925) 323-0175 cell phone > xxxxxx@ucsfmedctr.org > ________________________________________ > From: xxxxxx@alsa.simplelists.com > [xxxxxx@alsa.simplelists.com] on behalf of lisa > [xxxxxx@alsaohio.org] > Sent: Tuesday, January 29, 2013 7:34 AM > To: xxxxxx@alsa.simplelists.com > Subject: RE: BCI - Intendix > > This list does not allow attachments..... > > > Lisa M. Bruening, M.S., CCC-SLP > Director of Care Services > The ALS Association Northern Ohio Chapter Direct Line: 216-867-1262 > Chapter Phone: 216-592-2572 Toll free: 888-592-2572 > Fax: 216-592-2575 > > Check out our webpage: www.alsaohio.org Like us on Facebook! > www.facebook.com/ALSANorthernOhio Follow us on Twitter! > > We've Moved!!! > 6155 Rockside Road, Suite 403 > Independence, OH 44131 > Phone, email, fax and web will remain the same. > > > -----Original Message----- > From: xxxxxx@alsa.simplelists.com > [mailto:xxxxxx@alsa.simplelists.com] On Behalf Of Coggiola, > Jennifer L. > Sent: Tuesday, January 29, 2013 10:11 AM > To: xxxxxx@alsa.simplelists.com > Subject: RE: BCI - Intendix > > Oops! Here you go. > > Jen Coggiola, MA, CCC/SLP > Speech Pathologist > ALS Center at UCSF > 400 Parnassus Ave., 8th Floor > San Francisco, CA 94143 > (415) 353-2122 clinic phone > (415) 353-2524 clinic fax > (925) 323-0175 cell phone > xxxxxx@ucsfmedctr.org > ________________________________________ > From: xxxxxx@alsa.simplelists.com > [xxxxxx@alsa.simplelists.com] > on behalf of Edward Hitchcock [xxxxxx@ric.org] > Sent: Tuesday, January 29, 2013 7:02 AM > To: xxxxxx@alsa.simplelists.com > Subject: RE: BCI - Intendix > > Jennifer, i cannot see the attachment, and am very interested in this. > > I am currently trialing an intendix with a pALS, Unfortunately without > much success so far although we are only 2 weeks into trial. I will > certainly write up and share my experience with this list. > > Ed Hitchcock OT/L > Technology Center > Rehabilitation Institute of Chicago > ________________________________________ > From: xxxxxx@alsa.simplelists.com > [xxxxxx@alsa.simplelists.com] > on behalf of Coggiola, Jennifer L. [xxxxxx@ucsfmedctr.org] > Sent: Monday, January 28, 2013 8:06 PM > To: xxxxxx@alsa.simplelists.com > Subject: BCI - Intendix > > I've attached a researcher's write-up of an Intendix BCI trial with > one of my patients. The researcher was in the Bay Area and graciously > offered his time for this super-smart, loveable pALS. This pALS was a > vent-dependent tech guy from Silicon Valley who would have been > described as a power-user on an EyeMax until his eyes were moderately > affected by ALS. In the end, my patient decided that the BCI was too > fatiguing and slow, that low tech worked better although it was > limiting, and he decided to withdraw from the vent. The family gave > me permission to pass this along to other pALS and this listserv specifically. > > > > Jen Coggiola, MA, CCC/SLP > Speech Pathologist > ALS Center at UCSF > 400 Parnassus Ave., 8th Floor > San Francisco, CA 94143 > (415) 353-2122 clinic phone > (415) 353-2524 clinic fax > (925) 323-0175 cell phone > xxxxxx@ucsfmedctr.org > Confidentiality Notice: This message and any attachments are only for > the intended recipient(s) and may contain confidential, privileged > and/or protected health information. If you are not the intended > recipient of this message, please: 1) be advised that unauthorized > review, use, copying, disclosure, or distribution is strictly > prohibited and may be unlawful; 2) notify the sender of the delivery > by reply e-mail or contact RIC's Privacy Officer at 312.238.0766 or > xxxxxx@ric.org<mailto:xxxxxx@ric.org>; and 3) delete > and destroy all copies of the message and its attachments. 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