Author name: Matthew T. Dearing

A Little Research in the Early Morning

The DPRI AmSci Journal does focus on reporting great opportunities to do real research as a citizen scientist. But, we cannot stress enough the importance of keeping your eyes open at any moment for the science discovery that might present itself just to you. It might not be a profound discovery never seen by any other human being, but it might still be intriguing, inspirational, and breathtaking.

In fact, we’re starting a new category called “Inspiring Citizen Science” to present how others experience great personal moments in science discovery–large and small–and how you might be inspired to enjoy exploring as a citizen scientist.

Please read the following post from a woman who has moved out into the wilderness to start a new life, and be inspired by her openness to interact with the world around her…


“Inner Children will be Children” :: Liven’ the Life by Meg Menkedick :: July 21, 2008 :: [ READ BLOG POST ]

If you have a personal science experience that you would like to share with the other readers of the DPRI AmSci Journal, please submit your story to the publisher or post your own Citizen Science Public Journal Report.

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Optical Tweezers Guide Neuronal Growth

In one of the many proverbial past lives of this author, I worked on research to help advance the technology of optical tweezers. In particular, I worked with my research group at Illinois Wesleyan University in collaboration with the University of Chicago to develop the first holographic optical element that patterned a laser beam into a pre-defined organization of focused spots, each of which successfully trapped microscopic particles. This work on Holographic Optical Traps (HOTs) actually lead to the commercialization of the technology at Arryx, Inc.

The beauty of the creation of optical traps with focused laser light is that if the correct wavelength is selected, then biological material–in particular, neurons–won’t absorb the light, heat up and die. They can, however, still feel the forces resulting from the changing electromagnetic field as the laser beam focuses and de-focuses through the cell.

So, neurons are interconnected by complicated networks. There is some sort of structural pattern to this network, albeit the specifics of this structure remain unknown and not well understood. But, if we want to create devices that integrate networked neurons on computer chips, then we might want to be able to have a high degree of control in patterning the cells’ positions so they network together such that they may communicate in powerful ways, yet also connect efficiently to pre-fabricated electrodes through which a computer might actually record and control their electrical activity.

An optical tweezer as a non-invasive, but fully patternable positioning device is then certainly an intriguing tool that could prove quite useful in the future field of neurotechnology. A research group at St. Andrews University has recently tested a simple line optical tweezer and is currently studying its affects on how it might direct the growth cones of developing neurons.

The fundamental mechanism of how the cells react to the focused laser light is not yet known, but there is an observed interaction. The current observation is that the forces resulting from the focusing and defocusing laser light is providing a torque force on the filopedia–the tiny protrusions that guide the growth cones of a neuron’s axon–and direct them to line up with the path of the line optical trap.

Check out this exciting research, and envision how it can someday be quite influential in the capabilities of neurotechnologies. We’ll be closing watching the developments here from Neuron News.

“Lasers guide neuron growth” :: optics.org :: July 21, 2008 :: [ READ ]

“Guided neuronal growth using optical line traps” D. J. Carnegie, D. J. Stevenson, M. Mazilu, F. Gunn-Moore, and K. Dholakia, Optics Express Volume 16, Issue 14, pp. 10507-10517 (2008) :: [ READ THE ABSTRACT ], which includes a link to read the full text of the research article.

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Human v2.0 and the Singularity

It’s already 2029 and the unthinkable has happened. Human beings are drastically altered into a new existence; a new species because of profound technological advances of computing power, which now equals that of the human brain. Welcome to The Singularity.

It’s not clear if this prediction is a good thing or a bad thing. What do you think? First broadcast nearly two years ago, the BBC produced a hyper-dramatic review of the run-up to this potential event. As technological developments continue to inch forward into brain-computer interfacing as well as advanced understandings of brain function, it is important to consider the possible ramifications of these developments. This is where the ethics of neurotechnology comes into play. However, we must be entirely reasonable about these considerations, and unfortunately this BBC broadcast is a bit–OK, it’s nearly obnoxiously–fear-mongering about where we might be headed.

(My wife–who is a huge Harry Potter fan–also questions their contract rights with using the theme music!)

In particular, let’s assume for the moment that computing “power” (however this might be defined) does match that of the “power” of the human brain. The projection of the Singularity Event is that this will somehow directly lead to a fundamental change in the human being… a Human v2.0, if you will. Hopefully, our global society will complete a thorough beta test before releasing the final upgrade to the general public!

But, there really is an enormous leap in this assumption of change. If we see computing power resemble computational abilities of humans, then why would this necessarily change us? It certainly could change us fundamentally, but the only way for this to occur is to also have the technology to integrate the human brain with a computer.

Precisely fabricated computer chips and mushes of neuron networks are different. And, they are different at basic, fundamental levels. We can pretend to make software look like neuron networks, but the software is only processed by computer chips. There really is no comparison to how each computational entity functions. So, fully interconnecting the two so that one might fundamentally change the other is a non-trivial task–to say the least–and may even be fundamentally impossible.

Although the following episode feeds a bit too much on the fear of what could happen to humanity with the ultimate success of neurotechnology, it still should be considered and reviewed for a better understanding of how to approach the developments.

Human v2.0 :: BBC Horizons Science & Nature :: October 24, 2006 :: [ VIEW ]

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How Neurophilosophy Might Help Neurotechnology

The following posting is inspiring a brand new Topic Category for Neuron News that will cover Neurophilosophy. This area of discovery might be hard pressed to call itself “scientific,” and therefore at first glance might seem to be not so useful to technological developments involving integration with the brain.

However, a full interconnection between the computer chip and the brain will require a full understanding of brain function… and we certainly are very far from this goal. We are still somehow distinguishing the “mind” and our “consciousness” as a separate entity from the guts of our brain. You know, it just seems like there is something more; something greater in our heads than just a bundle of electrically active cells. But, when you look inside, there really just is a bundle of electrically active cells connected together in a very complicated way.

Our sense of the “mind” must come from this complex interconnection. So, just as looking deeply from the bottom up in order to discover how the complex bundle outputs the “mind” seems to be entirely reasonably, at this point in our severe lack of understanding, there is no reason why not to also look deeply from the top down in order to discover the wildly vast conscious behaviors of the “mind” and how that might relate to the electrical bundles.

Dr. Jill Bolte Taylor, a Harvard-trained neuroanatomist who is now affiliated with the Indiana University School of Medicine, had a stroke on the morning of December 10, 1996. She underwent surgery to remove a major blood clot, and is fortunate to have recovered from the trauma and is alive and well today.

The extraordinary aspect of her story, however, is that Dr. Bolte Taylor had a thorough understanding of the brain at the time of her stroke. While her brain vessels were exploding in her head, she experienced a entirely alien and altering state of consciousness… but, she could relate this experience to a real understanding of brain function. Although zoning in and out of “la-la land’, she could later recollect the specifics of what she was literally experiencing during her brain malfunction. This is absolutely invaluable insight into gaining a better understanding of how our brain function.

Dr. Bolte Taylor also realizes the importance of her ability to contribute valuable information, and is currently communicating to the world her personal experience. Although a little dramatic, her presentation to TED.com is certainly very worth the 18 minutes viewing time, and it might even be a little inspiring. If anything, there is real information here… at least in the form of a potential leap in a future deeper understanding of brain function — from the top down. (And neurotechnological developments needs all of the further understandings of brain function that they can get!)

Jill Bolte Taylor’s Powerful Stroke of Insight talk on TED.com [ LINK ]

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Galaxy Zoo gets Googled

Google is making a $50,000 financial connection with Galaxy Zoo to support the continued development of the program, and to extend the reach and usability of GoogleSky. Professor Bob Nichol, a Galaxy Zoo team member and faculty at the University of Portsmouth, is the recipient of the grant.

Google sure is getting into everything these days… sound like a familiar Mr. Gates a few years back? … fortunately, the technology is pretty great for assisting amateur scientists to great things!

“Zoo receives cash boost from Google” :: University of Portsmouth News :: July 10, 2008 :: [ READ ]

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Historical Archaeology perfect for Amateur Researchers

The Division of Historical Resources in New Hampshire is offering a wonderful opportunity for citizen scientists to learn new skills, have some summer fun “hunting in the woods,” and to provide important discoveries on regional historical landmarks and resources.

There is no digging required, just a little bug repellent (and apparently a small fee of $25 to help cover the basic costs)… and short training courses, or “field schools,” are available to prepare the inexperienced. In particular, the State Conservation and Rescue Archaeology Program (or SCRAP) is looking for locations of old building foundations–called cellar holes–from communities that once existed in the 19th and early 20th centuries.

“Amateur archaeologists, can you dig it, carefully?” :: by Dave Brooks :: The Nashua Telegraph :: July 16, 2008 :: [ READ ]

Learn more about historical archaeology from The Society for Historical Archaeology, including their Current Project List.

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Last updated June 20, 2022