Krishna Shenoy discusses mind-reading

The Stanford School of Engineering has a monthly Ask the Expert series wherein a question is posed to a member of the engineering faculty. This month, the expert faculty is Professor Krishna Shenoy, and he is asked "Can we read thoughts, and are there ones we shouldn't". As Krishna responds, to a limited extent, the answer to that question is yes, enough that neuroethicists and neurobiologists are actively contemplating the future of those abilities. He goes on to describe the basics of his research, as well as research being done by Stanford Professor Bill Newsome. Krishna concludes by discussing the implications of recent advances in neuroimaging and interfaces between brains and machines.

Krishna's thoughtful response is easily readable both by neuroscientists familiar with the topic and by general members of the public. As such, it is well worth reading, and can be viewed over at the Stanford School of Engineering website.

Stanford School of Engineering: Ask the Expert

Science and the Arts: Neuro-Literary Criticism

The other day, I came across an article in the New York Times describing what some believe to be the “Next Big Thing” in literary criticism: Neuro-Literary criticism, neuro-lit crit for short. According to the article, entitled "Next Big Thing in English: Knowing They Know that You Know", liberal arts academics, particularly scholars of English Literature have begun to use neuroimaging to explore an array of questions in their field. Literature therefore joins fields such as history, political science, economics, and advertising in using functional magnetic resonance imaging to provide scientific legitimacy to a wide variety of theories and practices. The article is well worth a read, as it provides interviews with several literature researchers who are currently using fMRI to study literary questions such as the mechanics of reading, the ability of humans to interpret and track mental states, and the role of fiction in satisfying an evolutionarily determined desire to know the motivations and thoughts of others (this last being a theory developed by Stanford English Professor Blakey Vermeule. Of additional interest is a series of blog posts and associated reader commentary that discuss the practice and implications of neuro-lit crit.

One warning: no neuroscientists were directly consulted in either the main article or the associated blog posts. Indeed, this lack was of particular interest to me: it would seem obvious that if a neuroscience technique is being used, neuroscientists should be interviewed. However, the various researchers quoted in the article are all professors of English or Literature, with specific collaborations with neuroscience imaging labs left unmentioned (although one mention is made of a partnership between literary scholars and cognitive psychologists). I am left contemplating how much guidance from experienced neuroscientists the literature researchers are receiving, and indeed, how much guidance we should expect them to request.

Neuroscience is a field that in many ways is still in its infancy, with many associated techniques that have enormous potential to both power novel research and capture public imagination. No wonder academics from diverse fields are eager to examine their particular questions through the lens of fMRI. But I find myself wondering if neuro-imaging is a sufficiently nuanced technique that interpretation of its results must be done by someone with an advanced degree in neuroscience. Does using neuroscience techniques make the research neuroscience research, or does it remain literature research? And if using the techniques allows entrance into the scientific community (and access to scientific funding) for these literary researchers, should they be required to receive formal training in the techniques and field they have co-opted? Irrespective of the question of education, is it dangerous, or beneficial for neuroscientists and our public image that so many diverse groups have embraced our techniques and theories. In many ways this enthusiasm for applying neuroscience to human interactions reminds me of Social Darwinism. Will the beauty and deceptive simplicity of fMRI usher in an age of Social Neuro-imaging?

3 Comments

Astra Bryant

Astra Bryant is a graduate of the Stanford Neuroscience PhD program in the labs of Drs. Eric Knudsen and John Huguenard. She used in vitro slice electrophysiology to study the cellular and synaptic mechanisms linking cholinergic signaling and gamma oscillations – two processes critical for the control of gaze and attention, which are disrupted in many psychiatric disorders. She is a senior editor and the webmaster of the NeuWrite West Neuroblog

Stanford's Postdoc population at record high

Just published in the Stanford report is news that the number of post-doctoral researchers currently employed at Stanford is at a record high. As of the start of 2010, 1,754 postdocs are conducting research in various Stanford labs and offices, with two-thirds (1,179) working at the Medical School. Post-doctoral researchers compose a significant proportion of the Stanford community, numbering more individuals than any single undergraduate class.

For more numbers and descriptions of this massive workforce, head on over to the online article.

Comment

Astra Bryant

Astra Bryant is a graduate of the Stanford Neuroscience PhD program in the labs of Drs. Eric Knudsen and John Huguenard. She used in vitro slice electrophysiology to study the cellular and synaptic mechanisms linking cholinergic signaling and gamma oscillations – two processes critical for the control of gaze and attention, which are disrupted in many psychiatric disorders. She is a senior editor and the webmaster of the NeuWrite West Neuroblog

Celebrate Anniversary of First Spaceflight at NASA Ames

On April 9th and 10th, the NASA Ames Research Center in Mountain View will be joining over 120 other cities to celebrate Yuri's Night. The event commemorates two achievements, the first of Russian Cosmonaut Yuri Gagarin, who on April 12, 1961 became the first man to fly into space. The second achievement celebrates is the launch of the first Space Shuttle by NASA on April 12, 1981, exactly twenty years later. In honor of these grand milestones of human exploration, NASA Ames Research Center is hosting a two day party. April 9th is Multiverse Education Day, a free event for elementary, high school and college students lasting from 9am-3pm. Leading NASA scientists and Silicon Valley entrepreneurs will be giving talks; there will also be several exhibits, activities, workshops, and art.

Speakers include:

  • Pam Marcum (NASA), who will be discussing how astronomers use infrared light to explore the universe
  • Steve Wozniak on his life in general
  • Brian Day (NASA )on robotic missions, specifically the L-CROSS mission to the moon
  • Android Jones on using technology to create art
  • Jon Jenkins (NASA-SETI) on the Kepler Mission which is tasked with detecting Earth-like planets.

Exhibits include:

  • A portable planetarium from the CA Academy of Sciences
  • The RV-9A N42PE, aka how to build a home-made aircraft
  • Butterflies from the Space Station
  • An exhibit called Humpback Whales and Life in the Universe, which will "explore the unique collaboration between the Alaska Whale Foundation and investigators at the SETI Institute"
  • Grassroots Innovation by the people who bring you Maker Faire
  • Lego engineers: RC Airplanes and Helicopters
  • Many fun things from NASA, including tires/tiles from shuttlecraft, a 3D Mars Panorama that uses 3D glasses, and a human gyroscope

After all that fun is April 10th: the Festival Day, a concert festival lasting from noon to midnight. There will be lots of music, as well as more speakers and exhibits. Interesting speakers include:

  • Bruce Damer on Avatars, Life, The Universe and Everything, a talk on how the technology of James Cameron's film Avatar might be made manifest.
  • Ryan Wyatt of the CA Academy of Sciences, giving a tour of the Universe
  • Richard Garriott talking about "What happens when a video game designer gets to train as a cosmonaut and spend 10 days on the International Space Station

The festivities of April 9th are free and open to the public. April 10th's events require the purchase of a ticket, which can be done online for around $50.

For more information, and for full schedule information, including an extensive list of speakers and events, visit the website.

1 Comment

Astra Bryant

Astra Bryant is a graduate of the Stanford Neuroscience PhD program in the labs of Drs. Eric Knudsen and John Huguenard. She used in vitro slice electrophysiology to study the cellular and synaptic mechanisms linking cholinergic signaling and gamma oscillations – two processes critical for the control of gaze and attention, which are disrupted in many psychiatric disorders. She is a senior editor and the webmaster of the NeuWrite West Neuroblog

AAUW Report: Bias Persistant Hurtle for Women in Science

Some news from last week: the American Association of University Women has released a report discussing the persistant underrepresentation of women in science and engineering fields. Despite the increasing prominence of women in fields such as medicine, law and business, women remain remarkably underrepresented in science, technology, math and engineering. This issue, and how it could be resolved, has enjoyed much discussion, and now the American Association of University Women (supported by the National Science Foundation) weighs in with their report that highlights the role of environmental and social barrier in discouraging women from entering "hard science" fields. The report also includes up-to-date statistics on the participation of women in scientific fields, and concludes with some recommendations for how to entice women into science.

One main finding is that women are particularly sensitive to external suggestions regarding their ability to do well in science fields. The report cites research showing that womens' performance suffers following a suggestion that they are not good at math. On the other hand, the report finds that teaching women that such stereotypes will affect performance, will by itself reduce those effects.

A good summary of the report can be found at the NYTimes. Also of note are several letters sent to the newspaper which comment of the article; authors include the President of Mount Holyoke College, who comments on the success of women's colleges in supporting the entrance of women into science. As she points out, women's colleges generally have twice as many women majoring in math and science than at comparable coeducational institutions. As a graduate of another women's college (Bryn Mawr College), and as the sister of a Mount Holyoke student who recently chose to major in Computer Science and Math I can personally attest to the powerful role institutional culture can play in encouraging women to enter and succeed in scientific fields. And while attending a women's college is not the solution to the society-wide issue, the success of these institutions could inform how coeducational institutions can encourage women to study science.

For those of you interested in the report, it is available for download from the AAUW website.

1 Comment

Astra Bryant

Astra Bryant is a graduate of the Stanford Neuroscience PhD program in the labs of Drs. Eric Knudsen and John Huguenard. She used in vitro slice electrophysiology to study the cellular and synaptic mechanisms linking cholinergic signaling and gamma oscillations – two processes critical for the control of gaze and attention, which are disrupted in many psychiatric disorders. She is a senior editor and the webmaster of the NeuWrite West Neuroblog

The Aging Brain on Charlie Rose

Avaliable on Hulu: a special edition of Charlie Rose on the basis of memory and the effect of aging on brain function. Special guests include Dr. Brenda Milner, Dr. Larry Squire, Dr. John Hardy, Dr. Scott Small, and Dr. Eric Kandel.

All together, an amazing group of neuroscientists discussing a fascinating topic for the benefit of the general public. Neuroscientists may find the subjects familiar, but the experience of listening to luminaries in the field discussing their research is well worth the review. The language and subjects are certainly accessible for non-scientists (or non-neuroscientists), so tell your friends/family.

Charlie Rose: Brain Series at Hulu.com

UPDATE: The rest of the Charlie Rose Brain Series is also available online, at the main website for the Charlie Rose series. Subjects of past episodes include:

Future shows will air over the next year, and will cover a wide variety of subjects:

  • April 20: The Emotional and Vulnerable Brain;
  • May 25: The Anxious Brain;
  • June 22: The Mentally Ill Brain
  • July 20: The Disordered Brain
  • September 28: The Deciding Brain
  • October: The Artistic Brain
  • November: The New Science of the Mind
1 Comment

Astra Bryant

Astra Bryant is a graduate of the Stanford Neuroscience PhD program in the labs of Drs. Eric Knudsen and John Huguenard. She used in vitro slice electrophysiology to study the cellular and synaptic mechanisms linking cholinergic signaling and gamma oscillations – two processes critical for the control of gaze and attention, which are disrupted in many psychiatric disorders. She is a senior editor and the webmaster of the NeuWrite West Neuroblog

A Framing Dilema: Disease versus Discovery

[Authors Note: this post starts out as a relatively reasonable consideration of a question, but later morphs into a personal flight of fancy. Feel free to contemplate either the reality or the fantasy or both, as I will be doing.] What is the best way to prompt financial donations to research?

As a graduate student this isn't a question I have had much cause to consider. But yesterday, while meeting with a certain professor in whose lab I have been rotating, the subject was mentioned. Before returning to more pressing topics (aka the current status of my experiments), we talked about the need to develop for neuroscience a fundraising infrastructure similar to that possessed by cancer research. Cancer research, in addition to receiving federal funding from institutions such as the NIH is also fed money by fundraising organizations that appeal for research money directly to public citizens. Setting up a similar situation for neuroscience would not only serve to secure greater funding for research, but would also increase public perception of neuroscience research. Altogether, a win-win situation for neuroscience researchers.

However, my first reaction to the idea was one of skepticism. In my mind, cancer research holds an advantage in the fundraising area in that it seeks to actively cure a disease that the general public can intimately relate to. Most of the potential donators will have either experienced cancer first-hand, or will be only several degrees of separation away from someone who has. Diseases of the brain and potentially much more rare, or at least are more varied, less easily gathered under a single disease name. Cancers of every cell in the body, those possessing individual names, are still ultimately called cancer; the same is not true for diseases of the brain. Surely, I said to the professor, a successful fundraising campaign would require an overarching theme with which an individual citizen could intimately connect; not being the study of a umbrella disease like cancer, would neuroscience be able to generate a unifying principle that could engage the public, convincing them of the desperate need for their donations?

The professor responded that neuroscience didn't need to be about a disease, that the potential for making fundamental discoveries about how the human mind functions is more than enough to engage the public and drive a fundraising campaign. He pointed out that at its heart, cancer research is research about cell division, and that framed as such, neuroscience research has the potential to sound way more sexy, given a carefully considered series of catch-phrases. I freely admit that I never considered cancer research as the study of cell division. As someone intimately connected to the disease (and therefore exposed since an early age to cancer research fundraising campaigns), I have always contemplated the cancer research fundraising as a way to fund breaking research into therapies. But as a research scientist, I know full well that some of the money raised will go to answering basic science questions (such as those of cell division). The success of the cancer research fundraising campaigns is perhaps due to their ability to frame a wide field of research as aspects of an identifiable "enemy". A winning strategy to be sure - but must neuroscience do the same?

Over the past day I've been considering how else to push the need to fund neuroscience research without wielding the shadow of a disease. During the conversation that kicked off this introspective, I was reminded that neuroscience research is seeking to answer fundamental questions about how the brain works. Encapsulated within neuroscience research are questions about how humans sense our world, how we interact with our physical surroundings, and how the neurons (and glia) that compose are brain are capable of generating the realm of human consciousness and experience. Fundamental questions indeed. And in contemplating the enormity of the questions still unanswered in neuroscience I begin to wonder whether the enormity of our ignorance is enough to captivate the public (and, of course, to convince them to support the search for knowledge). Many fundraising slogans these days are derivatives of the theme of fighting a problem, helping people; these are powerful themes to motivate charity. But couldn't themes of discovery, finding the fundamental "how's" that define our individuality, be just as powerful motivators? Is neuroscience due for a introduction (reintroduction?) into public perception similar to that experienced by NASA during the height of the space race? Would attempting to convince more people that neuroscience research is an epic endeavor desirable for scientists? Could elevating the status of research encourage both increases in funding and draw more people to careers in science? I certainly don't know if such a reframing of neuroscience would be possible or successful, either monetarily or holistically. But with a firm personal belief that being as astronaut is just about the most awesome thing ever (a perception aided both by a youthful interest in the space race and a thorough exposure to the classic imagining of the future of astronomical discovery, aka Star Trek), I would love to see a future where a heightened public perception, and appreciation, of neuroscience research yielded both new knowledge and children who grew up dreaming not only of starships, but also of laboratories.

But returning to the original discussion, I'm left wondering which overarching themes in neuroscience research could be catch-phrased into the sorts of slogans appropriate for a P.R./fundraising campaign. Any thoughts?

2 Comments

Astra Bryant

Astra Bryant is a graduate of the Stanford Neuroscience PhD program in the labs of Drs. Eric Knudsen and John Huguenard. She used in vitro slice electrophysiology to study the cellular and synaptic mechanisms linking cholinergic signaling and gamma oscillations – two processes critical for the control of gaze and attention, which are disrupted in many psychiatric disorders. She is a senior editor and the webmaster of the NeuWrite West Neuroblog

Drs. Miriam Goodman and Merritt Maduke receive tenure

With the road to tenure universally acknolwedged as being long and arduous, it gives me extreme pleasure to pass along the news that Dr. Miriam Goodman and Dr. Merritt Maduke recently received tenure promotions from Stanford University. If you are in the greater Silicon Valley area, pop by Stanford this Friday, 3/12, to help us celebrate the promotion of these two excellent neuroscientists. The party will be in room 100 of Beckman, starting at 12 pm.

For information about the research of tenured professors Goodman and Maduke, wander on over to their laboratory websites.

Goodman Lab, studying sensory transduction in C.elegans.

Maduke Lab, studying chloride-selective ion channels and transporters.

Comment

Astra Bryant

Astra Bryant is a graduate of the Stanford Neuroscience PhD program in the labs of Drs. Eric Knudsen and John Huguenard. She used in vitro slice electrophysiology to study the cellular and synaptic mechanisms linking cholinergic signaling and gamma oscillations – two processes critical for the control of gaze and attention, which are disrupted in many psychiatric disorders. She is a senior editor and the webmaster of the NeuWrite West Neuroblog

This week in Science: Octopi and Flies and Polar Bears, oh my!

A quick perusal of the ScienceNOW new released from Science yields a couple of interesting stories fun enough to be shared, but short enough not to warrant full fledged posts. Therefore, here they are, collected in one glorious package. Octopus mimics Flounder, confuses predators and biologists. Mentioned by the Lab Spaces blog (and tweeted and re-tweeted on Twitter last week) is a description of a particular species of octopus that has developed a unique camouflage. The Caribbean octopus mimics the peacock flounder while it swims, presumably to discourage octopus-loving predators with the appearance of an unappetizing flatfish. ScienceNOW provides video of said octopus, doing its best flounder impression.

Early polar bear discovered in Arctic tundra. The fossilized (and presumably frozen) remains of an ancient polar bear has been discovered by scientists in Norway's Svalbard archipelago. The male polar bear lived approximately 120,000 years ago, which for those of you who are counting, was at a time when wooly mammoths were still around. For more on why this discovery is so awesome, see the linked article. Perhaps with this discovery, scientists can finally begin contemplating a most important topic: who would win, polar bear or wooly mammoth? (In the swimming portion of the competition, my money's on the bear.)

Fruit flies contain intrinsic autopilot. Scientists have shown that fruit flies are able to adjust to changing wind currents and flight conditions on a time scale quicker than would be possible if the adjustment was a conscious effort: video at link. This research potentially explains the difficulty of fly swatting.

The award for most cheeky article name goes to: "Why are Dung Beetles so Horny", which is in fact about the unusually large horns of female dung beetles. Originally thought to be used exclusively during fights between males, researchers have identified a role for the horns sported by females, which are sizably larger than those seen on males. In short, it seems that females use their horns to conduct sumo-like wrestling matches. The winner gets the larger ball of dung, and is therefore able to produce more offspring.

Comment

Astra Bryant

Astra Bryant is a graduate of the Stanford Neuroscience PhD program in the labs of Drs. Eric Knudsen and John Huguenard. She used in vitro slice electrophysiology to study the cellular and synaptic mechanisms linking cholinergic signaling and gamma oscillations – two processes critical for the control of gaze and attention, which are disrupted in many psychiatric disorders. She is a senior editor and the webmaster of the NeuWrite West Neuroblog