FRAMING FAST-ForWord: AN ASSESSMENT OF JUDGMENTS ABOUT ISSUES IN MBE
Welcome to the first on-line developmental assessment for MBE!
The goal of the following assignment is to give you an opportunity to show how you make real-life judgments about complex issues in the field of Mind, Brain, and Education. Below, we provide you with some case study material about a popular educational intervention that claims MBE-type research backing. Take your time looking over the information we provide, including the articles under the research tab, before moving on to address the four broad questions we pose about the case.
Please use only the material presented here, and resist your urge to look for more information on-line.
Carefully read the case study material presented below. When you have finished reading this material, click on the Select link above, then click the LMBE icon on the homepage, and follow the "Take the LMBE" link to proceed to the assessment.
- Scientific Learning®
- background
- vision
- testing
- implementation
- claims
- research
Scientific Learning®Scientific Learning is a financially successful company that offers various educational services and products. Here is a brief history of the company, as found on the company's web site: Four dedicated individuals. One important mission.
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The Changing BrainAs a student at the University of Portland in the early 1960s, Michael Merzenich discovered an interest in science that led him to the field of neuroscience. He earned his Ph.D. in neurophysiology at Johns Hopkins and went on to the University of California at San Francisco, where he pursued his interest in how the brain processes information. Among his achievements: developing the cochlear implant, which electrically translates acoustic signals into the nerves used for hearing. During the 1970s and 1980s, Merzenich and his colleagues at the University of California, San Francisco, ran a series of experiments designed to illuminate how the brain interprets stimuli. They discovered that the brain actually changed physiologically when it learned or experienced something new. More significantly, collaborative experiments by Merzenich and William Jenkins, Ph.D.—who joined the UCSF lab in 1980—showed that the adult brain also demonstrated change and adaptation in response to behavioral stimuli. “We established that the brain is modified on a substantial scale, both physically and functionally, each time we learn a new skill or develop a new ability,” said Merzenich. “Our brains were created to reinvent and reconfigure themselves throughout our lifetimes.” This ability is known as brain plasticity. Another exciting discovery emerged when Jenkins spearheaded a study that showed progressive training could actually accelerate the rate at which the brain changed. Auditory Processing and LanguageMeanwhile, Paula Tallal was pursuing her Ph.D. in experimental psychology at Cambridge University. She theorized that the speech and language difficulties of children suffering from language-learning difficulties were related to auditory processing problems, meaning that the children had difficulty distinguishing between speech sounds. She found that that these children did well discriminating long-duration speech sounds, but had trouble differentiating rapid sounds such as the consonant sounds “ba” and “da.” Intrigued, she used a computerized speech synthesizer to extend the duration of these quick sounds and tested the children with the modified sounds. Amazingly, the children were now able to distinguish between the sounds. “This was a unique and completely novel finding,” says Tallal. “We were able to find the root of the difficulty in temporal-spectral processing, and you could manipulate the results by changing the duration of the sounds.”
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A Meeting of the MindsThe Santa Fe Institute is a think tank devoted to fostering multidisciplinary collaboration between scientists who might not otherwise work together. In 1993 the institute held a conference at which Merzenich, Tallal, and Steven Miller—who was working with Tallal as a post-doctoral graduate student—were invited to present their research. When she and Merzenich heard each other speak, says Tallal, it all fell into place. “It really clicked that we should work together,” she says. Merzenich saw the possibilities, too. “Bill Jenkins and I had discussed using our training tools, as applied in monkeys, for impaired human populations, and we both realized that Paula’s kind of kid problem might be addressed with our kind of solution,” says Merzenich. The four scientists obtained research funding to develop model training tools. Jenkins took the lead on creating the computer software that would be the foundation of the training components. Jenkins and his team developed complex algorithms that could stretch the speed and enhance the components of speech, but the challenge was how to package the software so it would engage children. The solution? Make a game of it. The software component used to train the brain to increase its sampling-rate characteristics was disguised as something called Circus Sequence, while another component became Old McDonald’s Flying Farm. Within six months, Jenkins, Merzenich, and their colleagues had a prototype product ready to go.
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Putting it to the Kid TestTallal and Miller focused on setting up a “summer-school” study at Rutgers University designed to evaluate the efficacy of the software. They ran the first study for four weeks in July of 1994 with seven children. “Six of the seven children made very substantial improvements,” says Tallal. “We were blown away.” Although the scientists were eager to bring the product to market on the strength of those results, they decided to run a second study with a larger sample group. In the summer of 1995, the product, which by then had been substantially refined by Jenkins, was set for a second test. This study included 22 children broken into two groups matched for age, intelligence, and language impairment. One group used the software product with acoustically modified speech; the second group performed the same speech-therapy exercises using non-processed speech. This time, the results were stunning. The children using the version with acoustically modified speech showed a huge improvement in the rate of auditory processing. “The results were spectacular,” says Tallal. “We moved many of the kids well into the normal range, and that’s what I didn’t think could happen. I did not think you could change something as basic as a psychophysical threshold to that degree.”
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Taking the Next Step
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Product claimsScientific Learning offers a variety of computer based educational interventions. Here is a description of their most successful product, as found on their web-site:
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Preliminary research baseHere are the original articles that provided the research base for the company and its products: Michael M. Merzenich, William M. Jenkins, Paul Johnston, Christoph Schreiner, Steven L. Miller and Paula Tallal. "Temporal processing deficits of language-learning impaired children ameliorated by training" Science, New Series, Vol. 271, No. 5245 (Jan. 5, 1996). Paula Tallal, Steve L. Miller, Gail Bedi, Gary Byma, Xiaoqin Wang, Srikantan S. Nagarajan, Christoph Schreiner, William M. Jenkins, Michael M. Merzenich. "Language comprehension in language-learning impaired children improved with acoustically modified speech." Science, New Series, Vol. 271, No. 5245 (Jan. 5, 1996). Popular pressHere is the article from the New York Times that sparked wide public interest in the company's services. Blakeslee, Sandra. "Glasses for the ears: Easing children's reading woes" The New York Times. (Nov. 15, 1995). Continued research baseScientific learning continues ongoing research about the efficacy of their product. Here are two documents about this facet of the company. One document is a government agency's report summarizing the results of these continuing research efforts, and one an example of the kind of studies they do. What Works Clearinghouse (2007, July), Beginning reading: Fast ForWord. U.S. Department of Education: Institute of Education Sciences. Scientific learning Corporation (2005). Improved early reading skill by student in the Springfield School district who use Fast ForWord to Reading 1. MAPS for Learning: Educator Reports, 9(25) 1-5.
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