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Friday, February 27, 2009

Tow Article related to the issue in WA2 Q3

Our targeted issue is whether institutions or government should regulate the use of one inter-disciplinary technology, computational modeling in brain studies. Regarding this, two articles from IVLE work bin provide some helpful information.

Summary:
The first article titled “A computer that can ‘Read’ Your Mind” introduced an important breakthrough in understanding the brain and developing new computational tools.
Two researchers, a computer scientist, and a cognitive neuroscientist developed a computational model that enabled a computer to correctly determine what word a research subject was thinking about by analyzing brain scan data. Combining the brain scan information with the analysis of the text corpus, the computer then predicted the brain activity pattern of any concrete noun. This computational model provides insight into the nature of human thought. The work could eventually lead to the use of brain scans to identify thoughts and could have applications in the study of various mental diseases such as paranoid, schizophrenia, and semantic dementias. The article indicates the research in the field of computational neuroscience is promising and meaningful, which “opens up all sorts of new possibilities for looking into the fine structure of how patterns of brain activity relate to human thought process.”


The other article named “Ethics and mapping the brain” discusses legal and ethical questions such research as above raises and expresses concerns over its likely consequences.
Beginning with another article “Bioethics and the Brain”, a hypothetical scenario is given. It describes a pilot is fired by the airline due to her potential to develop schizophrenia based on her brain images. Then there is an example of such technologies in their basic form: fMRI, which shows significant correlations between lying and truth telling and the metabolic activity in the brain. However, institutions like the CIA and the FBI have not adopted this due to its immature development.
After the introduction above, ethical issues associated with brain imaging technology come up sequentially: setting bioethical standards for who should be tested, setting technological standards for what is ready to be used in the marketplace, agreement about the admissibility of this evidence in court, consent of a presumed testee, access to brain imaging data, and most controversially, a brain testing juggernaut for children.
At last, the writer emphasizes the importance of those ethical questions, which are to be answered by society, for the more and more reliable predictions from brain image may provoke reductionism, leaving influence of learning and environment ignored.

APA citation:
Marano, L. ( 2003, June 3). Ethics and mapping the brain ( An abridged version of the original in The Washington Times). Retrieved August 6, 2008, from the Centre for Cognitive Liberty and Ethics Web site:
http://www.cognitiveliberty.org/neuro/brain_mapping_ethics.htm

National Science Foundation. ( 2008, May 30). A computer that can ‘read’ your mind [ Press release 08-091].Retrieved August 6,2008, from
http://www.nsf.gov/news/news_summ.jsp?cntn_id=111641&org=olpa&form=news

Evaluation:
The first article provides comprehensive introduction to computational modeling in brain studies, explaining explicitly the knowledge of this system and how it helps to understand brain activities related to human thought process. Obvious benefits of this technology can be drawn from the content and these could be used to argue why institutions or government should adopt the application of computational neuroscience.

The second article focuses on bioethical aspect of this technology. It could be argued that institutions or government should regulate the use of it, in order to address the problems mentioned in the article and minimize negative consequence. Several standards suggested in the article, should be set to achieve the proper application of the brain imaging.

5 relevant definitions:

1.Functional magnetic resonance imaging, or FMRI, is a technique for measuring brain activity. It works by detecting the changes in blood oxygenation and flow that occur in response to neural activity – when a brain area is more active it consumes more oxygen and to meet this increased demand blood flow increases to the active area. FMRI can be used to produce activation maps showing which parts of the brain are involved in a particular mental process.

(By FMRIB Centre,Department of Clinical Neurology, University of Oxford. http://www.fmrib.ox.ac.uk/education/fmri/introduction-to-fmri/introduction)

2.Bioethics is the philosophical study of the ethical controversies brought about by advances in biology and medicine. Bioethicists are concerned with the ethical questions that arise in the relationships among life sciences, biotechnology, medicine, politics, law, philosophy, and theology.

3.computational model is a mathematical model in computational science that requires extensive computational resources to study the behavior of a complex system by computer simulation. The system under study is often a complex nonlinear system for which simple, intuitive analytical solutions are not readily available. Rather than deriving a mathematical analytical solution to the problem, experimentation with the model is done by changing the parameters of the system in the computer, and study the differences in the outcome of the experiments. Theories of operation of the model can be derived/deduced from these computational experiments.

4.Neuroimaging includes the use of various techniques to either directly or indirectly image the structure, function/pharmacology of the brain. It is a relatively new discipline within medicine and neuroscience/psychology.

5.Neuroscience is a field devoted to the scientific study of the nervous system. The Society for Neuroscience was founded in 1969,[1] but the study of the brain started a long time ago. Such studies span the structure, function, evolutionary history, development, genetics, biochemistry, physiology, pharmacology, informatics, computational neuroscience and pathology of the nervous system

1 comment:

  1. Detailed article. I wanted to give some insight on content i came across while reading on this topic. Brain imagery can lead to disastrous consequences. Already companies are selling personal details like our phone numbers and housing information without our information, imagine if companies sell your brain scan profile. people with 'potentially disturbed' brains won't even make it to interview rooms, not to mention limited access to insurance and the lot. Do more harm than good in my opinion

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