Tag Archives: Peter Aldhous

Unsolved Mysteries is my guilty TV watching pleasure, but I read New Scientist with pride

Journalism in the areas of crime, the supernatural and miscellaneous weird stuff are not my usual choices in reading or viewing, at least not in the daytime, but there’s nothing more fascinating than a mystery, except for a clever solution to a mystery. One interesting aspect of this compelling TV show from the United States, which is generally broadcast late at night around the weekend, is that every episode of Unsolved Mysteries involves facial recognition as the solution or an important element of the story’s mystery. Other types of visual recognition can be an important feature in the narratives. One episode of the show recently broadcast in Australia was a murder mystery in which a police officer who had just investigated a murder later attended the home of the victim’s girlfriend who had disappeared. Just by chance the police officer looked into a linen closet and noticed in there pillow-slips with a fabric design which matched the sheet that had been found wrapped around the boyfriend’s body. I’ll bet that’s a variety of visual recognition that the scientists haven’t named yet.

While catching up with reading some back issues of New Scientist magazine today I came across another story about a criminal conviction that resulted from some very sharp soft-furnishing fabric design recognition skills on the part of an American law-enforcement officer. It’s not a nice story, not nice at all, but at least there’s some inspiration to be found in the good people using technology to fight the vile crime of child sexual abuse. An investigator at the National Center for Missing and Exploited Children noticed that among the countless horrible images received at the NCMEC two were of girls of a similar age on what looked like the same bedspread of a distinctive appearance. I have no idea how the police trace these things, but the locations where that style of bedspread were sold were identified, and this was the clue that led to the identification of the children and the criminal. Google have developed for the NCMEC software designed to achieve similar feats of visual object recognition as the investigator’s human visual recognition of the bedspread. It is hoped that the automation of the identification of items of interior decoration in images of child abuse will help to solve more crimes. Of course, the NCMEC also works to identify the child victims of crime themselves, in the Child Victim Identification Program. Google, Yahoo and Microsoft are partners in the NCMEC’s Technology Coalition, and the application of technology to the task of identification is viewed as the only way to deal with the increasing volume of pornographic material submitted to the NCMEC every year.

Unsolved Mysteries   http://www.unsolved.com/

Peter Aldhous Fighting online child porn. New Scientist. April 9th 2011. p.23-24. http://www.newscientist.com/article/mg21028075.000-automating-the-hunt-for-child-pornographers.html

National Center for Missing & Exploited Children (US)  http://www.missingkids.com/missingkids/servlet/PublicHomeServlet?

Competition between reading and face recognition?

A box of text at the side of an interesting article about the promising new idea of “perceptual learning” in education in New Scientist magazine (from January this year) included a suggestion that literacy can interfere with face recognition ability, citing a paper by Stanislas Dehaene and other researchers which was published in 2010 in the journal Science. Dehaene is the author of the brilliant and readable book titled Reading in the Brain: the science and evolution of a human invention, which I have previously written about at this blog, and he is also a French professor who has expertise in the area of the neural basis of reading.

I’ve taken a look at the abstract of that journal paper (which is also available to read in full text on the internet) and I’m not sure that an interpretation that literacy is a burden on the brain is justifiable, as it appears that learning how to read enhances responses in a number of different parts of the brain, including enhancement of “visual responses in fusiform and occipital cortex…” I probably shouldn’t make too many conclusions after merely reading an abstract of a research report paper, especially in light of the fact that I’m not a qualified researcher or scientist myself. Nevertheless, perhaps this research supports my claims that there’s a close association between the different abilities in reading faces and in reading text, and that there is a link between my superior face memory, my synaesthesia which I share with some first-degree relatives, and the above-average and precocious literacy abilities that are found in myself and my fellow synaesthete relatives, and that the fusiform gyrus is the part of the brain that is the basis of these connected abilities. It would be interesting to know whether prosopagnosia and dyslexia are found together more often than one would expect by chance. I doubt that literacy can be blamed for any impairment in face recognition.

Stanislas Dehaene, Felipe Pegado, Lucia W. Braga, Paulo Ventura, Gilberto Nunes Filho, Antoinette Jobert, Ghislaine Dehaene-Lambertz, Régine Kolinsky, José Morais, Laurent Cohen How Learning to Read Changes the Cortical Networks for Vision and Language. Science.  Published Online November 11 2010 December 3rd 2010 Vol. 330 no. 6009 pp.1359-1364 DOI: 10.1126/science.1194140 http://www.soniclearning.com.au/documents/Seminars/DeHaene—how-reading-changes-the-brain2.aspx    http://www.sciencemag.org/content/330/6009/1359.abstract

Aldhous, Peter Learning without remembering. New Scientist. January 21st 2012 Number 2848 p.42-45. http://www.newscientist.com/article/mg21328482.100-learning-without-remembering-brain-lab-goes-to-school.html