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“Spring and Fall Fashions in Cognitive Science” is the text of the first presidential address given to the Cognitive Science Society in 1986 (twenty years ago). It was the 8th year of the Society and the address was given by Zenon Pylyshyn whose book on “Seeing and Visualizing” is my latest fave. This paper is reasonably short and, unlike most of Pylyshyn’s writing, reasonably accessible due to the fact that:

“It was an after-dinner talk and should be read in that spirit, even though there is a serious message hidden in there somewhere”.

The serious message is a very important one. (Pylyshyn’s work is only “inaccessible” due to the information density of each sentence – he writes clearly, concisely and pleasingly, but each paragraph has rich and deep concepts to be considered making it difficult to read quickly – and this is not a criticism by any stretch of the imagination !!!)

Fashions come around again, and just as clothes are moving through the 80′s cycle, so it appears, are issues in cognitive science. Although perhaps it would be fairer to say that it has taken twenty years for people to understand the nature of these issues sufficiently to begin to consider them.

Interestingly, I am also only just beginning to appreciate the real quality of the Monash Psychology Department in which I spent my formative academic years: it was a purely experimental department (ie had no clinical programs) and had the reputation of being focussed on “rats and stats”, but in reality, it was a true cognitive science department with strength across all the fields which would currently constitute cognitive science of the sort alluded to below.

Finally, my conclusion. What do I think of Cognitive Science, I heard you ask (didn’t you?). I have always found psychology depressing because I came into it from physics and engineering thinking that, since it experimentally studied the human mind it was a science. I soon realized that it was not a science but a catalog, and a methodology for adding to the catalog. I don’t doubt that it is a useful catalog: it’s certainly important to know such things as how to help people who are depressed or to understand how people’s memory or opinions can be changed in emotional contexts or by clever questioning (say in eyewitness testimony). But many of us had hoped that there was a theoretical science like physics or chemistry there somewhere and we were disappointed. I now believe that the problem is simply that there is no unitary subject matter for psychology — it is not a natural scientific domain. But I find renewed hope now that within psychology lies one or more natural scientific domains, and that cognition, suitably circumscribed to include those aspects that are explainable in terms of symbol processing operations (together with the nonsymbolic mechanisms required to support symbol processing) may be one of those natural scientific domains.

I think that Professor Ross Day, founding chair of the Monash Psych Department, did an excellent job in circumscribing a natural scientific domain as the focus of his experimental psychology department.

Well I think I’ve finally sorted out how to keep my website a bit more organised. I’m over “hand-crocheting” websites, although the USMA Taekwon-do site is still hand-done. I’m using WordPress for most of my writing these days, and Aperture to manage my photos and make web albums. I’m beginning to play with video editing, but I haven’t really had enough time to do too much other than minimal work using iMovie to archive to DVD.

I haven’t found MediaWiki to be as good for collaborative writing as I thought it would be – maybe because I don’t always have access to broadband internet in the way I have grown used to (and possibly because I destroyed my MediaWiki installation through trying to move the index page … D’oh!). But on mature reflection, the most likely explanation is simply that wikis have a much more limited niche than initially anticipated. The more successful wikis (eg WikiPedia, various codices) seem to be those in which specific agreed-on content (documentation) needs to be collated efficiently by a group of people with overlapping knowledge that is not controversial. I beginning to be convinced that wikis are just not the right medium for creative content that “belongs to an author”, and wikis are not as useful as I envisaged for evolving my own ideas. The refactoring process feels inefficient with multiple versions of, for example, a Word document, but that is because the inherent nature of task (organising ideas into some sort of framework) is an inefficient process.

Spookily, I’m actually finding M$ Word and Powerpoint to be useful individual work tools, especially with Word’s new Notebook layout and the much improved Powerpoint > HTML conversion. Maybe the honeymoon period will end soon and I will have another go at wikis, but M$ is certainly heading in the right direction in terms of creating a tool that synchs with the way I actually work and makes it easy to give a face-2-face presentation which can be also web-distributed with minimal overheads.

I must be getting old because I’m also finding that communication spaces have shifted recently – I no longer use goofey, that wonderful little instant messaging service run at Monash way before anyone much was using online chat. It was an extremely efficient collaborative work tool as well as being an active online community and there were quite a few people I got to know on goofey before meeting them face-to-face. I have cycled through MSN, ICQ and email depending on who was limited to what by their workplace firewalls. I recently had a bit of a love affair with my new phone (a Nokia 6280) – the 2MP camera is pretty effective, and with a 2GB memory card, I no longer feel a need for an iPod. Most of the people I want to talk to will now engage in text messaging, and it’s probably my instant messaging medium of choice.

Almost a year of working at DSTO on the restricted Defence Network has desensitised me to the inconvenience of having inconsistent email availability – I can’t access DSTO email from anywhere other than on-site, but while I am at DSTO I can’t reach any of my other email accounts. All-in-all, just as the rest of the world is catching up to the “always-online” expectation, I have moved away from it a bit. I have pretty much managed to avoid MySpace and YouTube and almost all my email is work-related. In fact I rather like the idea of postcards and letters.

Hopefully with a revamped site based around WordPress, a totally cool MacBookPro, a camera, phone and video camera, I’ll be able to create good contet a lot more productively now.

I gave a talk last week on simulations in aviation and medicine as part of the MUVES seminar series at the University of Melbourne. It covers a wide range of ideas that I hope to capture better over the next few weeks and months.

- Link to powerpoint slides and notes

As an aside, I have recently installed Office 2004 for Mac and this is the first time I’ve used this version of Powerpoint – against all odds, I’m pretty impressed with the Presenter Tools which allow a timer, the notes and upcoming slides to show to the presenter while mirroring only the slideshow itself to the audience. I am also reasonably happy with the web output as per this link. It is now pretty straightforward to prepare a presentation, present it and post it on the web. And with the “save as picture” option for slides, Powerpoint becomes a fairly useful tool for preparing diagrams.

When the tool actually does the job I want it to, I am much less inclined to bag it – though I reserve the right to be deeply offended when people use the wrong tool for their job.