Fiona McPherson's blog

Normal is a label too

We all like simple solutions. However much we may believe we are ‘above’ black-&-white dichotomies, that of course we understand that every situation is complex, nevertheless we have a brain that can only think of a very very few things at once. So it's unsurprising that we are drawn to solutions that can be summed up simply, that can fit comfortably within the limitations of working memory.


Mottron, L. (2011). Changing perceptions: The power of autism. Nature. 479(7371), 33 - 3

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A home for dementia sufferers

A quick note, because I was so impressed by this and wanted to help spread the word! The Guardian has an article about a purpose-built village for those with advanced Alzheimer's. Here's what it says about it: "A compact, self-contained model village on a four-acre site on the outskirts of town, half of it is open space: wide boulevards [but no cars!], cosy side-streets, squares, sheltered courtyards, well-tended gardens with ponds, reeds and a profusion of wild flowers.

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The fallibility of human memory

I don't often talk about eyewitness testimony, but it's not because of the lack of research. It's a big field, with a lot of research done. When  I say I don't follow it because I regard the main finding as a done deal - eyewitness testimony is useless - that's not meant to denigrate the work being done. There is, clearly, a great deal of value in working out the exact parameters of human failures, and in working out how we can improve eyewitness testimony. I just arbitrarily decided to ignore this area of research until they'd sorted it all out!


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Choosing when to think fast & when to think slow

I recently read an interesting article in the Smithsonian about procrastination and why it’s good for you. Frank Partnoy, author of a new book on the subject, pointed out that procrastination only began to be regarded as a bad thing by the Puritans — earlier (among the Greeks and Romans, for example), it was regarded more as a sign of wisdom.

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Practice counts! So does talent

The thing to remember about Ericsson’s famous expertise research, showing us the vital importance of deliberate practice in making an expert, is that it was challenging the long-dominant view that natural-born talent is all-important. But Gladwell’s popularizing of Ericsson’s “10,000 hours” overstates the case, and of course people are only too keen to believe that any height is achievable if you just work hard enough.

The much more believable story is that, yes, practice is vital — a great deal of the right sort of practice — but we can’t disavow “natural” abilities entirely.


Campitelli, G., & Gobet F. (2011).  Deliberate Practice. Current Directions in Psychological Science. 20(5), 280 - 285.

Campitelli, G., & Gobet, F. (2008). The role of practice in chess: A longitudinal study. Learning and Individual Differences, 18, 446–458.

Gobet, F., & Campitelli, G. (2007). The role of domain-specific practice, handedness and starting age in chess. Developmental Psychology, 43, 159–172.

Hambrick, D. Z., & Meinz, E. J. (2011). Limits on the Predictive Power of Domain-Specific Experience and Knowledge in Skilled Performance. Current Directions in Psychological Science, 20(5), 275 –279. doi:10.1177/0963721411422061

Hambrick, D.Z., & Engle, R.W. (2002). Effects of domain knowledge, working memory capacity and age on cognitive performance: An investigation of the knowledge-is-power hypothesis. Cognitive Psychology, 44, 339–387.

Hambrick, D.Z., Libarkin, J.C., Petcovic, H.L., Baker, K.M., Elkins, J., Callahan, C., et al. (2011). A test of the circumvention-of-limits hypothesis in geological bedrock mapping. Journal of Experimental Psychology: General, Published online Oct 17, 2011.

Hambrick, D.Z., & Oswald, F.L. (2005). Does domain knowledge moderate involvement of working memory capacity in higher level cognition? A test of three models. Journal of Memory and Language, 52, 377–397.

Meinz, E. J., & Hambrick, D. Z. (2010). Deliberate Practice Is Necessary but Not Sufficient to Explain Individual Differences in Piano Sight-Reading Skill. Psychological Science, 21(7), 914–919. doi:10.1177/0956797610373933


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