Author Archives: DrJBN

Attention spreadsheet

Mike Le Pelley at University of New South Wales, implemented a “hybrid” model of attention based on models by Mackintosh (1975) and Pearce & Hall (1980) in 2004.  I’ve always tried to avoid the construct myself, but recent work has … Continue reading

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Got a dead screen on your awesome Cowon C2?

  The Cowon C2 is perhaps the greatest MP3 player ever made.  At some point, it may die on you.  The problem that many encounter is that the screen goes dead to the touch, or otherwise behaves incorrectly to touch … Continue reading

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Posted in Misc Fun Stuff | Tagged , | Leave a comment

3d Heatmap

My eye-data extraction program needed some upgrading and bug fixing.  What it does is read a series of datafiles produced by SMI Vision’s IviewX eye tracking software and displays the gaze data.   It scans each selected trial on each selected … Continue reading

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Posted in Eye Tracking, Programming in general | Leave a comment

Some single-subject data.

Using the learning game, one subject (a prominent member of the Learning field) was trained on an A:R+/B:R- discrimination.  In context A: the Red sensor indicated an attack (+), but in context B: the stimulus was presented without outcome (-).   … Continue reading

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3d plotting in Excel

Ever wanted to make a 3-d Scatterplot and find that Excel just won’t do it?  I have.  There are add-ins you can use, that are of limited help in most cases.  There are also commercial add-ins you can buy.  I … Continue reading

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Posted in Programming in general, Statistics | Leave a comment

Visualizing effect sizes, the effect of N, and significance.

In my previous post, I discussed effect sizes and provided one  conceptualization of them as measures of how easy it is to see your effect, unaided by measurement, in the population.  The two measures I am going to discuss here … Continue reading

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Posted in Statistics | Tagged , , , , | 2 Comments

Effect size rambling.

I am going to ramble about effect sizes.  Like anything I write about, I am sure the ideas are not new and have been written about by people much smarter than me.  But, I like to organize my thoughts and … Continue reading

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Posted in Statistics | 1 Comment