Professor at University of Tasmania, Mathematical Psychologist
Australia
Joined August 2018
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Scott Morrison: Declare a climate emergency chng.it/MY68vfsX via @ChangeAUS
Andrew Heathcote retweeted
I'm thrilled to finally share our pre-print on using cognitive process modeling to address context independence violations in the ABCD Study stop-signal task! The culmination of over a year of work with @dora_matzke, @CharlotteCTanis and @AndrewHeathcot8...
Cognitive process modeling addresses context independence violations in the ABCD Study stop-signal task biorxiv.org/cgi/content/shor… #biorxiv_neursci
Andrew Heathcote retweeted
New #AllThingsCognition podcast episode @lmickes interviews Andrew Heathcote @AndrewHeathcot8 on #gocrpi paper on predicting brief changes in workload
wp.me/p8IxYp-1V1
wp.me/p8IxYp-1V1
Andrew Heathcote retweeted
Stay tuned to the @CompBrainBeh account: in the next two weeks we will feature a different accepted paper each day! Many of them discuss the important topic of robustness and reproducibility in computational modeling of cognition.
Andrew Heathcote retweeted
Our paper got published in PNAS this week! It's a cool study of big data from Lumosity's brain training platform. We learn about task switching, practice, and the effects of age: pnas.org/content/early/2019/…
Finally out after a long wait, a fast way to do Bayes for simulation only models, but also some cautions about the pitfalls ... link.springer.com/epdf/10.37…
Want a tractable measurement model of multi-alternative choice that can handle competition phenomena and Hicks Law?
van Ravenzwaaij, D., Brown, S.D., Marley, A.J. & Heathcote, A. (in press) Accumulating advantaged, Psychological Review.
dropbox.com/s/bmpiv40km8ucqn…
You can now use this approach to get Bayes Factors for any model implemented in DMC (osf.io/pbwx8/), just remember, think about your priors!
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Huge amount of work by Dora on a hard problem with an important lesson: recovering estimated parameters does not necessarily mean your model is identified!
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Probability Density Approximation (PDA) lets you do full Bayes estimation for a model you can only simulate. This paper with @YiShinLin1 in press at BRM explores CPU/GPU speed ups and tweaks to standard sampling needed to make it work tascl.org/uploads/4/9/3/3/49…
Surprising finding from new modeling dora.erbe-matzke.com/papers/… that it is not traditional stop-signal RT that is linked to real world impulse control but rather failures to attend to the goal of stopping (see also dora.erbe-matzke.com/papers/…)
Reliability of triggering the inhibitory process is a better predictor of impulsivity than SSRT. Updated version based on reviewer comments online at psyarxiv.com/vg5rd/ @PsyArXiv Code @OSFramework @AndrewHeathcot8 @dora_matzke
Andrew Heathcote retweeted
The next issue of Computational Brain and Behavior is now available:
link.springer.com/journal/42…
There is some really interesting new multi-disciplinary work in this issue. Keep an eye on @CompBrainBeh for highlights!
This new modeling allows you assess the ability to inhibit responses to difficult choices, I think it has potential to greatly expand measurement and understanding of cognitive control.
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More work with Alex Weigard (inc. a new LBA model of the flanker task)
Weigard et al. (in press). A cognitive model-based approach to testing mechanistic explanations for neuropsychological decrements during tobacco abstinence. Psychopharmacology.
tascl.org/uploads/4/9/3/3/49…
New work with Alex Weigard applying the LBA to ADHD
Weigard, et al. (2018). Testing formal predictions of neuroscientific theories of ADHD with a cognitive model–based approach. Journal of Abnormal Psychology, 127(5), 529.
tascl.org/uploads/4/9/3/3/49…
Free download link for a new paper in Journals of Memory and Language developing and testing a process model of source memory protect-au.mimecast.com/s/Fk…
Andrew Heathcote retweeted
If you ever get asked why you should use DuckDuckGo instead of Google, here's a definitive answer by @yegg:
quora.com/Why-should-I-use-D…
Based on feedback from modelbasedneuroscience.com/ just held in Amsterdam an update of the Dynamic Models of Choice software for Bayesian estimation of evidence accumulation models is available at osf.io/pbwx8. Thanks to everyone who attended!
I always wondered by postdocs are payed so poorly in the USA
youtu.be/109agvZr1vs?t=1238
ineteconomics.org/perspectiv…
