778 reputation
48
bio website
location Halifax, Canada
age 32
visits member for 2 years, 9 months
seen Dec 9 '13 at 3:06

Cognitive scientist, statistician, programmer, tinkerer


Feb
28
comment How can I create computer based psychology experiments using OS X?
Oh, and just a heads-up: the timing in that experiment is slightly non-optimal insofar as it uses the time at the beginning of the trial loop to label found responses during that iteration of the loop. Now that I think of it, there should probably be another "now = time.time()" line right above the "pygame.events.pump()" line, just in case there is a delay during stimulus presentation. In the end, though, this will all be obviated when I finish my side-project to update SDL1.2 & pygame to implement SDL1.3/2.0's high precision timer and event timestamping...
Feb
28
comment How can I create computer based psychology experiments using OS X?
Here's a zip of one of my moderately well-commented experiments: filedropper.com/castforweb
Feb
28
comment How can I create computer based psychology experiments using OS X?
I'll link the code from one of my experiments once I add some comments.
Feb
28
answered How can I create computer based psychology experiments using OS X?
Feb
18
awarded  Supporter
Feb
12
revised Obey any command given suddenly, as in the Jumping Frenchmen of Maine
multiple spelling/grammar corrections
Feb
12
suggested suggested edit on Obey any command given suddenly, as in the Jumping Frenchmen of Maine
Feb
8
comment How can consumers obtain an image and analysis of their own brain?
Also, be sure to ask (ideally ahead of time) for a copy of the raw anatomical data, not simply a print-out of a few slices. Bring a high-capacity USB stick to store it on.
Feb
6
comment What are good examples of applying dynamical systems in cognitive science?
Is Busemeyer's work really anything beyond application of decades-old models of perceptual decision making (diffusion, various accumulator models) to more abstract non-perceptual judgements?
Feb
6
answered What are good examples of applying dynamical systems in cognitive science?
Feb
3
comment What are different ways to determine centroids of fMRI activation, their drawbacks and perks?
@Ruben The reason is that as a discipline, cognitive science is stuck in a "jack of all trades, master of none" approach to training and conduct of research. That is, researchers try to take responsibility for too many roles in research (theoretician, empiricist, statistician, etc) and in doing so cannot provide deep expertise throughout. The superior alternative is to emulate the approach taken in physics and work in teams of specialists, including data analysts with PhDs in statistics who make their career contributing to statistical rigor and innovation.
Feb
3
awarded  Editor
Feb
3
revised What are different ways to determine centroids of fMRI activation, their drawbacks and perks?
Added discussion of mixture models with an explicit separation parameter.
Jan
30
awarded  Teacher
Jan
29
answered What are different ways to determine centroids of fMRI activation, their drawbacks and perks?
Jan
23
comment Perception of time as a function of age
There's definitely a finding that, when asked to produce time intervals, older individuals produce systematically longer intervals than younger individuals. I think there was a BBC documentary that "replicated" this live, but I can't remember its name nor the original reference...