4,022 reputation
1434
bio website chil.rice.edu/jzemla
location Houston, TX
age
visits member for 2 years, 7 months
seen Jul 22 at 19:58

Feb
14
revised Is it easier for people to remember longer words than words mixed with symbols?
added citation for link
Feb
14
suggested suggested edit on Is it easier for people to remember longer words than words mixed with symbols?
Feb
14
comment Why do you sometimes write down one word while actually intending to write another?
@Mien I don't know of a paper that specifically looks at that aspect (though there may be one-- I haven't looked). However, 1) if you're willing to accept that Dell's model affects your tongue and jaw muscles, it seems a small leap that it would affect your fingers as well; 2) Botvinick & Plaut (2004) present a popular connectionist model of motor action selection that references Dell several times-- probably a good place to start.
Feb
12
comment Do porn and other remotely perceived entertainments work because of Mirror Neurons?
@Comptrol Ben is not refuting your claim. See ahealthymind.org/library/Hickock%20Mirror%20neurons%2009.pdf for a review on the controversy (from one perspective).
Feb
11
revised Do porn and other remotely perceived entertainments work because of Mirror Neurons?
edited tags
Feb
11
comment Why do dual N-back games use certain letters?
I don't know that it always has to use those letters. (see www.brainboffin.com; also, a quick lit search shows it's also been done with numbers and Mandarin phonemes). I suspect it's partly to do with the phonetic properties of the sounds, as Ben Brocka suggests, and partly because the dual n-back has mostly been run by a single lab (Jaeggi). It's easier for them to consistently use the same experimental setup, and increases their chances of reproducing the effect.
Feb
10
answered Study on commitment and follow-through
Feb
9
awarded  Enlightened
Feb
9
awarded  Nice Answer
Feb
8
answered Is there a complete cortico-cortical connectivity map based on a useful partitioning of the cortex?
Feb
7
awarded  Quorum
Feb
6
awarded  Commentator
Feb
6
comment What skills are required to build simulations of the human brain?
Suggested requirements: a) a post-graduate degree in cogsci or related field and b) several years experience programming AI
Feb
6
answered What are good examples of applying dynamical systems in cognitive science?
Feb
4
comment What are different ways to determine centroids of fMRI activation, their drawbacks and perks?
I have a lot of issues with 'standard' fMRI analysis myself; but I don't know that this is one of them. H1 is "is this brain region involved in the function we are testing". The activation level doesn't tell you "how much" a region is involved in a function, it's simply a matter of power to detect whether H1 is true. Activation level can be heavily dependent upon a lot of experimental design issues-- e.g., event vs block related, canonical HRF vs temporal derivative, etc. If you're interested in level of activation, you can use a parametric design-- but that requires a different analysis.
Feb
3
answered What are different ways to determine centroids of fMRI activation, their drawbacks and perks?
Feb
3
comment What is the most complex artificial neural network created to date?
@Ben good question! hehe
Feb
3
comment What is the most complex artificial neural network created to date?
@Ben I don't think number of synapses or neurons (termed neural complexity in the paper you cite) is an accurate way to measure complexity in the way you are thinking about it. I can build an ANN with a billion hidden units that does nothing but compute a XOR function. The paper's other form of complexity (informational complexity) is very specific to the function you are trying to implement. Perhaps you are after the question of biological realism? That seems to be one of Blue Brain's primary objectives, though admittedly I don't know a lot about the project.
Feb
2
comment What is the most complex artificial neural network created to date?
define complex...
Feb
1
answered Effectiveness of recalling information in the same location it was learned