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location Tel Aviv, Israel
age 32
visits member for 2 years, 11 months
seen Dec 10 at 13:28

Studying neuroscience at the Hebrew University.

My main interest is how the cognitive system combines prior knowledge about the world in the process of perception.


Sep
21
comment What is the threshold where actions are perceived as “instant”?
There is a difference between the question "what is the smallest time interval between 2 stimuli we can discriminate" and "what is the smallest time interval between action and response that we can discriminate". If we perform an action that is expected to have an immediate response, we are much more likely to perceive the response as immediate. We don't have such predisposition for 2 stimuli. So I would assume we perceive as instantaneous much larger time delay for action-response than the time interval needed to tell 2 arbitrary stimuli apart.
Aug
24
comment What psychophysical research published its data?
Thanks. Its a nice resource, although really not what I am looking for - they provide only an aggregate of the number of times (or probability) each subject responded in each possible way, in each condition. The main feature I'm looking for is the full sequence of trials and responses.
Aug
18
comment Does not consistently providing a reward strengthen operant conditioning?
psycnet.apa.org/journals/bul/47/3/193 might be a relevant reference.
Aug
18
comment Which type of stimulus results in an optimal learning curve for rats and mice?
related: cogsci.stackexchange.com/questions/510/… and cogsci.stackexchange.com/questions/1092/…
Aug
8
comment What is a source of case studies of personality disorders?
This seems like a totally legit question to me. An analogous question from stackoverflow stackoverflow.com/questions/2301555 - Where can I learn algorithms and data structures from? I learned a lot from other people's answers there.
Jun
27
comment Is there a canonical reference for behavioral, attentional, and memory tests?
And, I think cogsci community has a good chance of creating such a resource...
Jun
11
comment Fitting a psychometric function when data does not lend itself to a sigmoidal fit [pypsignifit]
Is this a Yes/No task, or a 2AFC design?
Mar
15
comment Is pedophilia a sexual orientation or a mental disorder?
What does it mean that "The only symptom of being heterosexual is a sexual attraction to members of the opposite sex" ? We can surely find measures in which heterosexual men are different, as a group, from homosexual men, besides their sexual preference - average number of sexual partners in a year, amount of body hair, number of annual visits to a theater, etc. Do any of these qualify as a symptom of being heterosexual/homosexual? (my examples are based on the common stereotypes, not actual research, but the point is, such group differences exist, even if the ones I mention are incorrect).
Mar
15
comment Is pedophilia a sexual orientation or a mental disorder?
Everything is "physical, psychological or neurological" - The fact that most of us like the smell of flowers but not the smell of vomit, and the fact that most people are not sexually attracted to children, but some people are. So yes - "a mental disorder is simply a matter of terminology for atypical behaviour", but it is backed up by physical, psychological or neurological traits/facts/symptoms, just like everything else.
Mar
14
comment Is pedophilia a sexual orientation or a mental disorder?
This is an interesting question, but it has nothing to do with cognitive science. The classification of something as a mental disorder is a sociological, philosophical, legal, normative question, but not a cognitive one. For example, if someone likes the smell of vomit, is that a mental disorder? If he likes it so much that he smears all his clothes in vomit?
Feb
10
comment How do Hemispatial Neglect patients react when told of their disability?
I think this question can use a more specific title. something like "Can Hemispatial neglect patients focus on the neglected side if explicitly told to do so?" or "Are hemispatial neglect patients aware of their neglect?"
Feb
8
comment What processes underly confidence ratings in cognitive decision-making?
I think you should remove the word probability from the title - confidence and probability are two very different things. For example, in many decision making experiments subjects have to choose between 2 alternatives, each giving a different reward with a different probability (two armed bandit). This tests, among other things, their perception of reward probability, but doesn't tell us much about their confidence. So asking how people estimate probabilities in general, and how people estimate their confidence are 2 different questions.
Feb
3
comment How does task difficulty schedule affect the rate and efficiency of perceptual learning?
Thanks for the detailed answer. BTW: Merav Ahissar is my PhD advisor :) ... What motivated this question was my feeling that some of these claims are based on 'experimenters experience' rather than on actual rigorous testing of the matter. I'll check out the other leads.
Jan
26
comment Cognitive explanation of why beta blockers are effective for anxiety
"What is the cognitive explanation of the reduction in symptoms?" or should that be "What is the cognitive explanation of the fact that a reduction in symptoms causes a reduction in anxiety?"
Jan
25
comment What are the “Must Know” papers of Cognitive Science?
@StevenJeuris - About scope, its intensionally wide. Inside my fields of expertise (Perception and perceptual learning) I believe I know the important works. I was wondering what other people think I ought to know about other sub-fields of cognitive science.
Jan
25
comment What are the “Must Know” papers of Cognitive Science?
Not constructive? Seriously? The answer to this question alone could be worth its own site!
Jan
19
comment What are the effects of implanting electrodes into the brains of monkeys?
'exact same signal controls both arms' - What does that mean? The biological and the mech arm? and what do you mean by 'a separate patch of brain'? Separate from the part in M1 controlling the biological hand? Then the monkey will probably not be able to learn to use the BMI.