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1500 questions
24
votes
2 answers

Free online intelligence test with norm table, high reliability, and must be printable?

I am looking for a general intelligence test which meets the following requirements: available online for free there is a table which translates "points" to IQ (I don't want a hidden online evaluation) it should be a reliable test (I am not…
Julia
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24
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7 answers

Difference between parallel processing done by human brain and by computers

I am asking a question regarding parallel processing as done by billions of Neurons inside our brain and parallel processing done by our computers in a cluster for example or even on a Graphics processor having 500 processing cores. Recently we have…
gpuguy
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24
votes
3 answers

How to reliably measure working memory capacity?

The capacity of human working memory is subject to individual differences. The number of items or chunks a person can retain in their memory may, have profound effects on a variety of other cognitive processes, such as problem solving. I have come…
crsh
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24
votes
4 answers

How long does it take to read a sentence with X number of characters?

How does the time needed to read a sentence scale with the number of characters? Or does this time scaling depend on something more than just character count? For example, let $X$ be the number of characters and $F(X)$ the seconds to read an entire…
JoJo
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23
votes
2 answers

Applications of computational learning theory in the cognitive sciences

Computational learning theory (CoLT) is a branch of theoretical computer science associated with the mathematical analysis of machine learning. A lot of the early ideas of the field take inspiration from human learning. The field has developed into…
Artem Kaznatcheev
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23
votes
1 answer

Is there a term for trying to remember a word, but only remembering its first letter?

This happens to me frequently. I'll say, "Oh you know that guy... uhh... I can't remember his name. But he starts with a 'Z'." You can remember part of the word but not the whole word. Is there a term for this situation? What causes it?
yep
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23
votes
5 answers

Can response time be incorporated into signal detection theory?

In signal detection theory, one typically uses "signal" and "no signal" responses to analyze the data (that is, the analysis is based on a discrete choice for each trial, generating the four possible outcomes "hit", "miss", "false alarm" and…
Speldosa
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23
votes
3 answers

Why is almost all therapy done as one-hour sessions weekly?

It seems far too spread out to me. Why do we pause mid-conversation and wait seven days? When my car needed repair after an accident, the bodyshop spent 25 man-hours on repair. They did that over the course of one week, which is good because my car…
Jared K
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23
votes
1 answer

Development of social cognition as an alternative to the obstetrical dilemma

Human infants are strange in that they are born more helpless than the infants of other great apes. They are born with about 25-30% of their brain developed, compared to the 40-50% of other great apes. Leutenegger (1982) showed that although human…
Artem Kaznatcheev
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23
votes
1 answer

How do emotions influence the language structures we use?

What are the verbal signs of subjectivity? I am doing research about the linguistic content of media (debates, talk-show, sport comments). It occurs that once the participant gets nervous or excited, the grammatical structure of the sentences and…
23
votes
1 answer

Medium-term effects of polyphasic sleep on performance

Typical sleep patterns of one big block of 6 to 9 hours with no naps is usually referred to as monophasic sleep. A second natural sleep pattern is biphasic sleep which breaks up your sleep into two chunks (Wehr, 1992; Ekirch, 2001). My question…
Artem Kaznatcheev
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22
votes
3 answers

Positive and negative reinforcement and punishment effectiveness

According to Skinner, positive reinforcement is superior to punishment in altering behavior. As Skinner discussed, positive reinforcement is superior to punishment in altering behavior. He maintained that punishment was not simply the opposite…
Richard Ayotte
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22
votes
2 answers

What is the effect of viewing pornography on children?

It is generally accepted that porn shouldn't be seen by children, and we even sometimes punish parents who fail to stop their children from finding porn. How much are these laws based in science? Can a simple image cause real injury beyond mere…
Ansis Māliņš
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22
votes
2 answers

Is there a causal connection between repressive sexual morality and antisocial behavior?

Wilhelm Reich believed that certain forms of deviant behavior result mostly or in part from the repressive sexual morality of a society (Reich, 1930). Reich believes that the majority of antisocial impulses are caused by the repression and…
user3116
22
votes
5 answers

Why are people inclined to praise or fear the unknown?

Human beings are inclined to "praise" the unknown, and are often afraid of the unknown. This inclination has led to the creation of mythology and many gods. To this date we are still carrying this habit on our daily lives. "Oh, look at these crop…
Özgür
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