For questions about levels of abstract thought, understanding, self-awareness, communication, reasoning, learning, having emotional knowledge, retaining, planning, and problem solving, their roles in education, testing such levels, and deficiencies in these levels.

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6
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1answer
8k views

Does masturbation in men negatively affect cognitive processes?

Gary Wilson has mentioned that porn and masturbation is an addiction that negatively affect mental performance. Moreover, there is some "pseudo-science" claiming that abstaining from masturbation ...
6
votes
3answers
239 views

What causes an individual to not be able to hold all the details of a large project in memory?

Background: First of all, I'm not in any kind related to cognitive science, I'm a programmer. I'm not even sure that it's the right place for asking my question, but I'll try anyway. So, first of all, ...
5
votes
1answer
759 views

How can psychometry measure the very high IQ's in adults?

From Wikipedia's page on Mental age, we learn that: Originally, the differences between mental age and chronological age were used to compute the intelligence quotient, or IQ. This was computed ...
15
votes
3answers
3k views

Intelligence and marriage satisfaction

A recent letter by a Princeton alumni stated: Men regularly marry women who are younger, less intelligent, less educated. It’s amazing how forgiving men can be about a woman’s lack of ...
7
votes
5answers
373 views

Does an exceptional working memory inhibit intelligence?

According to the Fox News article "Chimps Smarter Than Humans in Memory Test" chimps were able to significantly outperform humans in a simple working memory task. I quote one part of the article in ...
3
votes
1answer
302 views

Dyslexia and IQ

Background Information of my questions: At the age of eight I was "diagnosed" with Dyslexia, I am now 47. I went from not being able to read and barely able to write to a college reading level in 9 ...
5
votes
1answer
1k views

Effect of Physical Exercise on Intelligence/IQ

I am interested in empirical research relevant to answering the following questions: What is the effect of physical exercise on IQ/intelligence? Does any such effect vary by type of exercise? e.g. ...
3
votes
3answers
648 views

Improving Speed of Thinking

What are some ways one can improve his/her speed of thinking and reasoning ? I am looking for some easy to follow strategies that can be systematically applied. (I am presuming it can be learnt/ ...
3
votes
1answer
1k views

What is the scientific support for Einstein's claim about the negative effects of reading too much?

Einstein once said: Reading, after a certain age, diverts the mind too much from its creative pursuits. Any man who reads too much and uses his own brain too little falls into lazy habits of ...
3
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0answers
103 views

Are there any cutting edge techniques that enable to acquire foreign language at relatively fast pace?

I am aware of immersion method as well as mnemonics such as the one Daniel Tammet's Born on a Blue Day. I read that Kim Peek's lack of corpus callosum enabled his brain to absorb information faster ...
3
votes
0answers
730 views

What reasoning processes underlie the Logima Strictica 36 and Logicaus Strictimanus 24?

I am conducting research in creating an AI with high IQ. I am interested in the tests Logima Strictica 36 Test and Logicaus Strictimanus 24. Further links are here What is the logic of these test ...
8
votes
1answer
239 views

How does the mind build a model of reality?

I'm interested if there has been any research or experiments that deal with how the human mind creates and perpetuates the idea of knowing something. I'm struggling to concisely express the question, ...
0
votes
1answer
124 views

Comprehensive encyclopedia of nootropics for medical researchers and practitioners

Is there a clinically-researched and tested encyclopedia (or similar resource) covering all available nootropics currently known? The Wikipedia article was a helpful first stop; but I'm searching for ...
23
votes
1answer
171k views

How valid is Lumosity's Brain Performance Index and what normative information is available?

Background There is a test called Lumosity's Brain Performance Index. A sample profile of scores might be: ...
3
votes
1answer
2k views

Is there a correlation between EQ (EI) and IQ?

Is there a correlation, positive or negative, between emotional intelligence and IQ?
6
votes
0answers
475 views

Cultural brain hypothesis and gene-culture co-evolution

Recently, Joseph Henrich of UBC has been promoting his cultural brain hypothesis. The goal is to explain a selection pressure behind the development of the human brain and general intelligence. The ...
6
votes
0answers
170 views

What is the distribution of performance in academic programming subjects?

On Programmers SE there is a popular question about scientific evidence for whether some people either are or are not able to program. One person cites an unpublished manuscript by Dehnadi and ...
6
votes
1answer
430 views

Does breastfeeding lead to increased intelligence?

Several studies suggest that breast-fed babies become more intelligent children than formula-fed babies (e.g., Lucas et al 1992). Questions To what extent overall does research support the ...
8
votes
0answers
400 views

How much sleep is required to restore maximum cognitive functioning? [closed]

Background: Recently I have really messed up my sleep schedule due to my procrastination. The internet points to some very basic conclusions but I would like to see actual experiments on effects of ...
9
votes
1answer
190 views

Are intelligence scores correlated with detection of second stimulus in an Attentional Blink test?

Definitions Attentional Blink: An attentional blink is a phenomenon where when presented with rapid visual stimuli if you are asked to track two particular stimuli you will fail to notice the second ...
3
votes
1answer
579 views

What is the correlation between Grade Point Average (GPA) and intelligence?

What is an authoritative empirical estimate of the correlation between pscyhometric measures of intelligence and Grade Point Average (GPA)? What are the main factors that influence the size of the ...
12
votes
2answers
460 views

Does intelligence cause greater alcohol consumption?

I just stumbled on a blog post that asserts that more intelligent people drink more than less intelligent people. The author writes: Controlling for a large number of demographic variables, such ...
8
votes
1answer
218 views

Do ability tests predict maximal more than typical job performance?

I have often read that ability tests are indicative of what people "can do", but that job performance also depends on what people "will do". For example, Ackerman and Beier (2012) wrote that: ...
2
votes
0answers
364 views

Does the ability to manipulate your environment affect the type of intelligence?

There are several animals on earth that show certain kinds of intelligence. Some animals have extensions to manipulate their environment and some do not. Think of humans and squids (hand/extension ...
7
votes
3answers
649 views

How to estimate IQ for public figures?

Background: I read a question on Quora that asked how intelligent is Barack Obama. A wide range of arguments were presented. The tone of the answers was not neutral because of the political context of ...
6
votes
3answers
961 views

Why have historically most inventors been men?

I noticed something strange when I looked at about.com's list of famous historical inventors. You can see that most of the inventors are men, and only a few are women. Can this be explained by ...
3
votes
1answer
1k views

What is the difference between IQ and Executive Function?

I was reading an article today that stated that people with high IQ's that have trouble with social skills, memory, being punctual (on time), emotional control, and "growing up" are likely to have ...
14
votes
2answers
1k views

Does super-intelligence necessary lead to consciousness, self awareness, freewill or emotion

After seeing this talk, the question popped in my mind. The idea is that as soon as a system is complex enough or intelligent enough, it able to act on its own. It seems to be a common belief. For ...
2
votes
0answers
167 views

What is the relationship between computer game performance and measures of ability? [duplicate]

Possible Duplicate: Any work being done on Perception, Action, and/or Cognition in Video games? What is the relationship between computer game performance and measures of ability?
6
votes
1answer
273 views

Why do dual N-back games use certain letters?

Every implementation of dual n-back that I've ever seen uses the set of letters 'C', 'H', 'K', 'L', 'Q', 'S', 'R' and 'T'. Why is that?
5
votes
2answers
677 views

Is variation in human brain size related to mental functioning?

It seems that the head size of human beings has evolved to be relatively similar, yet there is still some amount of variation. While I'm sure the correlation is not absolute, I read that larger heads ...
18
votes
2answers
738 views

Does language and/or culture affect an individual's cognitive capacity?

Some languages have multiple expressions to identify, address, comprehend, and interpret a single concept and/or experience. Are limits placed on understanding and describing aspects of cognition due ...
3
votes
1answer
982 views

How does raw IQ change over the lifespan at the group-level?

In the classic review of intelligence research (Intelligence: Knowns and Unknowns), Neisser et al (1996) write the following Stability. Intelligence test scores are fairly stable during ...
2
votes
1answer
233 views

Are there axioms in the mind? [closed]

While studying artificial neural networks, I stumbled upon the following question: Are there any hard-wired axioms in the brain that must exist equally in every conscious mind? I could imagine that, ...
16
votes
2answers
5k views

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 ...
12
votes
1answer
631 views

What are the benefits of dyslexia?

Reading the Wikipedia article on Dyslexia, it sounds very negative. The article defines Dyslexia as a learning disability, which I understand it is classified as. However, knowing individuals with ...
18
votes
2answers
1k views

Is there a term for individuals who can “visualize” numbers and advanced mathematics?

I recently saw an episode of 60 Minutes about Jacob Barnett, a 13 year old boy who is currently attending advanced physics classes at a local university and was portrayed by the show as being a child ...
2
votes
1answer
1k views

Is there a correlation between high IQ and creativity?

Is there a correlation between high IQ for example over 125 and creativity? Is creativity improved or does its importance simply diminish? Maybe there could also be confounding variables as well? It ...
10
votes
2answers
2k views

What transient factors affect performance on IQ tests?

While performance on intelligence tests aim to measure an underlying relatively stable trait, there are presumably a range of transient factors that could temporarily lower or possibly even raise ...
5
votes
1answer
658 views

Is the decline of fluid IQ with age less severe for professors and scientists than it is for other people?

This article in Time magazine suggests that engaging in challenging mental tasks may be associated with lower rates of mental decline in older adults. The article states that: In one study, ...
3
votes
2answers
670 views

Can intense multitasking improve fluid intelligence/working memory?

The Dual N-Back task is the only task I'm aware of that has empirical support showing that it improves working memory. It appears to improve working memory through multitasking, although this ...
4
votes
1answer
949 views

Does IQ affect learning speed?

Supposedly, people of higher levels of intelligence do learn faster than people of lower levels of it. But this is an awfully coarse observation, and different people can learn at drastically ...
7
votes
1answer
2k views

Are IQ tests “biased” against individuals with Asperger's Syndrome?

One person makes the claim over at his response to the Quora question Do people with Asperger's have above-average IQs simply because the ones with below-average IQs simply get diagnosed with autism ...
9
votes
2answers
298 views

How is it possible for psychometricians to develop IQ tests for people smarter than them?

After all, while psychometricians definitely have above-average IQs, they probably don't have IQs over, say, 160. If psychometricians already know what the right answers are (and how to obtain the ...
9
votes
2answers
1k views

Public domain scientific intelligence test available for use in research

The IPIP is an example of a public domain scientific personality inventory that can be used for research. Are there any good public domain scientific measures of intelligence? Requirements Do ...
5
votes
1answer
370 views

What hidden latent variables could be responsible for the high correlation between WORDSUM and IQ?

WORDSUM is a measure of vocabulary ( see sample items here) where the test taker has to select which of a set of words has the most similar meaning to a target word. There's been some discussion of ...
2
votes
1answer
382 views

Beyond a certain level, is reading comprehension affected more by psychological intuition than by verbal intelligence?

Certainly, you have reading comprehension passages on the SAT, GRE, and LSAT. But beyond that point, is it really possible to measure reading comprehension through multiple-choice tests? There are ...