7
votes
1answer
173 views

Do we need a pre-test to compare the effectiveness of two treatments?

Assume, I want to evaluate how effective two teachers are in teaching English to German children. Both teachers have been teaching at the same high school for twenty years, and both use a distinctly ...
4
votes
1answer
65 views

How many samples are there when test subjects come through different recruitment strategies?

Let's assume I want to conduct a survey. To find test subjects, I post an ad in a local newspaper, one on a locally relevant website, distribute flyers in front of the train station, and have managed ...
5
votes
1answer
1k views

How to create a course that will give you synesthesia?

I'm thinking of creating a Memrise course that will include numbers and letters with corresponding colors, personality and sounds with aim of trying to develop some synesthesia in myself and anyone ...
5
votes
2answers
214 views

Are there useful applications for three channel consumer EEG?

I stumbled upon the consumer EEG Melon (at Kickstarter). It has three electrodes and is advertised as measuring how "focused" you are. In the FAQ it says: The Melon headband has three electrodes. ...
6
votes
2answers
141 views

What is the null hypothesis, when there is no research hypothesis?

(a) Apples grow to different sizes, from small to average and large. Farmers want large apples. (b) There is this rare bug, the apple bark bug, which lives in the bark of apple trees. Due to its ...
11
votes
1answer
141 views

What is the mechanism behind unihemispheric sleep in animals?

It is known that dolphins have the ability to sleep with only one half of their brain at a time. According to this popular science source: Dolphins sleep by resting one half of their brain at a ...
11
votes
5answers
7k views

Is there an accurate online IQ test for measuring 160+ IQs?

Is there some (preferably free) online and accurate IQ test? One which does not give me an genius IQ and then tries to sell me a diploma. I need one which measures upto 160 sd15 (or higher). Such a ...
12
votes
0answers
158 views

Do animals that sleep during the day have a different sleep architecture than those who sleep at night?

A typical hypnogram, delineating the sleep architecture for a (human) mammal looks like A distinct distribution of non-REM and REM sleep can be observed. Is this pattern of sleep cycles ...
7
votes
1answer
22k views

How are Raven's Matrices scores converted into age adjusted IQ?

There are IQ tests based only on Raven's matrices. I wonder how a raw score on such a test "scaled" to an IQ result. As we all know, IQ results depend on the age of individual tested. So I was ...
7
votes
1answer
73 views

Prevalence of mental health problems in medical professionals caused by exposure to death?

Some medical professionals work in areas where they are exposed to death often (say, E.R, O.R, Cancer Treatment, etc.), specifically in an area where they bond with the patient and the patients' ...
11
votes
1answer
1k views

How well can a human-generated “random number” be predicted?

For example, if i ask an individual to write a 20-number-long sequence of random numbers from 0 to 10. How well can I predict the 20th number from the initial 19? More generally, How well can ...
3
votes
1answer
116 views

Are there neurological conditions that can be worsened by B group vitamins?

I know that vitamins B6 and B12 are very important for the brain function, and both are involved in metabolism of homocysteine. Buildup of homocysteine has been associated with cognitive impairment. ...
1
vote
0answers
667 views

How can schemas be applied to website design? [closed]

If a "schema is a cognitive framework or concept that helps organize and interpret information. Schemas can be useful because they allow us to take shortcuts in interpreting the vast amount of ...
7
votes
2answers
238 views

Name of the bias where someone really needs something after they find out it exists

I'm looking for the name of the cognitive bias that is expressed in the following story. A fellow coworker was instrumental in getting a 75 gallon fish tank installed in the lobby of the company that ...
2
votes
1answer
91 views

Psychometric scale with items in sets where responses imply a rank order of items

My question is related to psychometry. One survey is measured in this way: ...
7
votes
3answers
369 views

How much can users hold in their short term memory

I recently undertook a questionnaire and was asked a question about short term memory. One that I just can't find an answer to at all as it seems to be so contradictory. This got me curious. How ...
2
votes
1answer
99 views

How are activities involving toy blocks linked the development of intelligence in children?

I'm looking for a peer reviewed article that links the development of intelligence to any form of block building activities. For example a child playing with wooden blocks can improve their ...
7
votes
1answer
218 views

Can prolonged neural adaptation lead to HPPD?

The human brain adapts to a constant stimulus of our neural system. For instance, if we ride a train and look out of the window for a long time and the train stops, we have the feeling of slowly ...
7
votes
1answer
170 views

Do eyes accommodate to color?

I've heard that our eyes accommodate between colors too far from each other in the visible spectrum. I imagine it's not a true focal point accommodation, but rather linked with how brain processes the ...
5
votes
2answers
100 views

Do different meta-cognitive measurements depend on the same mechanism?

There are different meta-cognitive judgments: feeling of knowing, ratings of warmth, confidence, judgments of learning, tip-of-the-tongue or not, insight or not, etc. Are these judgments based on ...
4
votes
1answer
71 views

Why different responses to target and distractor in three-stimulus oddball procedure?

In the three-stimulus oddball procedure, there is an infrequent target in a background of frequently occurring standard stimuli and infrequently occurring distracter stimuli. My question is, since the ...
10
votes
3answers
260 views

Are older people more likely to be politically conservative and why?

J.Campbell suggest that the difference between age groups on being politically conservative is small. But F.Glamsers article concludes: there was a significant positive correlation between age ...
5
votes
2answers
120 views

What correlation is there between breath control and personal self confidence?

In yoga, the instructor mentioned that controlled deep breathing can increase self-confidence. (Next time, I will ask him why he believes that but I doubt he has any references...) Furthermore, ...
4
votes
2answers
119 views

Is there any (free) program that allows the recording of text input and the speed of input?

I am planning to run a study where participants will been shown questions on a computer monitor and their task is to type their responses in a text box as quickly as they can. Their input and input ...
3
votes
0answers
42 views

What kinds of long - term cognition/motivation tracking tools are there? [closed]

I'm aware that there are dozens of personal "activity trackers"/ pedometers like fitbit that are aimed for mass consumer and can log activity over extended periods of time. Are there equivalent ...
3
votes
1answer
197 views

Why do our senses evoke different subjective experiences

I'm wondering why there are different subjective experiences when our sensor systems are technically the same neurons that just get excited by different stuff (photons, soundwaves, ...). So why does ...
3
votes
2answers
111 views

How to analyse 3 by 3 design with Likert scale ratings?

I want to understand what would be the best way to analyze the results of an online likert-scale ratings of pictures on 3 dimensions. I have 3 groups of participants from different countries. They are ...
4
votes
1answer
235 views

“Memory and the Computational Brain” by Gallistel & King

I am looking for opinions on this book particularly whether it is a suitable intro to the field of cognitive neuroscience. What I would not like is a book that is really a collage of introductory ...
4
votes
1answer
57 views

When rating, is it better to set the expected goal in the middle with hard to reach upper bounds or higher with desired outcomes at the upper bounds?

The actual implementation that I'm interested in is a set of five scores from 1-5 (whole numbers) that are averaged together to compute an overall score (decimal values). However, I prefer to look at ...
8
votes
1answer
106 views

Are there any models of the human visual field of view taking into account head, neck and eye movements and calculating likelihood of fixation?

I would like to know if there are studies that (1) model the field of view taking into account all degrees of freedom of the head, neck and eyes and (2) if there is any probabilistic model assigned to ...
8
votes
2answers
328 views

How do SSRIs work?

I've found a reasonable explanation on Wikipedia... SSRIs are believed to increase the extracellular level of the neurotransmitter serotonin by inhibiting its reuptake into the presynaptic cell, ...
4
votes
1answer
546 views

How do you run a risk / gambling experiment using Qualtrics or Amazon Turk?

I want to run a simple probability matching gambling experiment: Each round has the participant pick Up or Down. The computer picks Up with a probability (p=0.7). If the participant gets it correct, ...
2
votes
1answer
508 views

How does personality moderate or mediate the relationship between stress and burnout?

My research is on work related stress and burnout amongst healthcare professionals and the role that personality play in either reducing or increasing levels of stress and burnout. I'm using the big ...
7
votes
2answers
94 views

Predicting the landing site of a saccade while the saccade is still in progress

A brief look through the literature didn't reveal any algorithms that have been directly applied to the online prediction of saccade landing sites while a saccade is in progress. While there would ...
-1
votes
2answers
126 views

Does not using the brain erode its power? [closed]

Does not using the brain erode its power? If so, are perpetual brain exercises recommended to prevent (or increase) its power (chess, puzzles, etc)?
14
votes
0answers
294 views

Does dream recall interfere with “reverse learning”? (Crick and Mitchison's theory of REM sleep)

I've recently became aware of the idea of "reverse learning" that might happen during REM sleep - the brain's attempt to eliminate pathological attractors that might appear in neural networks. The ...
11
votes
3answers
214 views

Is there any recent work on modeling how we rapidly acquire new knowledge?

I work with neural network models of human cognition a lot, and one thing that bugs me about them is the timescale: they learn over thousands of trials whereas humans seem to learn after a couple ...
3
votes
1answer
109 views

What is the linguistic equivalent of functional fixedness?

Recently, I saw a crossword clue: (5 letters) "They help you after a crash." After going through the list of EMTs, firemen, police officers, etc. I realized that the answer was "IT Guy." This seems to ...
3
votes
1answer
110 views

How do I change my tiredness patterns?

All of you probably know what the human 'circadian cycle' is, and depending on your personality, you would either be a night-owl or a morning-lark. I am interested in understanding the patterns of ...
4
votes
1answer
785 views

What happens to a person's frontal lobes when they have a breakdown from stress?

When a person gets really stressed out and has a mental breakdown what happens to their frontal lobes? I'm reminded of the clip from "What about Bob?" when Richard Dreyfuss has a breakdown when he ...
5
votes
1answer
152 views

When can anchoring backfire?

Anchoring is a well-known phenomenon [1]. However, I just ran an experiment where the effect seemingly backfired. Basically, I asked people to estimate the number of jelly beans in a jar. In my anchor ...
6
votes
4answers
2k views

Aesthetic preference for even or odd numbers

In my experience most people prefer the appearance of even numbers or numbers divisible by 5. Is there any research which proves or disproves my theory? Is it all about symmetry? I expect that ...
2
votes
1answer
606 views

Any studies on lack of imagination and creativity?

Is there a formal scientific term for this type of personality?: Main priorities are: family, phsyical and financial protection of the family and self. (Little to no creativity. Strong desire to ...
2
votes
3answers
365 views

Getting started with EEG data

I want to get started with getting signals from EEG and learning on how I can read data. I have some programming skills, so designing a database and manipulating data with ruby (python seems also ...
23
votes
3answers
4k views

How is intelligence correlated to beauty?

Recently, I read several interesting questions on the web about the relationship between IQ and general intelligence and physiological symmetry. But more importantly, what explains the correlation? Or ...
5
votes
1answer
273 views

Are there any free databases of audio-visual emotional stimuli (English)?

I am particularly interested in naturalistic and induced emotional content. I have found the SAVEE, the HUMAINE and the SEMAINE databases. I have read through the Terms for LDC (UPenn) and it seems ...
3
votes
2answers
647 views

How to conduct surveys using facebook?

More and more often I read in papers, that an online survey has been conducted through Facebook. What I have yet to understand is how this can best be done. I understand that Facebook allows the ...
7
votes
1answer
97 views

Self-fulfilling stereotypes: Have researchers tried inventing new group stereotypes?

Studies on the stereotype threat have typically used stereotypes that that are common in contemporary culture, i.e. the canonical example being the study that showed African American SAT scores ...
7
votes
1answer
88 views

Effect of paper type on evaluation of resumes

I heard about an experiment that have shown an effect of the type of paper a resume was printed on, on the evaluation of the resume. If I remember correctly, resumes printed on heavier paper, or ...
20
votes
1answer
753 views

How long should I work before taking a break?

I'd like to work as effectively as possible for 8-9 hours a day, whether at work or studying. At some point in completing my major in psych I remember hearing about the importance of taking breaks ...

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