12
votes
1answer
806 views

What structures in the brain are called upon to strengthen coupling between bilateral movements?

It is very difficult for the normally-coordinated person to be able to pat his/her head and rub his/her stomach at the same time (or pick a similar activity). It seems to be possible to maintain the ...
12
votes
2answers
254 views

Have the core CBT “Thinking Errors” been found to NOT be effective in evidence-based clinical practice?

This is his chart of the ten "thinking errors." It's taken from The Feeling Good Handbook. Table 3–1. Definitions of Cognitive Distortions ALL-OR-NOTHING THINKING: You see things in black-and-white ...
12
votes
2answers
348 views

Do people (under)value free stuff?

I recently saw this Ted talk by Esther Duflo, and in it Duflo tells of how she tackled the question in the title head on, in the context of health and disease prevention. I would like to know what ...
12
votes
2answers
294 views

Are introverts more talkative in written form than extroverts?

We all know that extroverts are in general more talkative than introverts in oral form. But how about written communication? After having talked with lots of people on the internet and met several of ...
12
votes
2answers
305 views

Does dopamine signal become stronger when goal distance is defined using time?

Howe et al (2013) found that a dopamine signal becomes stronger as a goal is approached. The experiment involved rats running in a maze. If the rats were close to solving the maze, the dopamine signal ...
12
votes
1answer
116 views

How does displaying existing votes to a poll influence subsequent voting behaviour?

Some polls involve a question where the existing votes received for each response option are displayed. I have heard that on such polls the existing votes influence the answers provided by subsequent ...
12
votes
1answer
814 views

Why do humans like being touched?

I wonder why people like to be touched so much, why would it make sense from a evolutionary perspective. I know people enjoy hugs and company of opposite sex but even people from the same sex hug and ...
12
votes
1answer
136 views

Learning of new concepts being impeded by an error in previous work

Note: I'm framing this question in terms of tutoring math since that's what I tutor most, though it applies to a wide range of subject matters. I do a decent amount of tutoring, and this is one ...
12
votes
0answers
159 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 ...
12
votes
1answer
256 views

Human behaviour in one-shot perfect information games

Background A one-shot game is one where two participants have some set of actions $\{1, ... , n\}$, they make their decision on which option to take (without knowing the decision of their partner, or ...
11
votes
5answers
524 views

Have humans always had problems with motivation and laziness?

I originally wanted to ask a question "Is there a drug for motivation or laziness", but google search revealed that people have been asking this question for years and there's no drug that is ...
11
votes
3answers
251 views

Is serotonin conclusively linked to depression?

Some highlights from this article: http://www.thedailybeast.com/newsweek/2010/01/28/the-depressing-news-about-antidepressants.html ever since a seminal study in 1998, whose findings were ...
11
votes
4answers
499 views

Why is training better when following an easy-to-difficult schedule?

As suggested in the answer to this question, experimental results show that training is most effective when it follows an easy-to-difficult schedule. What theories and specifically computational ...
11
votes
2answers
1k views

Folding (wrinkles) in cortex: Why is surface area more important than volume?

When we look at the cortex of the brain, it has a folded structure. It is said that this is because this enables a greater number of neurons to exist, which is obviously advantageous. However, we ...
11
votes
5answers
8k 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 ...
11
votes
3answers
9k views

Can we smell in dreams?

I'm interested in whether people can smell in their dreams. Do people really experience smell in their dreams? For example, if I dream of smelling a flower, will I feel the smell, too? Is there any ...
11
votes
3answers
3k views

What is the psychology behind male pornographic actors having larger than average penises?

There is a question What does scientific research say about the relationship between penis size and attractiveness? This answer and this link give the statistics of penis size. Given these ...
11
votes
2answers
7k views

Why does repeating one word over and over again sound weird to us after some time?

This effect seems to be observed with almost any word. I would say this phenomenon 'works' for longer and complex words better. When we repeat a word over and over again, it starts to sound very ...
11
votes
2answers
175 views

Which are the multisensory brain areas?

What would be an example of a multisensory brain area, where multiple senses (e.g. smell and taste) are combined to decode the corresponding stimuli from more than one sensory organ? I was thinking ...
11
votes
1answer
349 views

Why did Karl Popper criticize Freud's theories?

Why didn't Karl Popper accept Freud's psychological theories and believed that they are not scientific in essence?
11
votes
2answers
675 views

Is it possible to quantify cognitive bias?

We know that bias exists, and that it affects our judgment and perception. This effect has to do with user's experience in life. That experience is taken care of by the brain, and if you counter a ...
11
votes
3answers
1k views

Is it possible to improve reading speed and visual comprehension by doing exercises?

Background I'm trying to capture detailed information from the images in my visual memory, mainly text. My daily life requires reading many documents on varying topics. I want to increase my reading ...
11
votes
2answers
7k views

What was the experiment where you pour liquid from a tall container to a short one and ask a child which has more?

From Developmental psychology 101 I remember an experiment where the person conducting the experiment would pour liquid from a tall, narrow container into a short, narrow container and ask a child if ...
11
votes
3answers
266 views

Is there a random walk theory that can account for situations with more than two choices?

In the article "Two-stage Dynamic Signal Detection: A Theory of Choice, Decision Time, and Confidence" from 2010 by Pleskac and Busemeyer, a random walk model is presented for situations where a ...
11
votes
1answer
251 views

How do humans control saccades?

I've gathered the standard rational for a visual system utilizing saccades from perception textbooks: the neural cost of processing an entire scene at a high level of detail would be prohibitive, but ...
11
votes
3answers
290 views

What neural mechanism explains the tendency to visually attend to the whole scene before attending to details?

I have the intuition that human vision first attends to large-scale objects and then small-scale details. Is there any mechanism in the visual cortex that will explain this phenomenon? Is there a ...
11
votes
2answers
194 views

To what extent do individuals vary in their ability to mentally visualise?

Background: Yesterday I was shocked when a friend of mine told me that he can see only "completely black darkness" when he closes he eyes. When I close my eyes, I can see some images or "movies" of ...
11
votes
1answer
217 views

Are there additional animal studies about superstitions?

In one particular case, Skinner decided to go random on his hungry pigeons. He dropped food into the box at completely random times, independent of any behavior on the part of the pigeons. But the ...
11
votes
2answers
829 views

What is the “static” in human vision called?

Sort of like a cheap digital Camera, the human eye has certain feedback that's perceived but doesn't actually exist in the real world; a little layer of Static that's especially noticeable in pitch ...
11
votes
3answers
4k 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 ...
11
votes
2answers
2k views

How long does it take to refocus after context switching?

Context switching has been highlighted for the toll it takes on productivity at great length, particularly by people who work in software and project management. Are there any psychology/...
11
votes
1answer
162 views

Are there any studies that examine the phenomenon of songs stuck in the head?

Frequently I hear people say (and myself included) "darn it, I can't get that song out of my head!". Are there any studies that examine this phenomenon of songs getting stuck in people's heads? I.e.,...
11
votes
1answer
261 views

What is a reliable physiological measure (e.g., serotonin levels) of positive affect?

Is there a reliable physiological measure or correlate to positive affect? What does research say on this? I thought that serotonin levels are correlated with self-reported happiness levels, but, ...
11
votes
1answer
2k views

What does “veridicality” mean in terms of psychology?

I'm reading the paper "Visual Space Perception and Visually Directed Action" by Loomis, Da Silva, Fujita and Fukusima (1992; pdf). In this paper, the word 'veridicality' is used in several sentences. ...
11
votes
1answer
309 views

Is there a practical limit to the amount of knowledge a human can learn?

There's definitely progressive interference and retroactive interference, which are basically two ways that old memories and new memories can interfere with each other. But on the other hand, do ...
11
votes
1answer
417 views

Why do we wake up when we die in our dreams?

A lot of people had some experience with dying in their dreams. They all confirm they remember the whole story until the precise moment of death and it is the death itself what woke them up - not ...
11
votes
1answer
534 views

To what extent are correlations of father's age with birth defects and autism causal?

I read the following in the paper today: Dr Karin Hammarberg ... said that while most children are born healthy, large studies of parental age were starting to show higher rates of birth ...
11
votes
2answers
168 views

Perception of probability of being right

The probability that people percept may be different from the real one due to a number of factors, including the form in which their are presented, their context and biases (due to misinformation or ...
11
votes
2answers
195 views

Computational Model Linking Neural Activity to Behavior

A big question in neuroscience is how neural activity represents knowledge. We can use modelling to explore how different levels of neural activity- subthreshold currents, action potentials, local ...
11
votes
2answers
317 views

What causes people to feel depressed without there being a problem?

I have noticed that some people have lives that appear perfectly fine, yet they feel depressed. In my specific case the feeling typically lasts for a few days and then magically disappears, only to ...
11
votes
1answer
611 views

What are biological primary mathematical skills?

In doing a bit of background reading for this question I came across a section in the book Cognitive Neuroscience: The Biology of the Mind on page 602 stating: There are no sex-related differences ...
11
votes
2answers
491 views

What are different ways to determine centroids of fMRI activation, their drawbacks and perks?

I'm reading an older article on bilingualism (Kim, Relkin, Lee, & Hirsch, 1997) for a seminar. They were interested in the spatial separation of two languages in early and late bilinguals. They ...
11
votes
2answers
3k views

Motivation vs Goal Oriented Behavior

What's the difference between these two terms when used in the context of cognitive psychology? To the best of my knowledge, research on 'Goal Oriented Behavior' refers to the subset of motivation ...
11
votes
3answers
325 views

Are there third party providers of Mechanical Turk psychology experiment services?

For various reasons it can be difficult to run a Mechanical Turk experiment (i.e., you don't have the technical expertise, you don't reside in the United States, etc.) Have any third-party providers ...
11
votes
3answers
5k views

Why do people talk fast in presentations when nervous?

I was at a professional development seminar today, and the presenter, while being interesting and knowing his subject admitted to being nervous and was speaking very fast. I know I do this when I am ...
11
votes
8answers
8k views

Why do people want what they don't have now?

There are many examples of people wanting what they don't have. For example, a single man may want to have a girlfriend, but after some time of having a girlfriend, he may want to be single again. Or ...
11
votes
3answers
218 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 ...
11
votes
2answers
206 views

Do the students that report “friendly” teachers perform better on standardized tests?

I'll preface this by saying that I've been considering this question in light of the "Summer of Love" initiative and subsequent blog posts, which are looking at the extent to which comments are "...
11
votes
1answer
281 views

Why do participants prefer to give input values that are “round numbers”?

Background I have just been analysing some data where participants attempt to control a dynamic system with integer numeric inputs between 0 and 100. I've noticed that there is a general tendency for ...
11
votes
1answer
386 views

Under what conditions does 60hz video produce visual artifacts?

There are some important thresholds of frame rate in video playback that effect whether or not animation appears fluid. This wikipedia page about Visible Frame Rate suggests that a framerate of 60 ...

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