# All Questions

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### Are there parts of the brain which don't change over a lifetime?

We know that during our lifetime the brain develops new neural connections and also there is pruning of neural connections. These phenomena together are called neuroplasticity. Is there any research ...
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### Research on computational models of physiological mechanisms in affective neuroscience at a biochemical level

As computational neuroscience has the mainstream on single neuron/network modelling for biochemical aspect, and computational modelling of physiological mechanism of hippocampus for analytic study of ...
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### Where to find images of the same faces with and without glasses for experiment?

I am looking to replicate the findings of Leder, forster, and Gerger (2011) in their publication of the glasses stereotype revisited. I intend to examine the same conditions of no-glasses, rimmed ...
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### What changes brought into DSM-5 have increased therapeutic use of medications?

Given the controversies surrounding DSM-5, has there been any research into its impact on prescription practice (in the United States)? If so, what are the changes that have resulted in increased use ...
58 views

### How does diet affect OCD?

Background: I have read that caffeine is not a good drink for sufferers of anxiety disorders. This is common sense given that it may increase agitation. I noticed when I started a low carb diet that ...
48 views

### What neurotransmitters can be suppressed/promoted by tDCS

Transcranial Direct Current Stimulation (tDCS) has been shown to modify suppression in the visual cortex and GABA suppression in motor control. As of now, the exact neurobiological mechanism that ...
388 views

### Do highly creative people dream more and/or differently than ordinary people?

Everybody dreams, and I'm trying to understand if there is a cause and effect relationship between ability to dream and recall dreams and creativity as an adult. I would define the kind of ...
42 views

### Physiological mapping of frustration

What physiological changes are seen in the brain when a person is experiencing frustration? What effects do these changes have on learning? Optional background: I'm trying to figure out an ...
44 views

### Dependancy EEG signals from regions of the brain

When we record an EEG signals , we apply an ICA on it , this algorithm assumes that the sources of signals are independent , could I assume that each region in the brain work independently , i.e the ...
55 views

### Detecting signs of dementia in EEG signal

I would like to know, how dementia can be recognized in the EEG signal of patients with dementia. What I have found so far: According to (Henderson et al., 2006) subjects with dementia are ...
31 views

### What's the purpose of worry [if there is any] and how and why does it affect cognitive skills?

I've read some articles lately about worry and how there are basically two types of worry: one doesn't last long and makes you decide to do something ,solve a problem,act on it the other one last ...
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### Can a person be able to objectively identify when and how their thinking process is being affected by cognitive biases?

or years, I've always thought I can do a pretty good job of identifying when I have committed a bias, fallacy or some other heuristic. I'm not saying I avoid them, but at least can admit to myself I ...
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### How to measure your stress levels?

If someone has eutress it supports his/her mental development and learning of new skills. It is so called optimal level of stress as illustrated in the figure below. Are there any ways to measure ...
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### How does neurotransmitter distribution and usage vary thought the brain?

I understand that neurotransmitters are used to send signals between neurons in the brain and that some are used for rather specific functions. However, is the exact ...
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### What's the difference between divisive and soft normalization?

I know that recursive neural integrators (let me know if I need to clarify this term) can be considers soft normalizers, since their feedback loop means that any stimulus eventually saturates the ...
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### What happens inside our body, when we experience betrayal and infidelity?

I guess many of us have experienced it. The moment that you understand that "the person you love, in whom you've trusted, is now with someone else, enjoying every moment with him/her". It's so ...
352 views

### Difference between forms of Culture Fair Intelligence Test (CFIT) scale 3

I would really like to know what are the differences between the form A and form B of Cattell's Culture Fair Intelligence Test scale 3? To my knowledge (reading the "methods" section in the ...
44 views

### Can microdialysis be made in Drosophila melanogaster?

Microdialysis is a common method to study the effects of drugs on specific mamal brains zones (mostly in rats), in order to study the it's interaction with the function of those specific areas that ...
57 views

### Effects of Social Networking websites on Humans?

What are the effects of social networking websites in the evolution of humans (behavioral, intellectual, etc.)? Have their been any studies (published research, articles) on positive or negative ...
51 views

### What is the source for the W3C's Contrast Ratio formula?

The Word Wide Web Consortium (W3C) has a formula for the contrast ratio of any two arbitrary colors, which they use to set minimum standards for text legibility: ...
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### What method(s) are available which demonstrably increase a person's g factor, (assuming such are available)?

Following up on this question: What method(s) are available which demonstrably increase a person's* g factor, (assuming such are available)? (*if a specific target individual is necessary to respond ...
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I recently read a fascinating article about the pattern of young women receiving ADHD diagnoses after first displaying symptoms in their late teens or early twenties, typically corresponding to ...
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### What are the average raw scores, and standard deviations for the WAIS-IV subtests?

What are the average raw scores, and standard deviations for the WAIS-IV subtests (scores are normalized)? For example, the digit symbol task gives you 120 seconds to substitute as many digits for ...
51 views

### average attention time and attention compensation time

Is there any good source for statistics regarding average attention span? More specifically- what is the average attention compensation time, meaning- how long does a person need to rest in order to ...
15 views

### Could motivational interviewing techniques be used without engaging with a counselor?

I've found lots of info on motivational interviewing for strengthening a person's own motivation and commitment to change, but I'm wondering if this technique has been adapted to help people who won't ...
31 views

### What does current research tell us about addictive behaviors in games?

I'm creating a game, and I would like to know what research I can consult to make it more "addicting". The game is a casual one, like Candy Crush, Angry Birds, etc
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### Does the self-reference effect extend to improved recall of 2nd-person text vs. 3rd-person text?

The self-reference effect has been widely researched in marketing for its ability to improve how favorably consumers remember a message, but less so for its ability to improve recall and learning of ...
936 views

### Is it true that drinking water before bed causes dreams to be more vivid?

Pavan Teja says on Psychtronics: Drink a lot of water. The more water you drink before bed, the more vivid your dreams. Is this true? Is this because I'm more alert not to, you know, and ...
212 views

### How does the body experience free-fall during a hypnic jerk

Today I learned that a sudden jerk that you sometimes experience when you are just about to fall asleep due to a sense of free-fall or weightlessness is called a hypnic jerk. If, while sleeping, I ...
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### Correlation between anorexia and mass media stereotypes

I know anorexia is a complex phenomenon. I've been reading on Wikipedia that: Sociocultural studies have highlighted the role of cultural factors, such as the promotion of thinness as the ideal ...
131 views

### Progress on Arnheim's perceptual forces in vision

In the second edition of Rudolf Arnheim's Art and Visual Perception: A Psychology of the Creative Eye, published in 1974, the opening chapter on "balance" begins with a discussion of "perceptual ...
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### Brainwave audio recordings and beta waves: how do they affect positivity?

I know a little bit about negative and positive energies of human bodies and how it all works. Recently, on Facebook, I saw an ad promoting some sort of audio recording and that it has something to do ...
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### Do any supplements or psychoactive drugs for improving memory have solid long term research?

The non effects of vitamins has been in the new frequently recently. Do any supplements or psychoactive drugs for improving memory have solid long term research?
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### Frequency in Human sexuality bisexual polyandry and polygamy and others?

I've been studying human sexuality and I have a question which I do not know the answer nor do I exactly know how to research. In the psychology of human sexuality specifically bisexuals what ...
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### What evolutionary process(es) are thought to have enabled humans to experience dreams?

As some theories suggest, most, if not all, biological features in organisms exist due to environmental factors that trigger the organism's eventual adaptation to these factors for survival purposes. ...
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### Muscle tone and default heart rate - psychological conclusions?

I know that muscle tension and heart rate goes up as we get stressed, but what if in normal conditions some have a lower heart rate and muscle tension while others higher? Does this say something ...
213 views

### How has psychology categorised different types of love?

How has psychological theory categorised the different types of love? What taxonomies of love are most accepted or useful in psychology? EDIT: I went through Triangular theory of love. Are there any ...
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After my admittedly short research I could not find information which states that if a person is disturbed while their sleeping, let's say in NREM3 phase of their sleep cycle, and wakes up and then ...
150 views

### Spontaneous change of handedness

I read this question Are there benefits to learning to write with your non-dominant hand?. It got me thinking. Disclaimer: This is not a self help question I am using myself to illustrate the ...
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### What is the proper terminology for “hoarding” type paradox (but not extreme)?

Feel free to edit my title -- I'm not exactly how to sum it up in one sentence, THUS my question here: Is there a name or specific terminology related to the somewhat paradoxical situation in this ...
319 views

### Why do power laws describe learning and skill acquisition so well?

In humans, why do powers laws describe skill acquisition? In particular, $$RT = aP^{-b}+c$$ where $RT$ is reaction time and $P$ is amount of practice. Does the power law generalise to learning in ...
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### Can abstract object representations be associated with a wider range of sounds in comparison to everyday object representations?

I'm looking for some peer reviewed evidence that abstract visuals can be associated with a wide range of sounds when compared to more recognisable visual representations pertaining to everyday ...
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### What Quantified Self reserach tools are there for measuring performance while playing videogames?

I've recently became aware that there's a whole field of quantified self - using various methodology to collect data about human performance in an attempt to "quantify" how the human body/brain works. ...
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### Short term time perception affect long term time perception?

It is known that attending to time (i.e. looking at duration) expands subjective time. So if I want to do something for 20 minutes and look at my watch, this would increase my subjective time ...
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### Predicting the Duration of Future Events

I am interested in the question of how people use/integrate previous experiences with instances of tasks or events to make predictions about the duration of future instances of tasks/events. To ...
156 views

### In what order do people notice another person's attributes (race, age, gender, etc.)

I seem to recall reading some research years ago about what people notice in the first second or so of seeing someone else, and in what order they notice those things. It's something like gender, ...
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### Meditation for patients with neuroleptic induced tension

Patients taking antipsychotic (neuroleptic) drugs often suffer from some kind of discomfort or tension. This can manifest as a neuroleptic induced dysphoria, akathisia, or some kind of anxiety. Is ...
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### Kelly Criterion Observed to Be Adhered by Psychopaths?

As this study shows, psychopaths are much more willing to take advantage of expected gains despite recent losses as opposed to normal people who frequently stop after a series of losses. Has there ...