# All Questions

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### How is brain processing different for situation-less vs. situated emotional faces?

In traditional emotional face perception paradigms, participants are shown circle cut-outs of emotional faces. All context has been removed. Participants only see the face. However, it's well ...
69 views

### Is procrastination associated with overweight?

I came to think of how working out requires a will to "get things done". Some people are successful in their career while working regularly out at the same time, and some people are procrastinating ...
143 views

### Why is it easier to fall asleep in the dark?

I'm curious if there is any neurological mechanism that explains why falling asleep is easier in the dark. I recognize that this isn't true universally -- a phobia of darkness might make it easier to ...
94 views

### What brain regions are activated when a dream is remembered?

Some people remember dreams, others don't. The same person can wake up with dream recall one day and without on other days. I know that the association between REM sleep and dreaming was initially ...
353 views

### Can a person “self-induce” the placebo effect?

Despite a recent dubious claim that placebos don't require deception (critiqued here), placebos appear to function on the basis that a subject believes X will have ...
122 views

### Dopamine deficiency more frequent in the addiction prone?

I found this clip about dopamine deficiency. ...[P]eople with low dopamine activity may be more prone to addiction. Is the reverse also true? Does susceptibility to addiction (genetic, etc.) ...
160 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 ...
88 views

### In a central pattern generator based on reciprocal inhibition, how does one “side” get picked over the other to start out?

Consider two neurons, A and B, which reciprocally inhibit each other. If both of the neurons receive input at the same time, it seems to me that no oscillation will occur between the two. Such would ...
223 views

### Psychology of timbre processing

Are there any studies concerning the psychological aspects of timbre processing in the brain, e.g. while listening to music? In particular, can any lower-level correlates be discerned when trying to ...
105 views

### Can processing effort for sub-tasks in neural networks be measured?

I often heard statements like: 80% of your brain processing is computing the effect of gravity or, similarily: You only use 20% of your brain power My question isn't about the truth of ...
172 views

### Why is a lack of response to punishment in adults considered significant in diagnoses?

It seems that a lack of response to punishment is often considered useful in diagnosing conditions or symptoms. A good example of this may be in diagnosing psychopathy, in which a lack of response to ...
158 views

### What is the effect of merely expecting an interruption on performance?

There's a lot of research about how interruptions affect cognitive performance. Are there any studies that have looked at the effect of merely expecting to be interrupted (withou being actually ...
120 views

### What are the most used statistical methods in WM research besides (generalized) linear modeling?

I mean, by cognitive psychologists. I skimmed over a few articles from Journal of Cognitive Neuroscience and Trends in Cognitive Science and concluded that ANOVAs and t-tests are mostly used (without ...
122 views

### What is the result of an excess of dopamine?

I'm pretty familiar with the results of having not enough dopamine, though the reasons are not so clear to me. To get a better insight on the topic I'd like to know something about having too much ...
48 views

### Number of presynaptic inputs per cell in primary visual cortex

I have been digging in the literature lately, but I haven't found a nice answer with clear cut numbers (avg +- std) to this question: How many presynaptic inputs receives a pyramidal cell in primary ...
48 views

### Why “fractional” anisotropy?

Why is Fractional Anisotropy (FA), a measure in diffusion tensor imaging, called "fractional"? I'd have thought "local", i.e. voxel-wise, would have been the correct way to qualify the anisotropy that ...
97 views

### Will hearing but not listening to a video mentor help me learn?

I have a A+ video mentor that I got through school. I was wondering if playing the videos as if they were music and just going about the rest of my tasks on the computer would help me to learn the ...
62 views

### What are biologically plausible ways to model binocular disparity?

I figure there is a vast body of literature on stereovision, both neurophysiological and computational studies. Computer Vision also provides some algorithmic insight on implementing binocular ...
129 views

### How to set up a binocular rivalry experiment which splits a single image in two separately controlled ones?

The question is about the actual physical setup and steps needed to take in order to experiment with the phenomena. I found a tutorial on jove.com, "How to Create and Use Binocular Rivalry", and it ...
77 views

### What is the Mechanism of 5-HT2A-mediated psychedelia?

Drugs that activate the serotonergic 5-HT2A receptor (e.g. LSD, psilocybin, mescaline) are notorious for causing psychedelic experiences and I would like to know the neurochemical mechanism behind ...
112 views

Performance on secondary tasks next to a primary task is sometimes used to assess mental workload (Ogden, Levine and Eisner, 1979). For example, the Stroop test as a secondary task has been evaluated ...
73 views

### How can I prime aversion to conflict?

I'm looking for a way to prime subjects in an experiment to dislike exposure to conflict (arguments, anger between people, incivility, etc.). Does anyone know of a good method for this?
233 views

### What is the effect of Social Media consumption on self-esteem?

I have been seeing many conflicting studies saying that facebook usage increases or decreases self-esteem. What is the current consensus regarding the effect of facebook usage on self-esteem? Has ...
731 views

### Are ambidextrous people better at multitasking?

I'm strongly 'one-handed' in that I can barely even write with my left hand. My wife is fairly ambidextrous, in that she's by default left-handed, but can also write with her right hand. I've ...
103 views

### When faced with a choice and trying to make a quick decision, are 2 options better than 3 or more options?

Bastardi & Shafir (1998) show how too much data disabilitates your decision making. There is also the popular Paradox Of Choice argument. However, I can't find a reference stating that, when ...
98 views

### How to efficiently get a sense of the meaning of a score on a non-aptitude test that you encounter in a journal article?

Context: When reading research articles in psychology, you often encounter new non-aptitude self-report psychological tests (e.g., measures of personality, well-being, psychopathology, learning style, ...
308 views

### For depression diagnoses, does one make a clear distinction between endogenous and exogenous causes of depression?

Roughly speaking, we might imagine that people have depression predominantly for one of two reasons: Endogenously induced: The person has some inherent inballance between different ...
89 views

### Whether to ask satisfaction and importance questions for each item in a survey?

Job satisfaction and opinion surveys ask respondents to provide ratings on a set of items. One response scale might be a five point rating scale measuring satisfaction (e.g., 5-point strongly ...
68 views

### What is the state of the art in computerised coding of Thematic Apperception Tests (TATs)?

Thematic Apperception Tests (TATs) involve showing test takers pictures and getting them to write stories based on the pictures. Coding such stories for themes and traits can be complex, ...
131 views

### Are topics experienced later in the day more likely to be present in dreams?

Is there any evidence suggesting that thoughts or experiences from late in the day are more likely to be dreamed about the following night compared with similar experiences earlier in the day?
56 views

### Psychology of Sympathizing with Death

Why do we sympathize in general when we see something or someone dying even if we personally don't know it/them? Is there any species other than humans which sympathize with the death of its own ...
587 views

### What causes introverts to lose “energy” in social settings and require recovery afterwards?

Over the years I've seen numerous articles about introverts that mention that they dislike large social interactions (meetings, parties, etc) because they drain their energy. These articles mention ...
131 views

### Phase locking value (PLV) between $x(t)$ and $x(t-T)$

I have been trying to calculate PLV using the hilbert transform (reference). To test if it even works or not, I calculated PLV between $x(t)$ and $x(t-T)$. i find that it drops to zero very quickly as ...
134 views

### Are there physical techniques to relieve eye strain? [closed]

I asked a question about eye strain Does looking into a mirror relieve eye strain in a similar way to looking at distant objects?. Are there any physical exercises or techniques that can help to ...
149 views

### Does correcting responses after feedback lead to better learning?

In a typical supervised learning experiment, one might present visual stimuli, e.g. faces, one after another and ask participants to classify each one into one of two categories, e.g. A and B. Usually ...
82 views

### What is the effect of displayed online personal identifiers on online communication?

Online interaction provides an interesting avenue for experiment and experience. People are able to hide or fabricate their personal details including age, sex, and appearance. For the purposes of ...
139 views

### Is there evidence for a unique isolated internal representation of loved ones?

Some time ago, I've read that the most significant people in a person's life have their own internal representation/model of within the person's mind. For example: An internal representation of a ...
1k views

### What is the average amount of new vocabulary adults retain when learning a second language?

What are the realistic/optimal (or maximal) number of words of vocabulary that can be learned (retained and later successfully accessed) by an adult learner of a foreign/second language? (Unit: Per ...
131 views

### Judgments of similarity between samples of writing

I was thinking last night about the possibility of an experiment that investigates the factors contributing to peoples' judgments of 'stylistic similarity' between two samples of writing. For example, ...
114 views

### What research has been done on attachment types in other primates?

The most canonical experimental paradigm for studying human attachment styles is the Strange Situation leading to classifications such as Secure, Insecure-avoidant, and so on. What are the equivalent ...
94 views

### What is the correlation between objective indexes and aggregated self-report measures of life satisfaction?

The Better Life Index and other indices seek to overcome the limitations of GDP in assessing social progress. They provide a composite score with which to rank nations on a range of indicators such as ...
192 views

### What are the consequences of prolonged cognitive dissonance?

We know that situations that induce cognitive dissonance cause a variety of interesting behaviors in humans. But do we know why relieving cognitive dissonance is such a powerful motivator? What ...
41 views

### What exactly is an astroglial calcium wave?

There are quite a few conflicting reports as to what stimulates them, how they propagate, whether they communicate intercellularly, and what they look like. The only consistent information I can ...
93 views

### What are the psychological differences in camelCase and underscore_case programming conventions?

In computer programming, spaces are often forbidden in the declaration of variable names, so programmers have created alternate methods of identifying word boundaries in variable names: camel case and ...
71 views

### Psychology of brand names

Marketers use the fact that different letters are associated with different mental images and emotions when they create brand names. Studies show that letters and their combinations produce ...
495 views

### Is it normal for men in long term relationships to want to have sexual relationships with other women?

If a man who is married or in a long term relationship wants to have sexual relationships with other women, is this pathological, deviant, maybe even a disorder? Or is it part of normal and healthy ...
268 views

### Does data support Domhoff's neurocognitive theory of dreams?

Background: A friend described consistent feelings and themes during a dream. It is my understanding that the contents of our dreams are our subconscious/unconscious/preconscious processing stimuli ...
32 views

### Does distraction cause us to skip to the next step in a motor plan?

Often, if one is concentrating too hard on a particular task, it seems as though it's quite easy to skip to the next step of a plan of action. For example, a baseball infielder may attempt a throw to ...