All Questions

576 views

What is the difference between confidence and overconfidence?

People say there is a very small difference between confidence and overconfidence. How can knowledge of psychology help someone know whether they are are confident or overconfident? What is the ...
114 views

Is happiness a result of cognitive or a side effect of neurobiological processes? [closed]

This morning I've heard this talk on Ted.com: Matt Killingsworth: Want to be happier? Stay in the moment The presenter is discussing an iPhone app used to track happiness, and seems to draw a ...
451 views

Closure, an actual psychology term relating to filling in information?

I'm currently reading a book called "Understand Comics" and a term has come up called closure. I've understood this concept before and the book describes closure as the process the brain goes through ...
301 views

How do people visually recognize their own reflection?

I'm interested in how the brain processes and recognizes the image of the person's own face. A bit of background: A while ago I've developed an overlay-camera like app for iPhone that allows me to ...
138 views

What happens neurobiologically when people “think fast”?

This question is related to this one: How long can a person stay happy, excited and motivated about something new? I found a couple of references to research that links "thinking fast" to mood lift: ...
202 views

What kinds of maths to learn for understanding dynamical systems in cognitive science? [closed]

A current trend in cognitive science is to view the mind as a dynamical system (e.g., Continuity of Mind by Spivey, in which cognition is understood as a "continuous and often recurrent trajectory ...
141 views

Abstract idealized mental visualization improves motor task performance

I practice martial arts (Aikido), which involves a lot of rotation. When practicing, I find that holding an abstract image in my head, instead of thinking about the actual technique, improves my ...
897 views

Why is Asperger Syndrome poorly recognised in France?

Asperger Syndrome is quite well-known in psychiatric circles, as well as (to a lesser degree) the general public, in many countries the western world. However, in France, Asperger Syndrome is ...
108 views

Is Decision Making/Theory/Analysis applicable to game design?

I've done research over the last year in game design by reading some of the most well-known books in the field. Making interesting decisions is one of the fundamental elements of fun in games. I'm ...
270 views

What is a good beginner level book on neuroanatomy? [closed]

I'm looking for a beginner level book on neuroanatomy. I haven't any background in neuroanatomy, other than what I learnt back at school. I'd like to take up a post grad neuroscience course to help ...
233 views

Analysis of parameter estimates from Ratcliff diffusion model

I would like to analyze a dataset in which subjects' reaction time and error rate have been recorded. In order to account for potential speed-accuracy trade-off I am planning to make use of the ...
88 views

How can I test whether Dorsal Raphe Nucleus(DRN) activity at night is related to variations in mood?

I'm reading this paper, which discusses Serotonin activity in the Dorsal Ralphe Nucleus(DRN), and even includes some mathematical models of how serotonin is released and reabsorbed. The paper states ...
77 views

The effect of lifestyle photography on sales conversion rates

I work for a large UK-based clothing retailer. After some initial customer testing with our product details page (on our website) there has been some debate on the following question: Do customers ...
356 views

How long can a person stay happy, excited and motivated about something new?

I'm interested in learning more about studies or experiments that determine how long a typical person can stay excited about something new: ...
72 views

Can thought be shifted between subconscious and conscious awareness? [closed]

While awake, can thought activity be transferred between the subconscious and conscious awareness, by will?
125 views

How is light processed by the human brain when awake and in dreams?

I've recently seen this great video: How your brain tells you where you are. The video discusses how certain cells within the brain fire based on proximity to objects. There are great examples of ...
383 views

Attention Theory: is it impossible to avoid distraction?

I remember reading at some point in the literature that humans are unable to avoid distraction from a certain primary task if this task isn't using up close to all available 'resources' - basically ...
93 views

Disappointment When Goal Fulfilment is Delayed

I am wondering if there's a term in psychology for a situation where you want something really bad, but you are not able to get it for the moment (or a goal that you are not able to achieve) and when ...
133 views

What is the name of the phenomenon whereby someone steps-up and others follow?

Example: In class, when a teacher proposes some unreasonable assignment, students hesitate to express their objection until someone steps-up and then others find courage to talk. I've tried searching ...
36 views

Rated model of driving-related processes and objects

The SEEV-Model for predicting the distribution of visual attention contains a parameter called 'value' which represents the importance of a certain area of the field of view concerning a given task ...
351 views

Origin of the SEEV Model of visual attention distribution

What's the original source of the SEEV (Salience Effort Expectancy Value) Model for predicting the distribution of visual attention? I've seen it mentioned in many papers and presentations but ...
710 views

Is there an R implementation of the linear ballistic accumulator model or Ratcliff's diffusion model for measuring response time and accuracy?

I am looking for an implementation of the linear ballistic accumulator model or Ratcliff's diffusion model (e.g. in R, MATLAB, or Python).
64 views

Is there any “predictive” component to positive/negative affect in Seasonal Affective Disorder and Bipolar Disorder?

I'm wondering if the human brain "predicts" how certain weeks of the year should feel? For example, a child who is going to school may have a more positive affect in anticipation of summer holidays, ...
209 views

Effects of alcohol on muscle memory

Muscle memory (also referred to as "motor memories") is a form of procedural memory, which is a form of implicit memory. Studies seem to have shown that alcohol has no significant effect on implicit ...
103 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 ...
415 views

How good are people at guessing the ages of their respective ethnic group?

I have a Chinese friend and she says that she has a much harder time guessing Western people's ages than Eastern people's ages. No particular surprise here. For me it's the opposite. I have the ...
312 views

Why do people regret actions they didn't take when looking back on their lives?

Is it true that individuals often regret recent actions (i.e., last few months) but when they look back on their lives, they tend to regret things that they have not done (or lack of actions) ? If ...
502 views

How can motivation be increased by improving brain chemistry with nutrition and activities?

I'm reading some material about motivation and brain chemistry. One of the interesting articles is "7 Ways to Increase Motivation by Improving your Brain Chemistry". I'm interested in a more ...
78 views

Differences in willingness to correct errors made between human and computer interactions

I have a design where I present participants with a series of decisions, and then ask them about some of these decisions later. Similar work has found that even when the particular decision was made ...
404 views

What stimulus features determine the psychophysical power law exponent?

Following the work of Stanley Stevens, psychophysical functions of stimulus intensity are commonly assumed to follow power laws, as illustrated below: This appears to be true for a wide variety of ...
90 views

How similar are human brains within the same haplogroup?

I've read about neuroscience and listen to talks like this one Juan Enriquez: Will our kids be a different species, I'm starting to realize that humans are not all the same, and are instead quite ...
2k views

Which neurotransmitters can be measured in a living human brain?

I'm interested in learning more about the modern techniques that are used for scientific studies of neurotransmitters in the living human brain. As far as I know, there are 4 neuromodulator systems ...
187 views

What is the scientific basis for long-term negative physiological effects of overstudying?

I am interested in long term negative physiological effects that some students experience following overstudying. What is the scientific basis for overstudying? Is over studying correlated with ...
181 views

How does fever affect time perception?

Many of my friends and I have noticed that at certain stages of fever, time is often perceived as being longer than usual. I'd like to know if this is caused by the disease itself, an immune reaction, ...
206 views

Is there a circadian component to mood variations in humans?

I'm looking at this question about an Experience Sampling Method (ESM) app: Longitudinal mobile mood tracking app with random reminders The studies linked in the question deal with sampling of user ...
441 views

How does body temperature affect perception of time?

Does raising or lowering one's body temperature lead to different perceptions of time? And does this then control the virtual length of positive or negative emotions? For example, individuals might ...
284 views

Does the effect of naturalistic exposure on second language acquisition vary with age?

A while back, I watched the movie The Terminal and the main character played by Tom Hanks learns to speak fluent English while he is stranded in the airport for more than a year. Which seems somewhat ...
443 views

Is there a better way to describe brain activity than EEG “brain waves”

I've been reading about EEG brain waves, which are specific waveforms that are observed on the EEG output, and are usually scored by humans. This concept has been around for quite some time. Is there ...
63 views

Is there any fMRI evidence for different “states of mind”?

If you've seen a snickers commercial, it goes something like "you are a different person when you are hungry". I'm interested if the person's brain actually looks different when observed through fMRI ...
537 views

How to measure group differences incorporating reaction time / accuracy trade-off?

In a psychological experiment I am measuring subjects' reaction time as well as their error rate. Now I would like to compare two groups (males & females). There might be a bias in the sense that ...
27 views

What are the reliable and valid test to measure working memory? [duplicate]

Possible Duplicate: How to reliably measure working memory capacity? I am currently doing my thesis on how different types of music affect the cognitive performance more specifically ...
2k views

Is there an open-source / free official Myers-Briggs assessment I can adopt?

Background I've got an idea for a web site that uses one's Myers-Briggs type as part of the value. I've seen various web sites offer "quick quizzes" to assess one's MBTI, but I'm not sure how ...
602 views

How to explain emoticons to an autistic person?

I am currently chatting in an IRC and there is one girl (i think she's about 18 years old) and she has Asperger syndrome and therefore is unable to understand countenance and feelings. She told me ...
108 views

Does Cognitive Tunneling apply to daydreaming as well?

I've been reading a paper by Jarmasz J. (2005) on cognitive tunneling and am wondering if it applies to daydreaming? For instance, if for some reason I'm already thinking about something that has no ...
163k 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: ...
177 views

'Model-free' learning in humans

In reinforcement learning, there is a stark distinction between model-based and model-free learning algorithms, where model-free methods don't make use any explicit information about the dynamics of ...
459 views

Why is white on black considered higher contrast than black on white?

While researching to answer Why are "Inverted Colors" considered an accessibility feature? I noticed the puzzling claim that "White text on a black background is a higher contrast to the opposite, so ...
300 views

What is the brain power devoted to vision and haptics?

I heard a talk by Vincent Hayward on the sense of touch as a multi-modal system, where he claimed that the brain power devoted to haptics is at least as big as the one devoted to vision. I have found ...
Lets say there are two persons denoted $p_1$ and $p_2$ who share some common friends denoted $N$. $p_1$ is told that $N$ of his friends are interacting with $p_2$. This generates an inherent ...