# All Questions

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### What is the set of cards used in the Wisconsin/Berg Card Sorting task?

I'm a little confused about what cards are included in the Wisconsin card sorting task. According to PEBL there are two sets of cards available for the task, one set of 64 cards and one set of 128 ...
105 views

### Have there been any recent replications of the Hofling hospital experiment?

In the original Hofling hospital experiment (1966): A person would telephone a nurse, saying that he was a doctor and giving a fictitious name, asking the nurse to administer 20 mg of a ...
63 views

### Are psychiatric disorders merely statistical deviations?

When we suppose that a segment X of the population is at high-risk for disorder Y, don't we assume that anyone carries the same psychophenotype, yet not in a statistically-significant degree?
204 views

### Colorado Boulder study about brain morphometric measures of Cannabis users methodologically weak?

I'm relating to this study: http://www.jneurosci.org/content/35/4/1505.short The researchers found no differences in subcortical brain structures for daily Cannabis users vs. controls. However the ...
129 views

### What rules are tested during the Wisconsin Card Sorting Task?

I was reading about the Wisconsin Card Sorting Test and although I understand the concept, I'm not clear on what rules are usually tested. Does it always vary between associations between shape, ...
63 views

### Can someone not feel i.e. neglect pain sensation?

Ronda Rousey (UFC Women's Bantamweight Champion) once said on a talk show (Conan) that she can take a punch and not feel pain, she added that she knows what pain is and she can just simply neglect ...
119 views

### What are the side effects of Anger?

Are there any side effects i.e. any hormonal changes , dopamine release when we get anger or while we shout or outburst in anger? Because we feel satisfied getting anger in a situation than keeping ...
1k views

### Has anyone formally tested Josh Pellicer's theory on human sexual behavior?

I read Josh Pellicer's book titled "Tao of Badass." He discusses the sexual behavior of men and women and how they interact during the dating process. However, I have been unable to find any ...
23k views

### Does masturbation affect brain in long term?

I am interested in knowing. Does masturbation (once daily) affect the brain negatively in terms of: Memory and concentration skills during the long term ? Does it affect it in the short term? After ...
591 views

### Why do con artists like Frank Abagnale Jr. not feel guilt?

I just finished watching a video of Frank Abagnale Jr discuss his life history. Who knows if its true, but it is an amazing story. For those who don't know, Frank Abagnale is one of the most infamous ...
180 views

### How does this illusion - that I just inadvertently created - work?

As I was working on a basic chess application for Android, I loaded some chess clip art into my imageviews. Then this happened. Look closely at the top two rows. At first I was startled. My ...
106 views

### Why are dreams about failing exams so common?

Why so many people have a dream in which they are just about to take a mandatory school exam and they're totally unprepared, or they've missed it because show up in the wrong day, or the exam is on ...
199 views

### Calculating d-prime

I'm currently working on a research that has to use and calculate D Prime values for a task where subjects are presented an image at different speeds and they have to report if they saw the image or ...
45 views

### Conditioning/training value of objects in experiment

In visual attention and decision making, how do experiments teach participants the value of specific objects (high vs low vs none)? Does anyone know of studies that done this which go into ...
84 views

### What is the simplest entity that would be considered “conscious”? [closed]

Generally, we think of humans as having a (relatively) advanced level of consciousness, but we don't think of simple molecules as having any sort of mental capacity at all. So where in between does ...
286 views

### What's the difference between inductive and deductive research in cog sci?

I'm not really clear on what the implications are for inductive vs deductive research methodology and analysis. Any examples or input would be great!
170 views

### How to find the upper and lower quartiles of the Ryff scale?

I received this question via email and thought the answer might be sufficiently general to be worth posting here. I have used the Ryff scale in my research . Actually I am confused about the ...
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I have this question from wandering how a person, who does not have speech capability or is isolated from people who speaks, could learn how to read? Will a language (A) like English or (B) like ...
98 views

### Does the retina encode visual information like a Bitmap or an SVG?

I heard recently that a scientist has developed a retina prosthesis. So I think this is a question that has an answer. Does the retina encode information like a Bitmap image or an SVG image? (A ...
320 views

### Are there mental reflexes?

Similar to knee-jerk or withdrawal, are there any innate reflexes in cognition? Are they based on personality, or are there any that are universal?
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### Is it necessary to read signals and systems before statistical signal processing/ detection theory [closed]

For one who is interested in computational neuroscience and brain computer interface, in university curriculum (e.g. BCCN Berlin), it requires a course in statistical signal processing / signal ...
176 views

### Is there a difference between hearing and decoding the sound?

I presume that deafness is the inability of hearing any sounds. And I presume that it may also be possible to be less able to decode sounds. In other words, an inability to translate or understand the ...
593 views

### PTSD based on false memories

Memory is not just static snapshots or video on a harddrive, but an active process. As such, it is possible to construct false memories (Brainerd & Reyna, 2005). Some of these false memories can ...
115 views

### What are the neurobiological factors related to depression?

While it is agreed that neurotransmitters aren't the primary "cause" of depression, what other factors are a part of this mental illness that focus on the neurobiological aspects of it?
73 views

### Which parts of the brain are used when identifying and sorting email messages?

When most people view their email inboxes, they'll see several different types of messages; for example, emails which have been auto-generated by services we use, communications with real humans which ...
30 views

### Accuracy of methods for detection of dementia in EEG [closed]

I found these methods mentioned in bioengineering and other papers: Fractal Dimension Measure, Probability Density Function of the Zero-crossing Intervals, Approximate Entropy But I think every of ...
15 views

### Sleep deprivation effect on brain [duplicate]

I have a doubt reg. sleep deprivation. I did not sleep for past 24 hours(Because I did not feel sleepy),but slept the next day for full 8 hours. I do not feel the difference So my questions are, ...
46 views

### Why does the unilateral 6-OHDA lesion Parkinson's model cause ipsilateral rotations?

As far as I understand, the loss of dopaminergic neurons should hinder movement in the contralateral side of the body, resulting in contralateral rotations when the animal tries to move forward.
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### What are the smallest neurons ever identified? [closed]

What are the smallest neurons ever measured? I'm happy with any superlatives, such as the thinnest axons or dendrites, smallest somata etc. Thank you :)
168 views

### Are all psychological problems only biochemical in nature?

Are all psychological problems only biochemical in nature or do some 'mental' components ( that is some form of conceptual 'conditioning' caused directly or indirectly or 'subconsciously' by the ...
210 views

### What causes Capgras (“imposter”) Syndrome?

Capgras Syndrome is a rare disorder in which a person believes his or her loved ones have been replaced by identical-looking impostors (http://en.wikipedia.org/wiki/Capgras_delusion). What causes this ...
52 views

### What did Jung's patient find out?

I'm reading Dreams by Carl Jung, and I couldn't understand a specific paragraph. Maybe I'm missing something so obvious that he didn't bother to write. It is the entry numbered 542: What did the ...
78 views

### Activity in a brain region and additional blood requirement: What is the causal relation?

May I know causal dependence of the blood flow in the brain? How it is determined by the brain that particular brain region requires additional blood?
332 views

### The mathematics of dreams, or better, the dreaming of mathematics

I know that the meaning of dreams is a controversial topic and I do not think that they have a specific meaning, although I am certain, by experience, that dreams are deeply connected with what ...
24 views

### A simple derivation of the generalization bounds for the classical perceptron model

I'm basically referring to the great work of Elizabeth Gardner in this matter. I find that her work is often overlooked in the field of neuroscience, arguably because it is too difficult to understand ...
51 views

### What speech synthesis software is suitable for research?

I'm looking for recommendations for speech synthesis software that can be used to generate audio stimuli. The audio stimuli that I'm trying to generate will be long sequences of isolated syllables. ...
144 views

### Is being less emotional a bad thing for motivation?

We know that emotions increase motivation. The stronger feelings, the more motivated we get to do something about it. We know that humans differ a lot in how emotional we are. In theory that should ...
48 views

### Performance of children at school in the morning

Our local council are changing the school day to 9:30 - 15:00 for my youngest son, my eldest in a different school starts at 8:20 and finishes at 15:20. I believe that children are more productive in ...
116 views

### Does daily software development enhance the cognitive capacity of a person? [closed]

Software Development is an intense activity which requires using most of one's cognitive capacity. When programmers develop a software, they usually make an abstract understanding of the task which ...
507 views

### Why do males prefer females with blonde hair?

I would like to know why males prefer blonde women.
83 views

### Why is the order of brainwaves not labelled “alphabetically”?

The brainwave - frequency breakdown is as follows: Delta wave – (0.1 – 3 Hz) Theta wave – (4 – 7 Hz) Alpha wave – (8 – 15 Hz) Mu wave – (7.5 – 12.5 Hz) SMR wave – (12.5 – 15.5 Hz) Beta wave – (16 – ...
440 views

### Why do people fear statistically unlikely things?

Over 10 times more people die in circulatory diseases than accidents (source). Nevertheless people fear (in general) more accidents than circulatory disease. In addition, there are statistically even ...
247 views

### Is there a difference between visual short term memory and visual working memory?

As far as I can tell the two terms are used interchangeably. Do these two separate terms exist for historical reasons, or is there a distinction I'm missing?
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### What's the most effective way to learn and revise foreign language vocabulary?

Google searches have suggested to me that some sore of spaced repetition should work best, keeping in mind Ebbinghaus's "Forgetting Curve". However, it is not clear to me exactly when I should ...
85 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 ...
44 views

### Do people talk faster than they process? [closed]

I've hear both claims 1) people (in general) talk faster than listeners can process the meaning of the words being said 2) people can process what's being said faster than a person can talk I think 2)...
95 views

### Do depressed people think that they always thought in such a negative way?

I feel like I may have read or heard a finding that depressed people may get the delusion that they always used to think in such a negative way as has begun since getting depression. Is it so?
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### Do people with ADHD have reasoning abilities and mathematical abilities just like normal people? [duplicate]

Do people with ADHD have reasoning abilities and mathematical abilities just like neurotypical people ?