For questions regarding the study of the underlying neural substrates of cognition, especially those at the crossroads of psychology and neurobiology

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How common is it for twins conjoined at the head to share thoughts and visual stimuli?

I've always been interested in the possibility of a pair of conjoined twins, joined at the head, being able to read each other's thoughts, react to stimuli that one of them can't see/hear/feel, and ...
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21 views

Can humans keep track of two unrelated rhythms?

Let's do an experiment. With your left hand start tapping out a regular (evenly-spaced) beat - say, 2 beats per second. With your right hand attempt to tap our a different regular beat, but tap at a ...
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22 views

Is Nietzsche morality has any scientific basis? [on hold]

Nietzsche believes that people either have master morality or slave morality. The master thinks wealth is good. The slave thinks that anything that allows the master to achieve wealth is evil. A ...
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1answer
33 views

How can we be formed by our childhood's environment if we don't remember much of it?

Studies with rats showed that the most licking ones in childhood were the most licked in adulthood [1]. Also many psychologist says that this is the part of our live where our personality is created ...
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1answer
29 views

Using IT to quickly make a simulated brain

First of all, I would like to say that I know nothing about cognitive sciences. I am just posting this question because it interested me and I stumbled across this group in stack exchange. I was ...
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1answer
69 views

Are the physical sensations of an emotion due to neural activity strictly in the brain or also in the body?

Symptoms of anxiety and anger are often described as some sort of energetic sensation in my chest and sometimes face or arms. Are these sensations an 'illusion' from neural activity strictly in the ...
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1answer
46 views

Can Transcranial Magnetic Stimulation (TMS), or a magnets cap make you smarter?

According to wikipedia, TMS is a bunch of magnetic fields directed to the brain which stimulates and activates neurons. If I wear a cap full of magnets, will it stimulate my neurons? If yes, will a ...
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1answer
73 views

Why do people who stutter have less difficulty singing than speaking?

From what I have read, stutterers tend to have much less trouble singing than speaking. Do we know why this is the case?
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1answer
38 views

Parasite that takes over cognitive functions [closed]

I am testing an idea for a book. The backbone of the story is that there exists a parasite that can enter the brain of a creature and take over its cognitive functions. I imagine that it could wire ...
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2answers
67 views

What is the relationship between the ego, amygdala and consciousness? [closed]

I've been reading a lot about emotional responses lately, and the following points seem to surface in different writings: "Amygdala is a very ancient system, intended to quickly alert a person ...
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Is psychological shock a valid construct?

Rather than shock as a physiological reaction to bodily trauma, does anyone know of research on the validity of psychological shock? I'm not referring to shell shock, or the original name for PTSD. ...
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Cognitive arguments as rationalizations of emotional processes that preceded them? [duplicate]

I heard the following argument on German talk radio: Modern cognitive science indicates that our conscious arguments are only rationalizations of emotional processes that preceded them. Where ...
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2answers
62 views

Are action potentials necessary for experience?

We know that, for example, during brain surgery, electrical stimulation in certain parts of the cortex is sufficient for experience, and result in reportable experiences in human subjects. We also ...
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70 views

Strengthened Inhibitory Connections Between Neurons

I'm reading Bio Inspired Artificial Intelligence which cites this passage about neuron plasticity: "Spike time-dependent plasticity. The percentage of synaptic modification depends on the ...
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49 views

Does creativity have a neurological basis independent of the art form used to express it?

The arts provide a medium for creativity, and while some ideas might be easily expressed in various forms of art, some might not be (for example, a sculptor might be able to express the same idea in ...
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1answer
55 views

What physical process governs which details are retained in memory?

With long term memory, there is loss of information. For example, we don't seem to retain all the details of every image we see. What is the physical process those details undergo which cause them to ...
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3answers
139 views

Flow diagram of how information flows through the brain?

I am a Artificial Intelligence researcher with a interest in neuroscience. I was wondering if flow diagrams exist of the way information flows from sensory inputs through the parts of the brain (and ...
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2answers
104 views

Brain's differences in introverts vs. extroverts

I know that introverts have a higher sensitivity to dopamine, for example. Are there are other chemical and neuronal differences?
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1answer
73 views

What's the optimal type of exercise to increase BDNF

It is known that exercise has a positive effect on BDNF (brain derived neurotrophic factor). BDNF has a positive effect on mood and cognitive abilities. What's the optimal way of exercising ...
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1answer
59 views

What is the neurophysiological mechanism behind double hearing?

A patient with sensorineural hearing loss can have the symptom of hearing "double" in the damaged ear. Not having a time-delayed echo, but hearing as if he (or other people) speak with "two voices" at ...
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4answers
143 views

If a human brain would be placed inside that of an animal: Could it talk?

Assumption: Animals can't talk 'human' because of their small(er) brain. Perhaps a strange thought, but I was really wondering: If we could place a human brain inside that of an animal: Would we be ...
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58 views

Ranking of produced “brain fatigue” from different mind intensive activities

I'd like to know if there has been an study, or different studies for each activity with which the ranking could be done, that determines a ranking like that with mind intensive activities, I refer to ...
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1answer
86 views

What is “Attention” in terms of brain activity?

A rather basic question, but I don't know the answer to that - What is human "attention" that can be focused on different parts of the body or outside objects? For example, I can focus my attention ...
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1answer
52 views

Practical ways to increase Mental alertness? [closed]

Are there any scientifically proven exercises which can improve mental alertness and awareness naturally? please share!
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1answer
102 views

Is there explanation of persistent laziness?

As we say when we feel happy there are some biological explanation of some feelings like happiness and sadness as they explain here. So I say whatever we feel can be explained in biological way, so ...
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70 views

Have any drugs been shown to increase the neuroplasticity of adult brains?

I read recently in the book "meet your happy chemicals" that the hormones of puberty are neurochemicals that cause your neurons to connect and myelinate more easily. If this is true have any studies ...
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32 views

reliability of fmri and pet [closed]

While I admit that pet/frmri scanning is possibly reliable when measuring physical aspects of the body, I would like to know how reliable it is when measuring cognitive aspects e.g. emotion. How ...
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2answers
109 views

Is it possible to erase problematic memories?

This question is inspired by a question I answered on Health. Can we erase problematic memories to aid recovery from depression? A depressed person asked how to erase specific unpleasant ...
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28 views

Neurobiology of addiction recovery [closed]

While addiction is one of the most studied topics in neurobiology, I don't see very much info on recovery. The information I have found is confusing. This one says striatal DAT bindings return to ...
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1answer
71 views

Is consciousness a sub product of the brain or is there a duality? [duplicate]

I am trying to understand what consciousness is, based on my basic knowledge of our senses, artificial intelligence (computer vision, specifically) and some philosophy. Here's my reasoning: As far as ...
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1answer
42 views

Does knowledge of tests like Iowa Gambling and Wisconsin Card-Sorting task enable a person to fake the test?

I am interested in tests like the Iowa gambling test and the Wisconsin card-sorting test. If a patient understands how such a test works and the goals of the test, does this bias the measure obtained? ...
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1answer
84 views

How does the group that is not stressed and not reactivated act as a control for time in Schwabe & Wolf 2010?

Schwabe and Wolf (2010) Rodent studies suggest that memory reconsolidating is impaired by stress. Here we examined in healthy humans the effect of stress on the reconsolidation of ...
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2answers
123 views

How are humans able to read scrambled text/characters (e.g., CAPTCHA)?

So I'm doing a research on developing a new text-based CAPTCHA system. I've devised a scheme where characters in a text are broken/split individually and randomly, making it difficult for OCR machines ...
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1answer
41 views

Reading words without pronunciation

I have been trying to practice speed reading, and found the removal of subvocalization technique, but it seems almost impossible to understand words without pronouncing them in my head. I think our ...
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The “Backwards Bike” and implications for how we think

Here's a video of a guy learning to ride a "backwards bike", if you turn the handles left, then the wheel goes right. It took the guy forever to learn to ride a backward bike. He kept remarking that ...
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Continuous Basic EEG analysis [closed]

So, I have continuous EEG data from a control group and a test group. The recording was done while the participants were at rest, so no task was performed. I want to start with some basic analysis, ...
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1answer
75 views

What's the difference between executive functions and cognitive control?

I suspect that the difference between these terms may vary from researcher to researcher, since the wikipedia page treats them as synonymous. What's the difference between executive functioning and ...
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1answer
285 views

How does the brain physically get tired?

When engaging in physical work-outs, people often research how regular muscles store energy, how to eat and exercise cleverly so that the exercises actually make them stronger and more healthy instead ...
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Are there cognitive models that distinguish semantic and episodic memory?

From various amnesia cases it has been shown that semantic and episodic memories reside in different parts of the brain. Are there any cognitive models that distinguish these two types of memories? If ...
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2answers
103 views

What is the difference between “double dissociation” and simply having control and experimental groups?

According to my textbook Cognitive Psychology by E. Bruce Goldstein, a double dissociation occurs if damage to one area of the brain causes a function A to be absent while function B is present, ...
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27 views

Is it possible to design a visual and auditory oddball paradigm in Android?

I want to design an oddball paradigm to record event-related potential. Is it possible to design a visual and auditory oddball paradigm in "Android"?
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1answer
88 views

What are the neural substrates of retrieval induced forgetting?

Retrieval-induced effects It is well known that practicing retrieval of remembered items increases the probability of correctly recalling that item in future tests: the testing effect. ...
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1answer
110 views

Where do you get your news? [closed]

I'm a software developer. Many of us get our news from http://news.ycombinator.com Where do cogsci people get their news from? I'd like to read the latest trends and discoveries in cogsci research. ...
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75 views

What makes disengaged participants tired / exhausted after corporate meetings?

Why do disengaged people feel tired, fatigued or unfocused after long, "boring" corporate style meetings? (there is an agenda, but not everyone participates?) Over the years I've observed dozens of ...
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40 views

What's the difference between simultanagnosia and neurological extinction?

Both of these terms describe the inability to perceive more than one object at a time. I'm not too sure what the big difference is between them. Note that I'm referring to 'extinction' as used in ...
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1answer
50 views

How does Parkinson's disease result in tremors?

From what I understand, Parkinson's disease is caused by the death of dopamine producing cells in the substantia nigra, however I don't understand how that causses the symptoms of Parkinson's. I am ...
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93 views

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 ...
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1answer
77 views

Difference in frequencies of mistakes between use of left-right vs. up-down

I have no hard data, but from my personal experience in people specifying right or left directions (similarly east or west) and up or down (north or south, top or bottom), people frequently make ...
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1answer
107 views

What's the difference between repetition suppression and habituation?

Neural repetition suppression seems to be describing behavioral habituation on a neuronal level. What's the difference between these two terms?
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1answer
44 views

Are there any studies (fMRI scans, etc) showing why some people (supposedly) are more open to hypnotism?

In this article published in Harper's magazine back in 1996, journalist David Foster Wallace described his experience with hypnotist Nigel Ellery (see the last section of the article, titled "THE ...