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

learn more… | top users | synonyms

3
votes
1answer
84 views

What is the purpose of hemispheric specialisation in the brain?

What is the benefit or purpose of having different hemispheres of the brain contribute more to different cognitive processes?
3
votes
2answers
106 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?
3
votes
1answer
272 views

Is it possible to detect the mental flow state with EEG?

I know that it is possible to detect "focus" with a consumer EEG with a single electrode and a reference point (ear clip), even without conductive gel, but is it possible to detect a flow state with ...
3
votes
1answer
70 views

Relation between Nengo, SPA and NEF with respect to other Neural Models

I'm working through How to Build a Brain and I keep getting confused on the relation between Nengo, the Semantic Pointer Architecture (SPA) and the Neurological Engineering Framework (NEF). Are there ...
3
votes
3answers
94 views

Can repetitive sports-related head injuries make a person senile many years later?

Would repetitive football injuries to the cranium show up decades later, causing symptoms resembling mild retardation, OCD, etc.? What is the best way to determine this in terms of imaging, testing, ...
3
votes
1answer
109 views

How does the brain know whether or not it comprehends a novel concept?

There seem to be at least two kinds of confusion regarding novel concepts. In one, the brain simply can't form an abstract model from whatever information is being presented. It's where you can't ...
3
votes
1answer
181 views

Why does optogenetics not mean that perfect brain-computer interfaces are possible?

There have been multiple articles and videos circulating on the Internet claiming that optogenetics has made it possible to have perfect input/output to the brain from a computer. This is obviously ...
3
votes
1answer
112 views

Do different methods of testing memory for character sequences result in different brain activation?

Assume a certain sequence of N characters, displayed on a screen one by one, that should be memorized. The speed of the display is such that it doesn't produce much extra stress. You may assume that ...
3
votes
1answer
51 views

What are “linear spatial weightings” and “specific temporal windows” in Philiastides & Sajda (2006)?

I am undergraduate student in mathematics and a complete beginner in the field of neuroscience. I recently started a project in Mathematical biology which brought me to the above mentioned paper. I ...
3
votes
1answer
282 views

What are the neurological and psychological bases for chromophobia

According to this amusing, yet informative Cracked article, Phobia-source article and Chromophobia: do you have a fear of colours website, chromophoba is a fear of bright colours. This condition is ...
3
votes
2answers
138 views

Why neural architecture is not hardwired for N-dimensional vision but hardwired for abstract math?

In The Theoretical Minimum, in lecture 1, Leonard Susskind says that you can only visualize 3 dimentional images. (see yourself). Therefore, he says, in order to deal with N dimensions, you need to ...
3
votes
1answer
286 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 ...
3
votes
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 ...
3
votes
1answer
86 views

Dichotic listening tasks and crosstalk

In a dichotic listening task where participants listen to different (frequency-wise) musical tones through headphones, is cross talk to the contralateral cochlea of each ear through bone conduction a ...
3
votes
1answer
102 views

Is meaning-seeking behavior a biological optimization problem?

In short, I'm interested in cognitive, neuroscientific, biological and/or computational perspectives on what we vaguely refer to as meaning seeking. Of course, this is a large topic, but any ...
3
votes
1answer
39 views

Are there any fMRI decoding papers examining the relationship between attentional cueing and activity in V1?

I'm interested in reading on the influence of exogenous attention on cortical representations in early visual areas, but so far my google-fu seems to be failing me. There seems to be some literature ...
3
votes
2answers
30 views

Are there any programmes to identify modular “NeuroBricks”?

In synthetic biology, an organization called the BioBricks Foundation tries to identify modular biological components that are amenable to engineering design, and publishes them in the Registry of ...
3
votes
1answer
34 views

How does hPES compare to the learning rates of ANNs?

The primary learning mechanism of artificial neural networks (ANN) is back-propagation, which is not biologically plausible. Trevor Berkolay created an alternative to this learning with the ...
3
votes
1answer
54 views

Do the brains of non-altruistic persons mirror the observed experience of suffering?

Altruistic behavior can have different motivations: from the hope that the help you give will ultimately benefit yourself (social exchange theory) to a selfless wish to alleviate someone's suffering. ...
3
votes
1answer
184 views

What is the neurological mechanism responsible for losing one's temper?

I'd imagine that losing one's temper is quite normal, I can not think of anyone who has not experienced it. For me, it is rare, but does happen, I find that there can be 3 broad stages occur (note: ...
3
votes
1answer
200 views

What are new and exciting research areas or applications in systems neuroscience? [closed]

Like the title says, what are new and exciting research areas or applications in systems neuroscience? I know the question is a broad one, so let me narrow it down a bit: I will get my master's ...
3
votes
1answer
60 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 ...
3
votes
1answer
95 views

How does an understanding of the brain explain why people experience strong emotional responses to major sporting events?

Anyone know studies or theories that explain how massive competition events between countries or parties, like the Soccer World Cup Tournament finals or Olympic Games affect our brains? Why do people ...
3
votes
0answers
31 views

How does conscious rational internal thought gets initiated - what gives rise to it on any given day?

I'm reading a book called "The power of now" by Ekhart Tolle, and in that book he suggests that internal dialogue/monologue/planning/judging can be first observed, then disidentified with and ...
3
votes
0answers
25 views

What neurophysiological mechanisms are typically associated with distraction?

I've been looking into focus aids and I've come across some music which markets itself as entertaining your "limbic system". Although it's been asked before how music can affect mental states, I'm ...
3
votes
0answers
56 views

If stimulus triggers dopamine release, can dopamine release trigger memory recall of stimulus?

Modern science of sleep is starting to lean towards a viewpoint that dopamine has an important function in dreaming, and that dopaminergic pathways - mesolimbic and mesocortical are activated during ...
3
votes
0answers
128 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 ...
2
votes
2answers
295 views

Neural Microfilaments for Computation?

I just watched an interesting TED talk (http://www.youtube.com/watch?v=1d5RetvkkuQ) where a Stuart Hameroff proposes that a neuron's microtubules are responsible for computations, and that they are ...
2
votes
2answers
110 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, ...
2
votes
1answer
191 views

How does cognitive science explain distant intentionality and brain function in recipients?

Achterberg and colleagues' (2005) study, Concluded that instructions to a healer to make an intentional connection with a sensory isolated person can be correlated to changes in brain function ...
2
votes
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 ...
2
votes
1answer
72 views

Getting analysis of changes in MY brain upon cannabis consumption [closed]

I want to know if/how my brain differs from other brains. I'm also interested in knowing exactly how my brain changes when I smoke marijuana, as it is claimed that it affects individuals differently. ...
2
votes
1answer
572 views

What are the cognitive effects of increasing testosterone levels in men?

I've recently became interested in the effects if testosterone on the cognitive function in men, but cannot find much hard scientific evidence on the subject. What are the cognitive effects of ...
2
votes
1answer
77 views

To what extent does the awarness of the presence of others affect brain function and cognitive state?

This scope pertains to non-life threatening interactions and the awareness of the presence of a single or multiple individuals - (not direct conversation, not group mentality) just the presence. To ...
2
votes
1answer
54 views

What is the neurobiological difference between Jungian Judging and Perceiving individual?

Jungian or Myers Briggs type indicator reserves the last letter of a 4 letter archetype to stand for Judging or Perceiving. Part of being a Judging type is punctuality - being on time, keeping ...
2
votes
1answer
234 views

OCD Motivation and Dopamine Motivation, is there a connection?

I understand that OCD is something that causes sufferers to perform irrational behavour consciously, I also understand that the motivation comes from performing the irrational behaviour/behaviours to ...
2
votes
1answer
60 views

Do graphemes relate to communication and thought disorders?

The question Does language and/or culture affect an individual's cognitive capacity? explores the possibility of differences in cognition based on language and cultural variations. In this question ...
2
votes
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 ...
2
votes
1answer
81 views

Effective sampling rate in human visual system

The [stroboscopic effect][1] is often explained as one of the problems of sampling. If sample rate is too low, you might have the impression of the signal frequency being low or even reverse. There ...
2
votes
3answers
139 views

Neurological basis of selfishness?

Is there a neurological component to selfishness? Awhile back, I witnessed a mentally retarded person who was severely possessive of a water fountain, claiming it was "his". I've also seen ...
2
votes
1answer
104 views

How do thoughts work at the neuron level?

How does thought work at the biological level of individual neurons? I believe there are many neurons which are active in the brain at the same time. For example, our senses are constantly taking in ...
2
votes
1answer
163 views

How far can we train mental calculation?

Mental calculators are people with a prodigious ability in some area of mental calculation, such as multiplying large numbers or factoring large numbers. Unfortunately I forgot where I heard it, ...
2
votes
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 ...
2
votes
1answer
49 views

A subtle test for color-blindness

Is there a test method of proving a person being color-blind, without letting the test subject know, that he/she is being tested? E.g. showing the person cards with colored dots like depicted here is ...
2
votes
1answer
1k views

What does double dissociation really tell us?

In psychological research, a single dissociation is when a manipulation leaves one cognitive function (say, A) intact whilst severing another (say, B). This indicates the functions A and B are at ...
2
votes
1answer
105 views

Is workaholism similar to any addiction or are there other neurological mechanisms at play?

Some people are seemingly 'addicted' to their work and by doing work itself, almost to the point of precluding all other activities and interactions (usually social). By this question, I mean when ...
2
votes
0answers
15 views

What happens in the brain upon a subsequent exposure to a desired stimulus within a short time?

I'm trying to understand what happens within a person's brain when a focus on an object of desire is temporarily disrupted by an outside event. In particular, what happens when the person focuses on ...
2
votes
0answers
11 views

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 ...
2
votes
0answers
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 ...
2
votes
0answers
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 ...