Questions tagged [cognitive-neuroscience]

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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369 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 ...
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Why does learning new mental skills lead to headaches?

Why is deliberate practice uncomfortable? For example, during learning college math and playing the piano. Why do we get headaches after long hours of practice? According to this question, learning ...
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534 views

Has there been a neuroscientific explanation of the color phi phenomenon?

The color phi phenomenon is a perceptual illusion in the visual domain which was demonstrated in an experiment by Kolers and von Grunau (1976). The experiment is as follows. A sequence of coloured (...
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Does testosterone level cause more sexual dream content?

I have long been interested in dreaming, including how dream content can shed some light on brain chemistry. I did a search on the subject of testosterone levels altering dream content and see some ...
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Is it sufficient to say self control eliciting the reduced ERN (error-related negativity) in cognitive control tasks?

The limited resource model of self control suggests that the exertion of self control can impair performance in subsequent cognitive control tasks (for details on the model, check this question. Most ...
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50 views

Avoidance Vs. Procrastination? Dorsolateral prefrontal cortex and the go-no-go task

The left dorsolateral prefrontal cortex (Ldlpfc) and the ventromedial prefrontal cortex (vmpfc) has been identified as having some positive functional correlation to procrastination. From what I ...
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128 views

Will studying formal logic improves logical reasoning?

Reason for asking question: I am looking to see if there is any good empirical evidence or study that shows or suggests that studying former logic or maybe informal logic would actually improve ...
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56 views

Is the effect of music on stress just due to beat entrainment?

Different music genres have different beat and rhythm patterns. The lower beat and rhythm frequencies are similar to the frequency of heartbeat and this relax us. However in my opinion, it's relevant ...
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99 views

Is there a fundamental difference in the way we think while writing when compared to speaking?

I had a discussion with my friend recently about slip-ups in speech - the ones where you intented a gramatically correct sentence but somewhere between the conscious mind and your mouth a (usually ...
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59 views

Research on computational models of physiological mechanisms in affective neuroscience at a biochemical level

As computational neuroscience has the mainstream on single neuron/network modelling for biochemical aspect, and computational modelling of physiological mechanism of hippocampus for analytic study of ...
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69 views

Is the mind's adaptation to increased traveling speeds, physical or psychological?

When a motor vehicle increases in speed, we soon adjust to the faster pace of movement; seemingly by processing incoming information faster. Is this purely psychological, with the brain "dropping" ...
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What is the neurobiological basis of Spearman general factor of intelligence?

I found here a brief intro to genetic factor of human intelligence: http://www.ncbi.nlm.nih.gov/pubmed/1036362 Also there is known that gyrus hipocampii is basis of STM which have role in general ...
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What neurological processes occur with 'revulsion'?

As the title asks, what neurological processes occur when we feel revulsion? By revulsion, I mean the involuntary and voluntary physical and psychological responses far stronger than the aversion ...
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Are there any career(s)/career fields that are advantageous for people with Asperger's in “theory”?

What is the psychology/cognitive validity of this post reply for this question on Quora? "Most certainly, professions involving creating automation for processes that seem random. Hence, ...
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98 views

How do patients with an amputated limb experience and report their phantom perceptions?

[I changed "sensations" to "perceptions", due to @AliceD's comments here.] Suppose a patient with an amputated limb experiences and reports some phantom perception at the limb: the limb just being ...
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Region of Interest Proposal in Vision

In machine learning, Region of Interest (ROI) proposal is a method for subsampling an image to identify "interesting" subregions. A canonical example is from Region Convolutional Neural Networks, ...
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294 views

What neural mechanism explains the phenomenon that bad memories fade faster than good ones?

Several studies have suggested that negative memories fade faster than positive memories: Walker, Vogl and Thompson (1997) had the subjects kept dairy during a 3-month period, and rated the events on ...
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69 views

Does exercise substantially affect bloodflow to brain

The benefits of exercise on the psyche are well documented, encompassing catharsis, endorphin release, mental health improvements and self esteem. There is also evidence that it increases cognitive ...
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40 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 ...
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61 views

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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71 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 ...
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61 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 ...
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169 views

What functions does the brain perform to recognize a familiar object unconsciously?

Let's say a person's brain experiences how a vehicle/object looks for the very 1st time. It would require lot of attention/focus/processing to analyse the object, extract features and train its neural ...
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What is a good general reference on cognitive science in military training?

I know that one of the application of cognitive science is military science. Unfortunately I haven't found a good source on how cognitive science could benefit military training. Is there any ...
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98 views

What is the relationship between topographic maps and sensory memory?

Sensory maps are defined functionally: they exist for a certain time window, are overwritten quickly, are generally inaccessible to introspective control. Topographic maps are defined biologically: ...
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How does number sense develop in blind people?

From what I understand about number sense and numerical cognition, the visual system is heavily involved in the approximate number system and the object tracking system, which are at the root of ...
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slice spaing in rsFMRI

I have a rsFMRI sequence that includes slice spacing. I have not seen that before. Why anybody would add slice spacing between 2 measured slices? Is it a mistake or there is a rationale behind, eg ...
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Will acquiring a second language improves the person's general intelligence and reading?

According to this information will acquiring a second language improves the person's general intelligence and reading, even if the individual started learning and have learned it after the age of 18? ...
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60 views

What are the neuroscience research findings on the importance of breaks in cognitive function and specifically learning?

When I say breaks I mean breaks between periods of the same course, breaks between two distinct courses, single days of, weekends, couple days of, few days of, longer periods of holidays of duration ...
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56 views

Is dissociation/detachment associated with gamma wave?

In this answer, it is said that pain signals can be numbed by dissociating through detachment (a psychological effect). On the other hand, in the article "The Brain of Buddha" by Christof Koch, it ...
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68 views

Why does anxiety medication work?

It seems really odd to me that anxiety medication can work, because I can't understand how a medication can alter a feeling. My understanding is that the idea of anxiety medication is to alter ...
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51 views

If demyelination doesn't typically occur, what happens when a musician doesn't practice for a month?

In "The Talent Code," the author makes this statement: What's the simplest way to diminish the skills of a superstar talent? The answer: don't let them practice for a month. Causing skill to ...
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56 views

Which is the actual scientific position on the expression of human emotions?

According with Darwin's “Expression of the Emotions in Man and Animals”: specific emotional states seek to appear on each human being - even on blind people - , with no differences of cultures. ...
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60 views

How are abstract relations represented neurally?

It is known that concepts with similar attributes (color, shape... Etc.) are represented in a similar manner in the brain. However, is there any evidence of abstract relations, such as the as causal ...
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Is there any study about the impact on the continuous use of predictive keyboard by neurologically and psychologically health individuals?

As there is evidence of massive-scale emotional contagion through social networks, I'd like to know if any study has been made regarding predictive keyboards. Given the popularity of predictive ...
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76 views

Is it possible that human behavior cannot be formalized as an optimization problem?

It is common to explain humans behavior by having the brain follow a certain objective function, that may have been formed through evolution. Given the objective function and infinite computing ...
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What cognitive architectures out there combine multiple sensor streams?

It seems like most cognitive architectures are evaluated on toy problems that do not challenge more than one sense (usually the visual one). What neuronal cognitive architectures were evaluated in the ...
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175 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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244 views

Are partially forgotten memories still in your brain?

I have read articles such as... http://www.wired.com/2009/09/forgottenmemories/ and they say forgotten memories are still stored in your brain. What about partially remembered memories. For ...
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26 views

What happens neurologically and chemically when an individual is confused?

For example, trying to understand a mathematical problem and its solution, or abstract reasoning, but in the process get lost even have no clear idea of what part is 'not understood'
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Is it possible to segregate components of verbal and visuospatial working memory using n-back paradigm?

I am trying to segregate different components of verbal working memory and visuospatial working memory. In order to assess verbal working memory I am using an auditory version of n-back task with a ...
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137 views

Is there a neurological reason why women do not occupy top positions in the chess ranking?

I want to turn arround this question posted on chess exchange where sociological arguments are given to explain why only two of the world's top 100 chess players are women. Are there neurological ...
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60 views

Can new emotions be created or discovered?

Related: Are there emotions that only some people can feel? Is there any known observed or theoretical process by which new emotions could be observed or discovered? Although one may argue over the ...
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38 views

Does OCD play a major contribution in an individuals suffering from anorexia nervosa?

Although I have seen several studies that did substantiate low self esteem having a significant correlation with anorexia nervosa, but does OCD also play a major contribution in understanding the ...
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78 views

What's the pathfinding algorithm the human brain uses?

I was trying to build a software simulation of people using different pathways in a city to get from point A to point B. I do know the Dijkstra's algorithm and the A* algorithm, but what they do is to ...
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Has there been any neuroscientific study of polydactyly?

I have been reading about polydactyly and found that surgery is only necessary in certain cases. It depends on way the extra digit on the hand or foot is attached. For example, central polydactyly (...
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39 views

Which neurodevelopmental disorders constitute learning disabilities?

I am actually looking at DSM-5 but I cannot find any exhaustive or otherwise comprehensive list or explicit association of which neurodevelopmental disorders are also learning disabilities.
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1answer
135 views

Yes-No question in 2AFC staircase test

I understand the task of a 2AFC test is to select one of the two stimuli presented (e.g. the stronger one), whereas in Yes-No test there is only one stimulus presented. But is it ok to ask a Yes-No ...
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41 views

Bilingualism and cognitive decline (or dementia risk)

There's apparently a fairly contested research area of bilingualism being neuroprotective against cognitive decline in old age, such as dementia. What are the main points for and against this ...
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Convolutional Operations in the Visual Cortex

One of the fundamental operations in image neural networks is the operation of convolution, where a filter slides across the receptive field, activating on particular features. This is incredibly ...