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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41 views

How a living being (a huge collection of atoms) perceive things? [duplicate]

How a series of physical and chemical events leads to a very non physical/ intangible perception? For example, let's say a certain wavelength of light falls on the retina of my eyes, then the sensory ...
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1answer
67 views

Does thinking or focusing on something alter a neuron's speed?

I Googled about this but couldn't find any thing precise to be that does thinking about something hard alters the speed of neurons impulses? I have heard of neurons velocity being variable but want to ...
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Is there any categorization of cognitive abilities based on brain structure and biology?

I'm pretty sure that the answer to the following question is yes : Is there any categorization of cognitive abilities based on brain structure and biology? However, because I'm a newbie, I'm kind of ...
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26 views

Can one neuron denrdite be involved in different memories?

It's clear that neurons are involved in whatever memory. Suppose I see the image of a bird taking off over and over again. The image becomes imprinted in my memory. So when I think about this ...
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45 views

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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20 views

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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Neuronal mechanisms underlying delusional beliefs about one's thoughts

Are there known neuronal mechanisms that somehow explain phenomena like thought withdrawal thought insertion thought broadcasting i.e. deviating-from-normal experiences and beliefs about one's ...
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2answers
89 views

What can coma patients report about their experiences - if anything?

Coma is correlated to a significant inactivity of the cerebral cortex and the reticular activating system, while other parts of the brain - e.g. the limbic system - might still show considerable ...
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1answer
58 views

Does an electrical stimulation of a right claustrum leads to a temporary loss of consciousness?

In a study by Koubeissi et al. (2014) there was an experiment on a patient to find out which part of the brain caused her epilepsy. In this experiment they have found out that if they electrically ...
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3answers
605 views

Predicting the individual effects of psychotropic drugs

https://www.ncbi.nlm.nih.gov/m/pubmed/23796468/ I have searched the national library of medicine but I could not find any papers about predicting both the therapeutic and adverse effects on the ...
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67 views

Using the Brain too much?

The question is under what conditions can we overuse our brain? To be concrete lets focus on mental tasks like coding and math problem solving. Q1: How many hours of "fun"(i.e. stressfree) problem ...
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1answer
26 views

Is the approximation of the Medial Frontal Gyrus in the region of the Dorsolateral Prefrontal Cortex?

I'm wondering if the MFG is located in the region considered the DLPFC?
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1answer
32 views

Mismatch negativity vs. mismatch response

MMN x MMR - mismatch negativity versus mismatch response: How are the concepts related and what is the difference between them?
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Triggering false sense of stimulus

When I pinch my right upper inner thigh I get a tingling sensation on my right upper forearm (on the inner side (near the place my forearm is touching the desk as I type)). I have had similar ...
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1answer
1k views

How does intelligence or general cognitive ability vary with level of CO₂?

The cognitive ability of humans is varies with the concentration of CO₂ in breathing air. But how does it vary? A very high concentration causes sleepiness, and sleepiness is a state of reduced ...
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28 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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2answers
90 views

What is the state of the art research of the consciousness level for high-level cognitive activity?

Everybody knows situations where activities requiring concentration and high level consciousness can over time become a "background" task. For example: you read a text aloud but think about other ...
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1answer
37 views

Has there been any research on the visual uniqueness (in terms of brain activity) of numerals from 0 to 9?

I need to carry out EEG experiments with stimuli being images of 5 digits between 0 and 9. In order to select these 5 digits, I wanted to know if there has been any research work that measures ...
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70 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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158 views

Noise ceiling estimate is lower than model prediction in RSA?

I am using representational similarity analyses (RSA) to compare models to some fMRI data. As part of this analysis I have computed noise ceilings for each of my regions of interest (ROIs). What's ...
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126 views

Neurodevelopmental Disorders, Cognitive Function and Causing someone to Learn

Children may elicit, either through active engagement or some feature of their personality or appearance, a response from their environment that might protect them from deprivation-related risk either ...
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0answers
28 views

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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0answers
33 views

Reproducible Dynamic Causal Modeling/ model based effective connectivity analysis for fMRI

I am doing a Masters degree in Cognitive Neuroscience and was thinking on doing my master thesis on effective connectivity in Theory of Mind. I like the model-based approach of Dynamic Causal Modeling ...
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0answers
149 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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1answer
182 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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0answers
52 views

How to analyse skin conductance in r studio? [closed]

Anyone knows if skin condutance may be analised by some package in r studio? I have a signal in txt.file and I need to analyse, however I dont have any tool or software to do this beyond the R.
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1answer
89 views

How much we should trust our brain

Our brain is trained from culture and environment that we're raised in. So we don't control what we're learning until we get to teenage. But by that time our behaviour is already been shaped. This ...
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0answers
51 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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0answers
257 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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1answer
33 views

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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26 views

Active Sources Extraction

I am using the LORETA-KEY software for source localization, which gives as an output the current density of each voxel. No voxel has zero current density, so which method should be used to decide the ...
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93 views

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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1answer
43 views

Is doubting a claim more taxing in terms of energy spent by the brain?

I was at a conference some time ago in a university near my city, a Neurologist was part of the various talks held there, and in his words: "There is a, let's call it Neuro-Psychologic ...
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1answer
136 views

Is there a specific term for the notion of storing "algorithms" in human memory?

It seems to me that there is a pretty sharp distinction between storing a "fact" like "Chickens are birds" and storing an algorithm or routine like "how to multiply two 3-digit numbers". I find the ...
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1answer
62 views

Ritalin for treating attention and lack of focus in depression

I’d like to know if there’s research about the use of ritalin for treating attention deficit in Major Depression Disorder.
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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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35 views

Timeframe in which thoughts are concieved [closed]

Are thoughts concieved in realtime or are they preprocessed chains ready to be thought or both (depending on the prospective) or am I asking a too generalized question to have any sense ?
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2answers
152 views

Analyzing EEG time-frequency data in a factorial design

I am trying to find the best strategy to analyze a set of EEG time-frequency data from 24 subjects, using 64 electrodes. This is an exploratory study as I have no a-priori hypothesis on where or when ...
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0answers
89 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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2answers
221 views

correction for multiple comparison over many ROIs

I would like to know how to correct a p value of a stiatistic when the same test was run over multiple regions of interest. The modality is MEG. So, I have 4 Regions Of Interests, and I ran the same ...
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0answers
32 views

Does blood pressure increase during deliberate period of focus?

Does blood pressure increase during a deliberate period of focus? My reason for formulating this hypothesis is personal experience. A simple example is when I work, sitting, at the PC. Let's say I ...
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1answer
303 views

What is the exact chemical reaction that gives consciousness? [closed]

Something very bizarre is consciousness, it is our ability to virtually feel things such as emotions and ability to control our thoughts and physical movement. We can also imagine a non-conscious ...
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77 views

Has the perception of time changed over the last century? (e.g. 1960's vs. now)

How does one measure perception of time? And has it changed over the last century? My gut feeling says that people in the 50s & 60s found time to be passing slower compared to people in the ...
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1answer
116 views

Why can't human thoughts be stored in metals?

As metals are good conductors of electricity and they can be charged by the electrical activity of thoughts, why can't human thoughts be stored in metals? Why thoughts cannot be stored in the form of ...
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51 views

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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1answer
102 views

Is the Thatcher Face Illusion only limited to face recognition?

The so called Thatcher-Illusion has been documented not only on humans but also in some monkeys. However I can't find literature clearing out if this effect only applies to face-recognition. What ...
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18 views

Have there been any right-hemisphere-dominant split-brain-patients? [closed]

Do any case studies of right-hemisphere dominant individuals who have undergone a severance of the corpus callosum exist? Thanks.
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1answer
512 views

Is there a Big Five personality assessment under an open-commercial license?

I am currently working on a project with a few students. It's an app that can test the big 5 personality test. The problem is, I am having trouble finding one that is under an open license and that we ...
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1answer
51 views

Do people still use ACT-R?

A lot of computational cognitive scientists seem to be working on Neural nets (mostly vision scientists), Reinforcement learning (mostly decision making people) and Bayesian Inferences. I could hardly ...
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43 views

Stress vs. Testing

I was reading somewhere and found that there are various levels of stress depending on time. It said that when under stress for 30 mins, memory is not as efficient. So I have two questions here. A- Is ...

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