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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453 views

Component naming of MEG vs. EEG

My question is why we use P and N for naming positive and negative EEG component(for instance N170 or P100) but for MEG data we use M in both case, I mean M170 and M100 in this example?
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221 views

Is the brain inherently social?

The concept of the "social brain" is thrown around a lot, but it's not entirely clear to me what it means. To me, it could mean a few different things: Modularity: We have some sort of modular, ...
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888 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 ...
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100 views

What are the benefits of giving feedback to subjects during a discrimination task?

Context I am planning an experiment where the subjects would need to determine the language of the stimulus after listening to it once, given two alternatives, L1 or L2. In total I have 500 trials ...
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1answer
423 views

What does “non-linear processing” mean, exactly?

In the following sentence from "How does the brain solve visual object recognition?" by DiCarlo et al.: In sum, our view is that the “output” of the ventral stream is reflexively expressed in ...
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177 views

Is it possible for any arbitrary able bodied human to develop exceptional cognitive talent & genius across multiple disciplines?

Can any arbitrary [able bodied] human become a genius across multiple disciplines or at least one discipline assuming that they have some Secondary Eduction in these disciplines? For example, the ...
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1answer
589 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 (frequency,...
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1answer
5k 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
132 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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3k views

Is there a part of the human brain responsible for triggering imagination, fantasy and coming up with unusual stories?

I'm trying to understand if there's a specific process or part of the human brain which, when activated, causes the person to daydream, engage in fantasy or come up with ideas that are far from common ...
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168 views

Can our auditory perception be used to trick our visual perception?

"Our consciousness lags 80 milliseconds behind actual events...The 80-millisecond rule plays all sorts of perceptual tricks on us. As long as a hand-clapper is less than 30 meters away, you hear and ...
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549 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 ...
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482 views

Neuroplasticity and Treatment of Depression

After reading 'The Brain That Changes Itself' by Norman Doidge, 'The Mind and The Brain' by Jeffrey Schwartz and a few other books, I've become curious about the science of neuroplasticity, which, as ...
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840 views

What is the consequence for the MBTI in not having a neuroticism factor?

This very interesting question: Do the Jungian Cognitive Functions/ Processes really exist? is dealing with neuroscientific attempts to show Jungian functions and preferences exists. In addition to ...
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265 views

NEO-FFI vs. NEO-FFI-3: What's the difference?

I just ran out of a large shipment of NEO-FFI booklets, so I went to order more from PARinc. This shipment has lasted since 2014. It seems that the original version of the NEO-FFI that I was using (...
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1answer
2k views

How do brain zaps occur?

I've recently witnessed someone undergoing brain zaps and subsequent panic attacks after having stopped their SSRI medication and 48 hours partying with heavy boozing and no sleep. Having reviewed ...
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255 views

How to explain utility function from personality, beliefs and ongoing emotions?

Economists widely use utility function (and more broader approach called hedonistic regression) but are there explanations or derivations of utility function from the perspective of cognitive sciences ...
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229 views

Threshold time for stimulus to be consciously perceived. Why?

A visual stimulus must last longer than some threshold duration to be perceived consciously. For example, a light dot flashed for a duration of 10ms can't be consciously perceived. Why? What prevents ...
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4k 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 ...
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98 views

Conceptual representations in brain by distributed groups of neurons

It seems generally agreed upon that semantic concepts are distributedly represented by groups and groups of groups of neurons spread over the cortex. Disregarding the localizations, shapes and ...
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125 views

Importing EGI eeg binary format data into R?

Are there R packages/functions for importing EGI eeg data format into R?
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143 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
76 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 [2]. Trevor Berkolay created an alternative to this learning with the ...
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65 views

Is there evidence of suppression of the frontal cortex during herding behavior?

Phenomena such as large-scale stock market sell-offs and financial panic in general are often explained in terms of herding behaviors. At how primitive of a level does one actually "follow the herd"...
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What introductory textbook is available about the corticostriatal brain circuitry?

I want to understand the basal ganglia better. In particular, I want to understand the role of the corticostriatal brain circuitry for non-motor functions, including emotion and cognition. I have ...
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1answer
767 views

Use of Botulinum toxin A (botox) to treat depression and its effect on fight/flight repsonse

Over in Health.SE, @faustus provided a couple of references to papers which suggest the use of Botulinum toxin A (BTA) - otherwise known as botox - to treat depression — Magid, et al. (2015a) and ...
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149 views

Do non-human primates exhibit the Kiki/Bouba effect?

After understanding that cats cannot experience the Kiki/Bouba effect, I wonder if smart non-human primates can experience it. There is evidence suggesting that Chimpanzees associate high pitch with ...
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85 views

How can higher concepts get unrolled with upward and feedback connections differing?

In the neocortex, input patterns are compressed hierarchically. Sensory inputs in the lower levels are combined by higher levels to form abstract concepts. However, there are even more feedback ...
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159 views

Any link between IQ and a person's ability to create or mimic sounds?

Reading some articles about animals and speech, and it just brushes a bit of the neurology of it, but that got me curious: Is there any link between a person's (or an animal's) mimicry skill and/or ...
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118 views

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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192 views

Does the brain need more sleep after heavy load?

Does the brain require more sleep in the following night, if you have used a lot more of its capacity that day than usually?
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148 views

What are the effects of visual deprivation on mental health and the other senses?

How do blind people who haven't always been visually impaired deal with their day-to-day lives? I've heard rumors (very, very unreliable rumors) that once you stay in the dark for too long you'll ...
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1answer
442 views

Computational model of biological object recognition

The human brain can achieve a remarkable ability to recognize visual patterns in an Invariant, selective and fast manner. The human visual system is quite powerful. It has an exquisite selectivity ...
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151 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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120 views

Is it possible to quantify/measure the effect of certain medication on our neurotransmitters and hormones?

Is it possible to display the effect of taking for example Prozac on level of Serotonin and other neurotransmitters/hormones in the body? More generally speaking s is it possible to say: taking 1mg ...
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59 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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131 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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59 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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101 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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72 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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151 views

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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8k views

What's the major difference between mind and brain?

I am preparing a presentation on "Mind Reading Computer", and all articles that I came across were focused on reading interpretations from brain through sensors. Articles like this clearly show a ...
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Is praying the Catholic rosary a meditation and does it enhance brain plasticity?

Futurism.com says that meditation can shape brains and increase brain plasticity and fit. Can we say that praying the Catholic rosary is a kind of meditation and does this prayer have all the benefits ...
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109 views

Can you get sad by sniffing onions, just like you can get happy by forcing yourself to smile?

I've read about a study where they found that people who were forced to keep a smile-like face were reportedly happier than those who were forced to stay in a frown-like a face. Similarly, could ...
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275 views

Can normal brain activity arise from no (or random) brain activity?

I wonder how stable the brain is as a dynamical system. In other words, how important the state (current activation) of the brain is for its further functioning. Would the brain recover from a state ...
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250 views

Neurosurgically grown neural link between two brains?

I guess it's possible to surgically restore neural connection after a trauma (e.g. a severed hand can be reattached if done quickly). And, from history of evolution of hominids, it seems that just by ...
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140 views

Are axons in the brain weighted?

Is it known whether the connection strength of synapses is important to the functioning of the brain or does just the binary existence of a synapse matter? Also, how widely do the strengths of ...
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160 views

Does a person experience release of dopamine while doing something she/he enjoys?

I am wondering if a person would experience an increase in the level of dopamine while doing something she/he enjoys such as playing guitar or reading a book. And what are some other neurotransmitter ...

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