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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0answers
38 views

Why is it hard to not read some text

I have observed this and felt very uncontrollable. Whenever I see some text (in a language that I know) I start reading automatically. I don't see them as some curves... With intense focus I could ...
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1answer
532 views

How do auditory and visual hallucinations differ within the brain?

I asked this question. It occurs to me that auditory hallucinations may well be generated in a different part of the brain to visual hallucinations. From my understanding, some hallucinations involve ...
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Why we do what we aren't allowed to do

Don't touch the red button, or don't touch that chocolate cake while I'm gone. Why is it that we most likely will touch them anyway?
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1answer
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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1answer
110 views

Why do brains prefer internal consistency?

I need to preface this by saying I know next to nothing about this topic, so if the question is built on wrong premises, feel free to address that in an answer. From and related to: What is the ...
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1answer
33 views

What is a effective and interactive exercise to demonstrate cognition to a class

I'm new to this site so I may mess up here and there with the question process. I need to come up with an interactive exercise for a class to demonstrate cognition. The problem is, I find cognition ...
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28 views

What ways are there to think? [duplicate]

When I think, I generally think in words (in English primarily, though sometimes in Russian). Essentially, I speak to myself in my mind, and ask questions and formulate plans. However, sometimes I ...
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1answer
161 views

How do humans perceive height or vertical drop?

I'm looking at this video: Neil Burgess: How your brain tells you where you are, which discusses neurons within the brain that help people remember where stuff is in relation to other objects. I'm ...
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Mirror neurons in different ape & child rearing

Somewhere in the the past I saw a study talking about a type of ape that raises it's young in creches, unlike chimpanzees which at most carefully choose occasional babysitters. The study made the case ...
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1answer
46 views

Brain areas active while learning hierarchical structure of a problem

There are multiple examples in the machine learning literature of trying to learn the hierarchical structure of a reinforcement learning problem, however have there been any papers tying this learning ...
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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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1answer
524 views

Can you give an example of automatic appraisal process?

I was reading this slide provided by my prof. of Affective Neuroscience. I've read that appraisal is considered a constitutive component of emotion by most of the actual theories. Appraisal is defined ...
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1answer
98 views

Are the skills trained and learn from world memory championship transferable?

I recently learn something about world memory championship and I am considering to embark on some training. But I would like to know if the skills trained and learn from world memory championship are ...
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40 views

Longitudinal studies on: how attention to emotional stimuli develops from infancy to childhood?

According to LeDoux’s model (1996) we have specialized pathways for processing emotional cues. Pourtois, Schettino and Vuilleumier (2013) offer a neural model of how emotional signals capture ...
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1answer
306 views

Is detection of angry faces more efficient in humans?

Hansen and hansen proposed the anger superiority effect: threatening faces pop out of crowds, perhaps as a result of a preattentive, parallel search for signals of direct threat. Pinkham (2010) ...
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1answer
272 views

How exactly does transcranial direct current stimulation (tDCS) work?

The method of transcranial direct current stimulation (tDCS) involves the flow of electric charge from a positive electrode to a negative one. This method is not exactly a stimulation method because ...
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1answer
50 views

Books on Neurological functions?

Are there any books anyone can recommend that do not have any or much in the way of prerequisites but go through the anatomy of the central nervous system while laying out in detail the functions of ...
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4answers
2k 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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1answer
319 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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218 views

Do central pattern generators control musical performance?

Are the sometimes very fast and complicated rhythmic movements and often long lasting patterns a musician performs while playing a piece of music generated by central pattern generators (in the sense ...
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155 views

How to analyse EEG files recorded from Brain Products V-Amp (Brain Vision Recorder)?

I have 3 files recorded from Brain Vision Recorder. They are in the following formats: .eeg .amrk ...
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2answers
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
44 views

Representations of negated propositions

The following question is quite hypothetical, and just to get an idea. Assume any model of how positive propositions $p$ are actively (opposed to synaptically) represented in a neural network, e.g. "...
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1answer
204 views

Benefits of Preserving Dopamine

I recently came across a short piece on Twitter advocating for the preservation of dopamine release. The writer stated that a list of things should be avoided to preserve dopamine. Preserve your ...
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1answer
42 views

Does a comparable metaphor exist for cognition that exists for slow & fast twitch muscle fibers?

Skeletal muscles have slow and fast twitch fibers that differ in their rate of fatigue. Is there an analogue in the subject of cognition? For example I might be very quick at doing coding but very ...
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100 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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34 views

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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3answers
469 views

Is there a neural network model of Pavlovian Learning?

I am trying to find a computer simulation of Pavlovian learning. i.e. an action such as salivation in response to a stimulus such as a bell ringing. Most neural network models I've seen seem to be ...
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34 views

Are there any methodological challenges to study real-time social interactions?

If the emotion of fear (for example) has evolved so that humans can react in an adapted way to danger, why would we be afraid in a laboratory setting, and would this fear be similar to that we ...
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2answers
113 views

What leaps in technology would be needed to scan the total state of the human brain? [closed]

What technological leaps would be necessary to capture the absolute state of the brain? This would need to include: a representation of each neuron a representation of each neural connection the ...
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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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1answer
32 views

Do action potential thresholds vary in “capacity” significantly, and if so, does input frequency correspond to action potential thresholds?

To clarify, I'm asking if the level of stimulation / polarization required for a neuron to reach action potential / excite the neuron varies significantly from neuron to neuron- even differing in ...
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2answers
940 views

Can drugs cause positive reinforcement for undesirable tasks?

For this example, I will use alcohol as an example drug, since it's legal and increases dopamine. Can drinking alcohol when performing unpleasant tasks, such as homework, cleaning, or laundry confuse ...
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1answer
44 views

Cockroach olfactory bulb response to novel stimuli

I've heard anecdotally, that the cockroach olfactory bulb responds differently to novel stimuli vs. known stimuli. Specifically, it sends an oscillatory firing pattern for known stimuli and a constant ...
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2answers
152 views

Efficiency of multitasking depending on task difficulty

How does the efficiency of multi-tasking differ by task type? My understanding is that multitasking impairs efficiency for cognitively challenging tasks. Does this apply to trivial tasks as well?
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1answer
338 views

During body-scan ('sweeping') meditation, what does brain-imaging (e.g. fMRI) look like?

I do not know how extensive body scans have been studied with brain-imaging techniques, e.g. fMRI. Body scan is a meditation technique developed by Jon Kabat-Zinn. It was derived from a meditation ...
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2answers
92 views

Can we identify specific emotions on the basis of fMRI scans?

I am looking for fMRI studies in which the emotional response of a person listening to music is visible in the fMRI scans, paralleled by a retrospective think aloud report of the person describing his/...
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60 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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54 views

Single person with largest number of fMRI scans [closed]

Is there a known single test person of whom the largest number of fMRI scans (while performing different tasks) have been recorded? Are these publicly available? I assume some overarching patterns ...
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1answer
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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0answers
78 views

Hypothetical working and function of grandmother cells [closed]

I wonder, if the following model of the working and function of hypothetical grandmother cells is worthy of consideration or not (or if it is even a common view, just differently stated). I assume ...
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1answer
105 views

The role of high-performance in neuropsychology

As far as I understand, neuropsychology gains most of its insights from the reconciliation of lesions of the brain and cognitive impairments. Normal functioning (both of the brain and the mind) plays ...
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1answer
1k views

How do we hear our inner voice?

How do we perceive inner speech? Does it follow the same neural pathways as normal acoustic speech? If yes, what is the extent of overlap between the two neural pathways?
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109 views

Which long-term effects can hypocortisolism have on behavior?

Chronic stress can have a serious impact on our physical as well as psychological health due to sustained high levels of the chemicals released in the ‘fight or flight’ response. In abused children ...
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1answer
62 views

Does increased neural complexity slows down brain operation speeds?

If a sensory input is perceived, one needs to process this input from the sensory end organ (sensation) up to the brain (perception). Does a more more complex neural network consume more time than a ...
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1answer
362 views

What is the computational role of the cortical column?

The cortex is supposedly composed of semi uniform cortical columns that are interlinked. Many of the resources on cortical columns I found using a Google search do not discuss what a column computes (...
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3answers
300 views

What are the cognitive and neurological bases for apathy?

Apathy, or effectively the feeling of "not caring" or putting it colloquially, "not giving a rats", is something that most of us get sometime or another in varying degrees. My question is, what are ...
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1answer
147 views

Does night-sleep-deprivation have any effect on cognitive performance?

Sleeping during the day might lead e.g. to vitamin D deficiency. But I am interested in what effects might night-sleep-deprivation have on cognitive faculties. Does sleeping during the day and ...
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0answers
172 views

Which Meditation Techniques Correlate Best with Certain Brain-Waves? [closed]

Which meditation techniques are better at "entraining(?)" specifically desired brainwaves? For each brainwave range, (Alpha, Theta, etc) - are certain meditative technique more effective? For ...
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0answers
57 views

Brain extraction and save images as .img file [closed]

I have been working on Auditory data (from FIL) to read the .img files as numeric numbers of intensity of each voxels over time in array/matrix format using AnalyzeFMRI package in R. It gives me ...

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