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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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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1answer
353 views

Does taking antidepressants, anxiolytics and sleep pills significantly affect a person's intelligence?

Do antidepressants, anxiolytics and sleeping pills significantly affect the intelligence of a person, for example as expressed by the general (g) factor? Do these compounds affect the g factor each ...
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1answer
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Success rates or reviews of Brain Working Recursive Therapy (BWRT), and number of sessions needed on average

Brain Working Recursive Therapy (BWRT), introduced by hypnotherapist Terrence Watts in 2011, is a brand new form of therapy. Hence, my internet search doesn't seem to give me any idea of how ...
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1answer
103 views

Can you become “mentally” bilingual after 8?

Is it possible to learn a second language good enough to be able to think in it the same way we think in our first language after the critical language learning period?
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1answer
353 views

Calculation of d'prime in forced choice experiment

I am working on psychtoolbox and in my experiment I have given two images containing two roads (one is shortcut and other is longer way). In one image, the longest way is safe and in the other the ...
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1answer
77 views

What is the neural adaptation underlying the habituation to reversed visual images? [closed]

When a person wears glasses that reverse the image upside-down, it is possible to adjust your vision in a matter of days. What are the suggestions behind the neurological process?
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1answer
20 views

Can we learn to adapt to image-reversal when being intermittently exposed to them?

I know that human vision can get accustomed to reverse vision when wearing reverse glasses for several days. But does it work when we see the reverse image just in certain moments throughout the day? ...
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377 views

In which way emotional “interference” affect the brain / the behaviour?

Think of two different scenarios. In both scenarios the subject is looking at emotional images, but in the first one emotional stimuli "interfere" with the behaviour, while in the second one ...
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1answer
241 views

How to denoise and get rid of 1/f trend of a PSD in an EEG synchronization experiment

I'd appreciate some help from you guys. I'm currently analyzing an experiment where I've entrained participants to these frequencies: Condition 1: 4.16Hz-8.33Hz Condition 2: 2.77Hz-8.33Hz ...
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1answer
33 views

How to fix a nii or rec file with partial volume

The problem I have is that the MRI scan is stopped manually, before the exam card is completed. Thus data anaylsis programs read the header and expect a certain number of volumes but it has less, and ...
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0answers
29 views

Syncing up CPT device with EEG recording

I'm working on setting up an EEG experiment that will be going through a battery of various cognitive tasks. One of the tests is a Continuous Performance Task and to conduct that we'll be using a ...
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1answer
896 views

What are the advantages of 2AFC in a psychophysical discrimination task?

As far as I understand. In the task of Two alternative forced choice (2AFC), given two possible stimuli, $S1$ or $S2$, the subject has to decide weather he\she (it) saw the sequence $(S1,S2)$ or the ...
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Are there any approaches to measuring “physical”/“neurophysiological” aspects of one's intellectual tone/state of fluid intelligence?

Is it possible to measure/approximate/estimate intelligence with a physiological metric? What I mean is, if I put it correctly: to measure/estimate short-term memory capacity/long-term memory ...
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116 views

Is there a connection between synaptic density and cognitive capacity?

Are there studies that reveal how many synapses per mm3 are there in the average dolphin brain, compared to elephants and humans? I am wondering if there is a connection between synaptic density and ...
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1answer
122 views

Length of neuro-physiological signals of emotion compared to feeling time

In "Determinants of Emotion Duration and Underlying Psychological and Neural Mechanisms" by Verduyn et al. discuss how certain physiological signals are outlasted by actual feelings: In particular, ...
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2answers
9k views

What is the relationship between identity and personality?

I would like to know whether identity and personality are the same thing, as they both answer the question of who you are. Nevertheless in a cognitive approach, identity is considered a part of ...
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1answer
3k views

Difference between the cingulate gyrus and the cingulate cortex

I am doing an analysis of the brain of the Creature in Frankenstein by looking at its actions and experiences from a scientific perspective. For this, I was wondering: What is the difference between ...
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1answer
49 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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1answer
57 views

Any study related to intimacy with nature and link with how it affects hormones or other chemical equations of brain?

I was looking for some research study that links activity/response of brain stimulated due to natural scenery (or walk but i guess that is more implausible situation just to track what is going on in ...
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1answer
70 views

Marr's analysis for ball pursuit

Marr (1982) identified three levels at which we can describe information processing systems, including the human mind: the computational level, the algorithmic/representation level, and the ...
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1answer
141 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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1answer
80 views

Searching for real biological neuron firing data [numeric] [closed]

I am searching for real neuron firing data, so I can look at each neuron for fire timing (frequency) and incoming/outgoing signal-strength. I already found short youtube videos of real neuron firing ...
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2answers
357 views

How often are complex networks and graph theory useful in computational neuroscience?

Complex networks and graph theory seem like they would be important for computational neuroscience, but they don't come up in the literature as often as I would expect. I'm wondering how frequently ...
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0answers
176 views

Which is more important for computational neuroscience: differential equations or linear algebra? [closed]

I know that they are both used in computational neuroscience. However, I am trying to optimize my studying, so it might be useful to know which to focus more time upon, at least in the beginning.
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37 views

Is there evidence to suggest that one's epistemic preference is fixed or is flexible?

We know that there are methods of obtaining knowledge. These being: Observation or experience. Reason or Logic Modelling Testimony. Authority. Truth by message. Some call this epistemic ...
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142 views

Unconscious Racial and Gender Biases: The role of IAT

Recently the term unconscious bias, referring to race and sex, has increasingly appeared in the media. It appears that the support for these terms come from research conducted using the Implicit ...
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1answer
1k views

Does Computer science has any role to play in Cognitive science? [closed]

Does Computer science(or computationalism) has any role to play in Cognitive science or Creativity studies?
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100 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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2answers
756 views

Where can I get data on lie detection and brain activity?

Are there databases or data sets that contain metrics about lie detection? The data would include variables such as: Did the subject lie? (0 or 1 variable) Brain activity measures (fMRI, EEG) when ...
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298 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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2answers
357 views

Apart from sleep, does the brain needs rest?

I am a graduate student in CS, and naturally, I take several breaks a day from studying, but I feel that most of those breaks are habit-influenced and that I do not absolutely need to get off my seat ...
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1answer
170 views

Can people improve their memory by training themselves to recall previously forgotten memories?

Apparently, somebody has recalled previously forgotton memories and become able to speak fluent french after a coma. I'm wondering if people can also train themselves to be good at recalling ...
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0answers
38 views

Alzheimer's, Mulla Nasrudin and disjunction of cognition and personal identity [closed]

I was reading a paper discussing the persistence of self in advanced Alzheimer's Disease Persistence of Self in advanced AD and was struck by the similarity of one contradictory account to an Idres ...
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0answers
38 views

Interpretation of Halstead-Reitan Impairment Index Parameter

How does one best interpret the Halstead-Reitan Index ranging from 0.0 to 1 ? How closely is this assessment of neurocognition subsequent to injury correlated to structural arrangement of the brain ...
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3answers
289 views

Thinking with organs/systems other than the brain

Neurohormones are produced in many different bodily systems other than the brain--skin, intestines, stomach, etc. Has there been any research suggesting whether or not some people might actually ...
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0answers
146 views

Post-coital effects on human cognition [closed]

I often see couples fight after sex. Why is this? Is there an actual biological effects (release of endorphins or other hormones) post-coitus (or post-orgasm) that would increase irritability in an ...
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2answers
84 views

What is meant by this theory that there are only 3 possible kinds of cognitive loads?

I don't understand this theory that states there are only three kinds of mental loads: The theory is that there are basically three different kinds of demands or loads that you can make on a ...
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2answers
1k views

What's the difference between computational neuroscience and systems neuroscience?

I'm an engineer, interested in mental machinery, to imitate cognitive capabilities of the human mind into primitive artificial models. In this case, cognitive neuroscience (CogN) is something, ...
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2answers
174 views

Why is Potassium(K) important to neurology & the brain?

When researching the pharmacological mechanisms of action and interactions that various psychotropic drugs, poisons, neurotoxins, etc. have on the brain: I frequently see off-hand references to the ...
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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
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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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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1answer
796 views

How does the brain structure 3D visual data?

Adobe Illustrator has taken over five minutes (and counting) to render a vector 2D image rotated 18° in 3D on my computer. And yet, I and nearly anyone else can easily visualize the subject rotated ...
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0answers
47 views

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 ...
2
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1answer
318 views

Is it possible to read words a person thinking about via EEG headsets?

There are now a number of EEG headsets that can capture bran signals and give you raw EEG data from brain. EPOC Emotiv is one the famous one with I guess 14 channel. Now as the title of this post ...
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1answer
750 views

How do people with a split brain experience reality?

Some people with severe epileptic seizures have the connection between their two brain halves cut. How appears reality for them, and why does this procedure helps them?
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2answers
268 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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0answers
130 views

EEG electrode cluster selection

Is there a good review paper on electrode selection in EEG analysis to avoid the problem of double dipping (Kilner, 2013)? This is a well documented issue in neuroimaging (Kriegeskorte et al, 2009; ...
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1answer
1k views

Information storage capacity of a neural network?

I seem to remember reading about some equation that states the amount of information that can be held by a neural network with n neurons in it arranged in l layers, or something vaguely like that (n ...
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1answer
121 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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