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
525
questions
7
votes
1
answer
436
views
Is there any neuroscience research on the emotion of feeling nothing?
When people entering anechoic chambers, logically there is a sensation of silence because relatively speaking, the sound levels are much lower compared to some normal baseline
Likewise, when there is ...
2
votes
1
answer
48
views
Research and theories related to the physical form of Cognitive Fallacies
Is there any research about what physically happens inside our brain anatomically and neurologically when we humans commit cognitive fallacies (especially those fallacies documented in the book of ...
3
votes
0
answers
217
views
Why do we feel inclined to doodle on paper when talking over the phone but not when talking in person?
Introduction:
Revisiting an earlier theme about "mind complementary activities", as I would call them, it dawned on me that the classical example of how doodling on paper complements talking ...
6
votes
3
answers
6k
views
Do stimulants increase the IQ tests score for everyone?
There is some meta-analytic evidence that stimulants increase the IQ test scores of ADHD children by 2 to 7 points (Jepsen et al., 2009).
Although giving stimulants to non-ADHD children may be ...
2
votes
0
answers
23
views
What is the role of mesolimbic dopamine in associative or reinforcement learning?
I was recently told about a Science paper that suggests the old model of association of cause with effect is incorrect. In this model, cue comes, reward occurs, cue comes again, prediction of reward ...
1
vote
0
answers
31
views
What does the current literature say on the relationship of psychedelic drugs and neuroplasticity?
The majority of my understanding of the current literature comes from this paper found in Nature.
The purpose of the paper is to examine "specific questions about the effects of psychedelics on ...
0
votes
0
answers
36
views
Having issue in functional connectivity of difference matrix between patient group and control group
I am following a paper to calculate functional connectivity of difference between MDD (major depressive disorder group) and Control group. I am getting more connectivity in MDD as compared to control ...
4
votes
1
answer
141
views
How different is the neural activity in different individuals when they are doing the same tasks?
Today, we can measure EEG (or fMRI) in different individuals and use machine learning to predict their thinking. I want to know if the exact neural patterns (fMRI, EGG etc.) are still similar across ...
3
votes
0
answers
47
views
How is the distinction between discrete and continuous materialized in the brain
It's generally admitted that some things are continuous (e.g. quantity of water, the length of a stick) whereas some other are not (how many oranges do I have in my bag?).
In mathematics, discrete ...
0
votes
0
answers
23
views
How to get a psychology research assistant position?
I am a recent postgraduate student of social psychology and I have been trying to look for RA positions without much luck. My applications are getting rejected without any feedback and I am a little ...
24
votes
3
answers
58k
views
Is there scientific evidence on the benefits of binaural beats?
When two coherent sounds with nearly similar frequencies are presented to each ear respectively with stereo headphones, the brain integrates the two signals and produces a sensation of a third sound ...
1
vote
2
answers
172
views
Is it true that mirror neurons can make a man with an amputated arm feel sensation just by looking at someone else's arm, like Ramachandran said?
In this Ted Talk Ramachandran sais that mirror neurons can make a person with an amputated arm feel sensation, is it true? And if so, why doesn't the brain feel a sensation by looking at someone else'...
0
votes
0
answers
51
views
Can a psychiatrist himself need psychological help after working with a mentally ill patient and how can he protect himself from this? [duplicate]
A psychiatrist identifies mental disorders and pathologies, diagnoses, treats and prevents them. Process of implementing non-pharmacological psychological correction of the patient’s psycho-emotional ...
6
votes
3
answers
1k
views
Why is it so difficult to use a "true mirror" as a mirror
This Youtube video shows what a "true mirror" is: https://www.youtube.com/watch?v=ZSxCZCy5Wsk
In short, when you look into a true mirror you look at yourself (among other things) as you really are, ...
0
votes
0
answers
24
views
Commonality of Personality disorders [duplicate]
Why is NPD are OCPD,BPD classfied as personality disorder? Especially for the last one.
3
votes
1
answer
73
views
Doubt about zero-crossings detection in the visual system
I'm currently reading the excellent book "Vision" by David Marr. In chapter 2.2 (ZERO-CROSSINGS AND THE RAW PRIMAL SKETCH), he explains a possible model for the physiological detection of ...
0
votes
0
answers
18
views
Why does handedness suggest that the brain is asymmetrical?
From The Human Mind, by Paul Bloom:
If you just look at a brain - if you remove it from somebody's head and put it on the table - it looks symmetrical. But it isn't. The asymmetry of the brain is ...
0
votes
0
answers
15
views
At what rate and to what extent do metabolic waste products from neurons diffuse throughout the brain?
At what rate and to what extent do metabolic waste products from neurons diffuse throughout the brain?
Do the metabolic waste products remain local to the neurons being used, or do those waste ...
2
votes
0
answers
109
views
Is stimming purely a trait within autism?
Stimming is the repetitive movements often seen in Autism.
Kapp, et al. (2019). states that:
‘Stereotyped or repetitive motor movements’ are characterised as core features in the diagnosis of autism, ...
1
vote
0
answers
18
views
MNI vs. study-specific template in ABIDE ASD datasets
I'm new to MRI analysis and don't think I can properly gauge the implications to subsequent spatial analysis of performing registration to the MNI152 template. The form of analysis I'm conducting ...
0
votes
0
answers
20
views
Correlation of Gene Expression with Dynamic Imaging Phenotypes
I've been researching the process of performing a spatial correlation between gene expression in the brain and particular imaging phenotypes such as structural white matter connectivity. My research ...
1
vote
0
answers
57
views
Neuroimaging vs. Gene Expression for Neurological Disorders
As someone who has recently started learning about how we study the brain, the two most common forms of data I've encountered are neuroimaging data (fMRI scans, etc.) of the brain's distribution of ...
4
votes
0
answers
30
views
Gene Expression Database for Psychological Disorders
Is there a comprehensive database available online of gene expression across the brain taken from individuals with psychological conditions? Resources like the Allen Institute's Human Brain Map (link ...
0
votes
0
answers
25
views
Does growing up with digital technology make it easier to integrate with it?
I was watching a documentary called "Was geht noch ohne Internet" on the ARDmediathek, and in it, was discussed how it is difficult for old people to become internet literate. There were ...
2
votes
0
answers
22
views
Is there a complete overview and classification of all Probabilistic Neuronal Codes (PPC)?
I am trying to gather an explicit and complete overview of so-called Probabilistic Neuronal Codes (PPC). I have found various PPC models from literature, but have difficulties having them classified, ...
1
vote
0
answers
35
views
Roles of Brain Regions (neocortex and hippocampus) in Explicit (declarative) LTM
My question is what is the role of the hippocampus, neocortex and amygdala in the encoding, storage and retrieval of declarative (explicit) memory, specifically episodic and semantic
I am sort of ...
10
votes
1
answer
2k
views
What is the information storage capacity of the human brain?
Related/bonus points: 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 ...
1
vote
0
answers
45
views
Is it possible to completely describe a real object in terms of brain activity?
I've read that the way perception works in the brain, stimuli from the external world is converted into signals that travel through the brain until they reach regions of the brain that can "...
1
vote
0
answers
33
views
Does mindfulness involve negative feedback loops in the brain?
Mindfulness is defined as a type of meditation in which you focus on being intensely aware of what you're sensing and feeling in the moment, without interpretation or judgment. Is the neurological ...
4
votes
2
answers
803
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 ...
0
votes
1
answer
35
views
Network Architecture Diagram
I am trying to teach myself some computational neuroscience and am reading through the following textbook: https://www.oxcns.org/b6_text.html.
I'm finding this diagram confusing in particular c). My ...
0
votes
0
answers
44
views
Is there such a thing as "emotional impedance"?
More specifically, what I would call emotional reactance. What this is would be the emotional equivalent of electrical reactance(which is the opposition to changes in voltage and current flow). So a ...
3
votes
1
answer
59
views
Which unit should be used to compare perceived spatial frequency of 2 different sized image? Cycle per image or cycle per degree?
I am interested in the topic of spatial frequency and its impact on face processing. I have been reading about previous studies that have used different spatial filtering thresholds for their stimuli. ...
2
votes
0
answers
50
views
Is there any neurological research on schema theory?
I noticed schema theory is frequently mentioned in educational psychology and sociocultural topics but didn't find neurological research related to it. I wonder if there are some shared mechanisms ...
0
votes
0
answers
65
views
Could we create a psychopath?
I am new here, so I apologize if this question violates any of the rules of this community. A question that has kept bugging me for few months is whether, we could alter the brain chemistry of a ...
6
votes
1
answer
362
views
Can hallucinogens treat depressive states?
Given the serotonin hypothesis of depression, increasing synaptic serotonin level may cause anti-depressive effects.
Hallucinogens seems to have such advantages:
They improve mood at once, but not ...
2
votes
0
answers
47
views
What role does the brain play in some eye diseases such as myopia and astygmatism?
I wondered if the brain is partially responsible for some vision problems that are usually solely attributed to the eyes even if the primary dysfunction happens in the eye.
For instance,in eye ...
5
votes
1
answer
451
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 ...
3
votes
1
answer
69
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. "...
7
votes
3
answers
345
views
Is it possible to erase problematic memories?
This question is inspired by a question I answered on Health.
Can we erase problematic memories to aid recovery from depression?
A depressed person asked how to erase specific unpleasant memories ...
1
vote
1
answer
46
views
Neuroligins, neurexins and synaptic gaps
Further to Are all synapses "gappy", and what exactly is in the gap?, I found an open access article (Biswas et al. 2008) pointing out that
Vertebrate studies show neuroligins and neurexins ...
7
votes
2
answers
2k
views
Why could too much BDNF be detrimental in terms of depression and memory?
I am interested in looking at the effects of too much BDNF and other proteins such as repressor element one silencing transcription factor (REST). Most research suggest that elevated levels are ...
2
votes
1
answer
290
views
How to evaluate the convergence of a staircase?
I have a 2AFC staircase, with transformed up and down method (2up 1 down) or (2down 1 up), with equal step size (at the beginning there are higher step sizes, at the end there are the lower value).
...
0
votes
0
answers
21
views
Compression of logical steps; multiple logical steps squeezed into one logical jump
I have read somewhere that as intelligence increases, more and more logical steps are chunked together, so as to allow for greater logical jumps.
When doing mathematics, the different levels of "...
2
votes
0
answers
50
views
Has neuroscience yet proved that antisocial humans think in terms of anything resembling moral circuitry when targeting their victims? [closed]
Popular philosopher Frederich Wilhelm Nietzsche hypothesized and theorized that there are two core languages of moralities, rather than 'morality'. These languages are the master morality, and the ...
5
votes
1
answer
195
views
Lunar cycles linked with mental health issues?
From what I can find...
Anecdotally, my mother used to work in nursing homes for the elderly and found that around the full moon, patients slept less and were more agitated.
Anecdotal evidence ...
0
votes
0
answers
49
views
Doubt about diffused mode
Is the diffuse mode (the default mode network) basically mind wandering mode(daydreaming mode) recruits neurons within the prefrontal cortex in addition to the cingulate, joining them to the ...
9
votes
0
answers
872
views
Is the symbolic meaning of dark/black and light/white innate in humans?
Dark/black and light/white have symbolic meanings(1, 2). Dark/black represents, among others: Grief, evil, mystery (often with hidden threats), lack of knowledge, etc. Light/white represtents, among ...
3
votes
1
answer
2k
views
How many possible states does a brain have?
Suppose I have a box, inside of which is a light which can be either on or off: it has exactly two states.
Suppose I wanted to take some "snapshot" of the state of this device, and store all the ...
6
votes
2
answers
306
views
Is meaning-seeking behavior a biological optimization problem?
In short, I'm interested in cognitive, neuroscientific, biological and/or computational perspectives on what we vaguely refer to as meaning seeking. Of course, this is a large topic, but any ...