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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5
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2answers
349 views

Can LSD connect sensory regions in the brain?

How is it possible that after using LSD you can hear sounds and see colours? I have my own experience with this phenomenon. When I´m lying totally relaxed in bed and suddenly a door is closed loudly,...
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1answer
135 views

If I think of a checkerboard, is there a similar structure to see in my visual cortex?

When I´m imagining a checkerboard in my mind, can one find, with all kinds of fancy equipment, a corresponding figure in the area of my visual cortex? For example, the neurons firing in such a way as ...
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1answer
189 views

Is there a scientific opinion about the connection between Asperger Syndrome and AD(H)D?

I have Aspergers and ADD. When I read autobiographies (most of all by female aspergers) I often think that they have actually at least a mild form of ADD or ADHD, too. A German doctor (Dr. Helga ...
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0answers
60 views

Is it known how the brain corrects the world-up-side-down-view of our eyes? [duplicate]

Because of our eye functioning as a camera obscura the light entering our pupils is hitting the retina of the eye in opposite directions. So what is left becomes right and right left and above becomes ...
4
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1answer
102 views

Why do hallucinations appear in depression?

We all know the stories of people who saw a miracle in the deepist troubles like gangsters who turned to faith - or an older example could be the miracles in jail in the Bible (Acts: Peter and Paul). ...
3
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1answer
1k views

LAURA/LORETA source localization in Matlab

Is there a Matlab toolbox for doing source localization using LAURA or sLORETA within Matlab (not requiring additional software like LORETA-KEY, etc.)?
7
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4answers
347 views

Can humans be reduced to a function?

Based on an article by UK Essays, we are nothing more than robots that operate based on our past experience and other factors like amount of neurotransmitters, hormones, and other chemicals, trying to ...
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1answer
117 views

Can the desire to change a romantic partner ever be satisfied?

Based on the typical relationship advise: "Don't try to change your partner" and such, I would say that many people want to see their romantic partners behaving just a little bit differently. It is a ...
6
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0answers
953 views

Does testosterone level cause more sexual dream content?

I have long been interested in dreaming, including how dream content can shed some light on brain chemistry. I did a search on the subject of testosterone levels altering dream content and see some ...
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1answer
35 views

I need good introductory texts/publications on brain networks and functional integration/segregation

I am a soon to be graduating applied mathematician interviewing for a research position soon in a lab considered with neurological imaging and association of brain networks with things like aging, ...
5
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3answers
118 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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0answers
76 views

Is it possible that human behavior cannot be formalized as an optimization problem?

It is common to explain humans behavior by having the brain follow a certain objective function, that may have been formed through evolution. Given the objective function and infinite computing ...
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0answers
30 views

What cognitive architectures out there combine multiple sensor streams?

It seems like most cognitive architectures are evaluated on toy problems that do not challenge more than one sense (usually the visual one). What neuronal cognitive architectures were evaluated in the ...
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2answers
231 views

Can electromagnetic fields be used to stimulate areas of the brain?

Recently I've come across an article from a questionable source called 10 Things An Electromagnetic Field Can Do To Your Brain. There are a lot of hints in this article that the writer doesn't have ...
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1answer
79 views

Does neuroplasticity cancel the notion of “aptitudes” as a natural gift? [closed]

Considering the definition of neuroplasticity as the capability of our brain to rewire itself by forming new neural connections throughout the life, it seems to me that our brain is like a ...
5
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2answers
251 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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2answers
95 views

Is the amount of learning modulated by reward transmitters?

The human brain is a signal processing system. Input streams contain sensory, motor, reward and possibly more signals mixed. I wonder if neuro transmitters associated with reward increase or decrease ...
8
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2answers
529 views

Do you know any good tutorial on designing EEG experiments with PsychoPy?

I'm trying to find good documentation on using PsychoPy to measure Event-Related Potentials. In particular, I want to measure and compare the amplitude of the N170, a face-sensitive ERP, when ...
3
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1answer
94 views

Can habits be implemented by playing mental scenarios or playing things in your head?

A significant amount of people say that you need to do things over and over again to implement a habit into your subconscious mind where you no longer have to think to do it. If, let's say, I want to ...
2
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3answers
652 views

How can a persons good or bad be accurately measured?

The majority of people who think certain people are bad people are usually because they have been exposed to the bad things they do or also because they measure how bad they are based on only the bad ...
4
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2answers
143 views

Introduction or Tutorial on Continuous EEG Collection Procedures and Initial Processing?

Are there any tutorials or introductions (specifically not slides from talks) on the very basic details of EEG data collection and processing? Things like: Discussions of reference systems (montages) ...
2
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0answers
70 views

Influence of LIP on visual cortex

I understand that the lateral intraparietal cortex (LIP) maps various features of targets onto an eye-centric reference frame. I also know that this mapping predicts where visual attention (in the ...
5
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2answers
437 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?
4
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1answer
1k views

Can music be addictive?

As playing games for a prolonged period, tend to develop a addictive behavior in humans, Is there any possibility for addiction to music? I.e., when a person listens to certain list of songs and gets ...
8
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1answer
4k views

Why do people love nature?

I wonder why we feel happy and comfortable when seeing the view of trees, green plants and flowers. Why do we admire sea, waves, fishes inside pure water and sun set? why do we love seeing the view of ...
1
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1answer
411 views

How can I make a speller with BCI?

I am trying to make a speller with BCI using EEG (SSVEP or P300, whichever is easier). I would be really grateful if someone could give me a plan of action so as to where do I get started and what ...
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2answers
3k views

how to see prefrontal cortex is functioning well by a test?

Is there a test to see if the Prefrontal cortex of someone works normally? especially a simple test like a questionnaire that you give the individuals to fill out and based on their answer you obtain ...
1
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1answer
43 views

Do gating mechanisms in the neocortex have individual degrees for all gated connections?

For example, the upward connection between layers in the neocortex flows through the thalamus which is assumed to have a gating function. I wonder whether there is a single value per gate, ...
5
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1answer
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 ...
6
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1answer
88 views

Valence conveyed in simple geometric shapes

I've seen neuroscience and facial recognition studies that give evidence for this idea of simple geometric shapes causing emotional responses or quicker recognition of negative affect. Are there ...
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0answers
144 views

Reciting Reverse Order Alphabet vs Reverse Order Counting

Observation A: It's easy to recite the alphabet. It's hard to recite the alphabet backwards. Observation B: It's easy to recite the number 1 to 26. It's easy to recite the number 1 to 26 backwards. ...
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1answer
182 views

How do neuro transmitters interact with neurons in the brain?

I think emotions and hormones frames the overall thinking processes of the brain. However, I'm interested in how this works on a neuronal level. For example, dopamine is some kind of reward signal for ...
2
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2answers
84 views

How are positions and counts of higher concepts encoded in sparse representations?

I understand that levels in the sensorimotor hierarchy of the brain learn recurring features of their input streams. The results are activation patterns with single neurons firing for the existence of ...
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2answers
120 views

Conducting brain stimulation at home

Given articles like this, and their associated research {1}, I am developing an interest in transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS), and other forms of ...
4
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1answer
75 views

What is known about the information that's passed upwards within the neocortex?

The neocortex is likely to process sparse representations in a hierarchy with information close to the raw sensor input appearing in lower levels and abstract concepts being appearing in higher levels....
4
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2answers
139 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 ...
7
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0answers
5k views

Why does learning new mental skills lead to headaches?

Why is deliberate practice uncomfortable? For example, during learning college math and playing the piano. Why do we get headaches after long hours of practice? According to this question, learning ...
4
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0answers
69 views

Does exercise substantially affect bloodflow to brain

The benefits of exercise on the psyche are well documented, encompassing catharsis, endorphin release, mental health improvements and self esteem. There is also evidence that it increases cognitive ...
3
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1answer
138 views

How can neuronal networks with local learning rules predict their future inputs?

Local learning rules like Contrastive Hebbian Learning, XCAL, etc. are based on the idea of strengthening edges when the neurons they connect fire simultaneously. This causes frequent patterns in the ...
7
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1answer
144 views

Increasing pitch perception of the same auditory stimuli

I was trying to work up a small clip of repeating beep sounds I recorded from a mobile game. This series of sounds, when played, gave an unmistakable perception of increasing pitch with every ...
8
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3answers
458 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 ...
2
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0answers
32 views

Is there a disorder that causes one to feel heat from an inanimate object? [closed]

We just met a woman that feels heat (literally, hot enough for her to say she was burned) from inanimate objects. She says it is mainly the floors and chairs in her home, and she is unable to walk in ...
0
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1answer
77 views

What is the current status of neuroeducation? [closed]

How can we apply the cognitive neuroscience in the classroom? What is a good general reference discussing the current status of neuroeducation?
2
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2answers
273 views

How useful are neural circuits in psychology?

We can identify many kinds of patterns of how neurons connect such as lateral inhibition, negative/positive feedback, convergence, divergence, and facilitation. But have any of these circuits been ...
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2answers
128 views

Cognitive Techniques to train Working Memory?

What are some practical techniques/methods which can be used to train/improve your working memory and what studies have been done on this subject?
2
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4answers
5k views

Is it possible to increase the capacity of human brain like “Lucy”?

I saw the film "Lucy" in 2015. The film says that humans can use 100% percent of the capacity of their brains. According to my personal ideas, the capacity of the brain will changed based on the ...
8
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3answers
189 views

How do I choose what I think?

Where do my thoughts come from? What allows me to choose them at all? Regardless of whether free will is an illusion or not, what makes a thought happen? (This is a mix of a philosophical question and ...
2
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1answer
666 views

Why is it that some (yet not all) people may struggle to retain information unrelated to what they are interested in?

It seems to me that some people find it difficult to retain information that is not naturally salient to them. This isn't the case for all people, however. There exist people that will put in the ...
2
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2answers
131 views

Possibility of increasing brain speed

In science fiction stories, we often see the use of virtual reality, a 3d world that allows you to actually 'be' there. The writers often use a pod or helmet to signify the use of some sort of ...
3
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2answers
131 views

Neural nets for cognition

I recently got into Neural networks. As much as I have understood, the learning process is based on the change in weights according to stimulus and algorithm used in learning. Does this in any way ...

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