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3 answers
5 votes
121 views
Is it possible to quantify/measure the effect of certain medication on our neurotransmitters and hormones?
3 votes

Yes it is possible, but it is difficult. The way it would be done currently is to insert a needle into the base of your spinal cord to measure the concentration of a metabolite of serotonin, 5-HIAA, ...

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1 answers
0 votes
45 views
Is this expected to happen while asleep?
2 votes

The appropriate answer is that dreams are generally not in any way diagnostic of a health issue. Being able to read while dreaming is absolutely not diagnostic. I can't imagine that any reputable ...

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1 answers
10 votes
3k views
Is there a way to make a DIY EEG?
Accepted answer
12 votes

The OpenEEG project has some information for building your own EEG system. Instructables has a "simple" EEG circuit you can build. Note that this is going to be somewhat costly and time consuming ...

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1 answers
6 votes
171 views
If I think of a checkerboard, is there a similar structure to see in my visual cortex?
Accepted answer
9 votes

Probably. What you mentioned in your question is called retinotopy. There is a mapping between locations on your retina and areas on your cortex. As you go further up the visual processing streams, ...

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2 answers
3 votes
922 views
Is it possible for a person to have anterograde amnesia and be aware of it?
Accepted answer
6 votes

Yes it is possible. It is very common for normal individuals to feel like they should remember something, but are then unable to actually recall the contents of that particular memory. This feeling of ...

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1 answers
4 votes
43 views
Insensitivity of MEG to inhomogeneous conductivity
2 votes

MEG measures magnetic fields and EEG measures electrical potentials. One property of magnetic fields is that organic matter (scalp, skull, and brain) does not block them in any significant way. ...

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5 answers
45 votes
53k views
Why would the brain flip the images perceived by your eyes?
3 votes

There are many transformations between the light hitting your retina and your perception of the world. The signals from your retina initially travel through the visual pathways to reach your visual ...

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1 answers
5 votes
372 views
In what order do you preprocess EEG data?
Accepted answer
4 votes

You kind of have to do some kind of baseline correction first (or a highpass filter on the unepoched data) because of slow drifting. Lowpass filtering before artifact rejection is fine as long as you ...

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2 answers
12 votes
13k views
Which neurotransmitters can be measured in a living human brain?
0 votes

MRI Spectroscopy is another method for measuring neurotransmitters in the living human brain. Here are some examples: Dopamine Reduction in the Substantia Nigra of Parkinson's Disease Patients ...

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2 answers
3 votes
65 views
Is there a term for a measure in which an extremely high or low score is considered bad?
1 votes

I think Inverted U is what you're looking for. The specific example given by Wikipedia is the Yerkes–Dodson law, which essentially states that arousal levels that are too high and too low have ...

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1 answers
2 votes
250 views
what is the "trial-averaged neural response function"?
3 votes

ρ(t) in Equation 1.1 cannot be summed and averaged because the idealized spikes are infinitesimally narrow and the chance of two spikes from different trials occurring at the same time t is zero. In ...

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2 answers
6 votes
4k views
In a forced-choice task, what proportion of responses is above chance level?
3 votes

This is a binomial distribution and the answer depends on the total number of Type A and B questions as well as what confidence level you want to use for the cutoff. There is probably a formula for ...

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4 answers
3 votes
158 views
What are the rules that govern neuron behavior?
1 votes

Those are very simplified rules which are decent enough for simple neural networks but real neurons in the brain are a lot more complicated. See this paper for some ways that an axon can play a role ...

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1 answers
1 votes
548 views
How can I make a speller with BCI?
1 votes

Yeah this is a very common and effective approach. Try doing a google search for: P300 speller github for some implementations. One issue that you should pay attention to is the limited refresh rate ...

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1 answers
2 votes
162 views
Why do we say that some animals have consciousness and some don't?
1 votes

This reminds me of a similar question I answered a few weeks ago. Not exactly the same situation, but the leading theory is that it comes down to complexity. I'll start out by saying that we don't ...

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2 answers
0 votes
4k views
how to see prefrontal cortex is functioning well by a test?
0 votes

This article might interest you. It discusses some of the anatomy, functions, and neuropsychological tests related to the prefrontal cortex (PFC). The prefrontal cortex (PFC) is a relatively big area ...

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1 answers
1 votes
191 views
Is the heart conscious?
2 votes

The general consensus of the scientific community would be that the human heart is not capable of consciousness. The machinery behind consciousness is not well understood, of course, and there is ...

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2 answers
0 votes
102 views
Where is motor skill function located within the brain?
1 votes

Most brain-machine interfaces involving movement would be based on activity in primary motor cortex, which, as you said, is near the surface. Right next to that are is primary somatosensory cortex, ...

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1 answers
6 votes
192 views
Can suggestion change memories?
Accepted answer
11 votes

The answer to your question is yes, our memories are very malleable. Look into the research of Elizabeth Loftus. She is kind of the pioneer on this topic and has done a ton of research into false ...

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2 answers
11 votes
580 views
What computerized EEG analysis algorithms are there?
3 votes

Also FieldTrip for Matlab, and MNE for Python

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1 answers
2 votes
844 views
How large is a neurotransmitter? Max and min sizes?
3 votes

From the textbook Neuroscience. 2nd edition: Neuropeptides are relatively large transmitter molecules composed of 3 to 36 amino acids Individual amino acids, such as glutamate and GABA, as well as ...

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2 answers
7 votes
1k views
EEG correlates of handedness
0 votes

Propper RE, et al. 2012. Asymmetry in Resting Alpha Activity: Effects of Handedness The authors found differences in resting state alpha power depending on degree of handedness. ABSTRACT ...

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2 answers
0 votes
107 views
Text-to-brain literature?
2 votes

We don't have a well tested or accepted model of how specific items are encoded in the cortex, so text to brain is still far off. However, it is possible to send information to the brain. Ramirez et ...

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2 answers
2 votes
1k views
How to install MARSBAR toolbox in SPM12?
0 votes

Try inserting the lines: which marmoire pause into marsbar just before Line 125. This would help you verify for sure that marmoire is on the path when that line is being called.

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1 answers
2 votes
62 views
What are the estimates in total neurons and average connections per neuron for each of the processing areas of the visual cortex?
2 votes

I found a table listing the relative volumes of 39 different BAs in the supplementary material of: Hazlett, Erin A. et al. "Cortical Gray and White Matter Volume in Unmedicated Schizotypal and ...

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2 answers
2 votes
223 views
Which part of the brain is not working optimally if an individual is unable to understand scientific concepts and mathematics?
3 votes

Almost every area of your brain would be involved in learning and understanding such high-level topics, so any perceived inability to learn a specific topic is very unlikely to be due to a particular ...

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