Questions tagged [brain]
Tag for questions regarding the brain. The brain is the portion of the central nervous system that is located within the skull. It functions as a primary receiver, organizer, and distributor of information for the body. It has a right half and a left half, each of which is called a hemisphere.
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Is the brain's network connected in the graph theoretic sense
In mathematics, a graph $G = (V, E)$ is connected if, given any pair of nodes $x, y$, there is a path $x\ldots y$.
The brain is of course an intractably large network and can be modeled with a ...
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Understanding Causal Relationship Between Variables In The Free Energy Principle
I have a question about the free energy principle, taken from Friston et al.'s paper A Free Energy Principle For The Brain:
$\begin{align}F&=-\int q(\theta)\ln\frac{p(\tilde y,\theta)}{q(\theta)}\...
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How to give rest to ones brain during the day?
I often work on/think about some kind of complicated problem until I realize my brain doesn’t yield the mental focus/concentration/working memory needed to make progress any more(, which sometimes ...
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What is the point of having two hemispheres if one works just as well?
Hemispherectomy is a surgical procedure employed to treat epilepsy where an entire hemisphere of the cortex is removed. Astonishingly, when it is performed on very young children, they are seemingly ...
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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 ...
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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 ...
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Non-salience memories? [duplicate]
It is said that memories that are significant are remembered much more clearly due to salience. Yet, let us imagine a man named Fred. Fred does not have hyperthymesia as he forgets things like ...
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automated co-registration of PET CT
Hi all:) I've acquired Whole body PET CT data from form which I would like to generate brain co-registered PET and CT nifti files - has anyone implemented something similar? I have experience with ...
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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 ...
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Which statistical analysis test to perform to find the difference in connectivity between regions of Default Mode Network?
I have three groups each with 30 participants. I have 30 binary adjacency/connectivity matrix for each group which represents the connectivity between regions of Default Mode Network . I want to find ...
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How to calculate latency between two different brain region in Steinmetz dataset?
I am new to Computational Neuroscience and recently, I came across to Steinmetz dataset and looking into the dataset, I had an idea of calculating the latency between two brain regions in terms of ...
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What are the brain chemicals associated with food cravings? Possible to treat it by manipulating brain chemicals?
It is frequently mentioned that physical factors such as hormonal imbalances have an impact on brain chemicals, especially when it comes to food cravings (source). What are the brain chemicals ...
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Could a superintelligent spider be more human like than a normal spider? (or any other animal) [closed]
From a text (1) about AI and, in particular, ASI (Artificial Superintelligence)
A guinea pig is a mammal and on some biological level, I feel a connection to it—but a spider is an insect, with an ...
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Why didn't the animal/human brain evolve to being able to create a comprehensive map of the environment?
I am just wondering about this.
I am a computer science student, and I have been looking into the SLAM (Simultaneous Localization and Mapping) problem. The problem is that you want to both create a ...
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What are the biological reasons for hearing loss?
I recently stumbled upon an interesting online hearing test on YouTube, and it got me thinking about the root causes of hearing loss. I'm curious about the main contributing factors behind the loss of ...
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