For questions about the biology of the nervous system, from a macroscopic to microscopic perspective.

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266 views

Where do our memories get stored and how are they retrieved again?

There is a common knowledge that several brain areas are involved in memory processes and each area is involved in a different aspect of memory. But where do our memories get stored and how are they ...
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1answer
132 views

Where do our memories get stored and how are they retrieved again? [closed]

In one of Karl Lashley's 1950 papers, it is pointed out that information is not stored locally in certain area of the brain. Instead, it's stored distributively over the structure of the brain. I'm ...
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1answer
662 views

Do people feel emotions less strongly as they grow older? [closed]

I'm specifically interested in whether or not their maximum ability to feel an emotion decreases as they grow older (so by that I'm meaning - let's ignore the effects of tolerance induced by life ...
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2answers
40 views

What causes dopamine in our body [closed]

I was curious as to know what are the natural causes for the secretion of dopamine in our body. Are there any specific foods that increases the dopamine level? It is said that dopamine are usually ...
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1answer
73 views

Does an action potential abolish an excitatory postsynaptic potential?

From some sources, I've read that excitatory postsynaptic potentials (EPSPs) decay over time, which would imply that they aren't abolished by action potentials. However, other sources seem to indicate ...
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1answer
272 views

How much power, in watts, does the brain use?

When IBM's Watson won on Jeopardy a few years ago, it did so using a room full of servers with a cooling system and a fat power feed, competing against a couple of humans powered by the equivalent of ...
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1answer
147 views

Importance of Neural Synchrony to Cognition

Is there a consensus on whether computation using Neural Synchrony is reasonable or not? In "How to Build a Brain", Chris Eliasmisth cites Yuko Munakata and R. C. O'Reilly as saying that "the ...
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2answers
186 views

How do neurons decide how to alter their output signals?

In computer science, neural networks are trained using backpropagation and other methods. Backpropagation heavily relies on mathematical formulas to describe how the weights should be changed ...
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1answer
738 views

How can motivation be increased by improving brain chemistry with nutrition and activities?

I'm reading some material about motivation and brain chemistry. One of the interesting articles is "7 Ways to Increase Motivation by Improving your Brain Chemistry". I'm interested in a more ...
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1answer
187 views

What causes lack of energy? The relative importance of testosterone versus emotional, genetic, and environmental factors

Some people assume that males lack of energy because of low testosterone. I would think that lack of energy could be due to esteem levels, emotional abuse, low self-worth, and even genetics to some ...
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1answer
39 views

Can one neuron spike inhibit and excite at the same time?

Is it possible to have a neuron that in some synapses releases inhibitory neurotransmitters and excitatory in others (everything triggered by the same spike) ?
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1answer
99 views

Are connections in the human brain directed?

Do connections in our brain have a direction, or do they behave equally in both directions? I am especially interested in the structures responsible for memory.
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1answer
171 views

How does the brain learn abstract maths?

I have found quite a bit of information of how, on a neurological level, we learn the most basic forms of maths. We seem to be hardwired from the get go, to deal with manageable quantities, can ...
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2answers
107 views

How many action potentials from presynaptic neurons would be required to make a postsynaptic neuron fire?

I am looking for a rough estimation of the number of action potentials from other neurons required to cause a neuron to fire? I read here that a potential of ~ -55mv must be reached before an action ...
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0answers
33 views

How can we analyse user behavior to predict urge of smoking?

The problem which I want to target is to be able to successfully predict (to a degree) that a person is going to smoke in near future. I want to look at the relationship between chemical reactions ...
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0answers
126 views

Is Brain Sync music effective in increasing cognitive functioning? [duplicate]

From the website: BRAIN SYNC meditation CDs and guided imagery techniques are proven to significantly improve mental performance. In two decades, nearly 3 million Brain Sync users have ...
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0answers
36 views

Which hormones are known to cause which psychological effects? [closed]

This might be a very broad question, but I'm looking for gathering a list of any hormone that can cause psychological effects - especially long-term. I would like to build a list of psychological ...
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1answer
47 views

Is the heart conscious?

I have read that our heart can think like our brain. Of course it doesn't have complete functionality of brain but it has its own consciousness. Is it true?
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1answer
229 views

How many calories do we burn when we try to understand mathematical proofs?

While thinking we burn calories. For comparison: "And if it’s the right wood and the right chess grand masters in the middle of a tournament, they are going through 6,000 to 7,000 calories a day ...
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1answer
31 views

Benefits of using more complicated neuron models in NEF models

The NEF allows you to use almost any neuron model as long as it has an equation for it's activity and it's spikes in some way. Usually, a simple leaky-integrate-fire (LIF) neuron model is used, but ...
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2answers
33 views

Neurons - Which Types, How much Inputs/Outputs?

I plan to build a neural network that is as near as possible to a biological one. So I have 2 questions regarding properties of neurons in the brain and their types: What types are there and where ...
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1answer
17 views

Neurons - Firing-Rate and Task? [closed]

I plan to build a neural network that is as near as possible to a biological one. So I have 2 questions regarding properties of neurons in the brain and their types: What is the firing rate (average)...