The study of the structure and function of the nervous system and its components.

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Does sexual arousal inhibit functions of prefrontal cortex in human females as well as males?

I've read somewhere, that when a human male experiences sexual arousal, his prefrontal cortex and, hence, his ability to reason and make rational decisions, is being heavily inhibited. Sounds pretty ...
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63 views

Carrying or packaging capacity of SAD B19 dG rabies virus

I'm wondering about the carrying capacity also referred to packaging capacity or loading capacity (how many base pairs can be packed efficiently into virions) of the pseudotyped rabies virus SAD-dG as ...
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19 views

Which Receptors are involved in Psychedelia/Psychosis?

Which receptors are involved in Psychedelia/Psychosis? I know that the 5-HT2A, 5-HT3, D2, κ-opioid and NMDA receptors are likely involved in psychosis.
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52 views

The relationship between the currents of intracellular and extracellular ions of a cell

In a cell, assume that only sodium, potassium, chloride and calcium ions can cross the membrane and their currents are: $I_{Na}$, $I_{K}$, $I_{Cl}$ and $I_{Ca}$, across the whole membrane. There is ...
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55 views

Does Dorsal Raphe Nuclei firing pattern change in response to voluntary breathing?

I'm reading this paper, which discusses how Serotonin may be involved in motor functions of mammals: 5-HT and motor control: a hypothesis . The paper includes the following diagram of the Dorsal ...
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87 views

Does the Parasympathetic Tract of Colon Sigmoideum Travel with Nervus Vagus and its Nucleus Dorsalis Nervi Vagi?

I have the following tractus now: nucleus parasymphaticus sacrales -> nervus splanchnic -> ganglion terminalis -> colon sigmoideum The tract is parasympathetic. It suggests me that it should ...
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1answer
340 views

Does one neurotransmitter travel all the way through the nervous system?

Nerve impulses of course go really fast, but the neurotransmitters have to travel through millions of nerves, so how can it go that fast? Is it a sort of relay with lots of neurotransmitters taking ...
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1answer
266 views

Least painful way to die

There is a lot of talk about inhumane treatment of animals and how we don't kill them in the proper way. I wonder how much research is done on this subject. What is the overall least painful way for ...
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2answers
116 views

Chills down the spine with certain music?

I am sure many of us know the feeling of that tingling chill down our spines when listening to certain music. I experienced this most when my younger brother played an emotional piano piece for a ...
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1answer
42 views

What is accumulation and release centre of neurohormones?

What is accumulation and release centre of neurohormones? Is it hypothalamus?
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80 views

Systemic sensory confusion?

Sometimes when a person gets touched on one part of the body they feel it else where and may think it came from a different part of the body. What causes this? Other examples are similar to why you ...
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39 views

Can you disconnect sensation from the brain without destroying muscle functions?

I want to know if it would be possible for a surgeon to "shut off" a person's senses without causing paralysis of any kind. The person would have to maintain their ability to speak and move, but not ...
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90 views

Epinephrine vs. Adrenaline

Both names are widely used, with what appears to me as a slight prevalence of “epinephrine” in scientific literature and an overwhelming prevalence of “adrenaline” in popular media. Are there any ...
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17 views

Is the brain functionally symmetrical?

I understand that each half of the human brain handles different parts of our thinking. Left brain, right brain, that whole topic. But in pictures, the brain is always depicted as having symmetrical ...
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1answer
49 views

How do neurons send electric pulses even though they are surrounded by liquid which is mostly water?

I just thought about the fact that people move through electrical pulses traveling through neurons in the brain and muscles through the body. Here is what i know: the body is full of 97 or more, ...
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1answer
79 views

If inhibiting S6 kinase decreases protein translation, then could inhibiting S6 kinase could possibly slow down long-term potentiation in neurons?

From http://en.wikipedia.org/wiki/P70S6_kinase... Phosphorylation of S6 induces protein synthesis at the ribosome. P70S6 kinase is in a signaling pathway that includes mTOR (the mammalian ...
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8k views

How reversible is decerebrate posturing caused by brain stem damage?

This is a follow-up question to How likely would Abraham Lincoln be to survive his wounds today? You don't have to see a CT scan or autopsy to know if the brainstem is injured (directly or ...
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46 views

Whats the difference between voltage gated and ligand gated neurons? [closed]

How are they similar and how are they different?
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65 views

Is it possible to convert nerve signals or electrical activity into a readable format? [closed]

Can we have the technology to recreate the informations (like images, sounds etc.)[as in the form of signals in our mind] from human mind to human understandable format? In short, can we read human ...
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1answer
49 views

Mechanism of antiperistalsis

What is the mechanism of antiperistalsis that occurs during vomiting? Why the peristaltic waves normally don't propagate in anal to oral direction? Please give logical explanation with authentic ...
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1answer
62 views

M-type potassium channels by muscarinic receptors

How does the closure of M-type potassium channels by muscarinic receptors result in increased excitation of the target neuron?
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303 views

How different is an introverts brain different from an extroverts?

How is an introverts brain wired differently than an extroverts? Just to give you an example. On an average, the processing that goes on in an introverts brain is greater than in an extroverts ...
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21 views

MRI with lots of white matter.

Why might an MRI show a large amount of white matter and a low amount of gray matter yet have a full skull with little shrinkage in an above average intelligence primate?
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4 views

Frequency response of auditory system of the moth

This paper describes the dynamic behavior of moth auditory system. I was wondering at what frequencies range (roughly) does the moth auditory system produce little or no response to ultrasonic ...
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1answer
20 views

Can connections between neurons be weakened?

Connections between neurons are said (by Wikipedia) to be strengthened as part of learning - can they also be weakened (below the original level)? I understand the concept of the connections ...
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35 views

Are memories lateralized? [closed]

The left and the right hemispheres of the brain do not have perfectly symmetric functionality. For example, the left frontal lobe in most people processes language production whereas the right frontal ...
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11 views

Related to mood disorders and research? [closed]

I would like to get a direction on research topics related to mood disorders. Any suggestions on important papers related to it will be very helpful. Also I would like to know the current trends in ...
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23 views

Mechanisms of extracellular stimulation of neurons

When stimulating a group of neurons with an electrode, let's say we put it in a region that contains axons, what is the mechanism by which the axons are stimulated? I've been told electrodes ...
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41 views

How much information can a single neuron hold?

I'd like to know how much information (information that can be interpreted into thought by the brain) a single neuron can hold. I understand that memory allocation is a very complex and ...
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28 views

Is it possible to convert nerve signals or electrical pulses into a readable format? [duplicate]

Can we have the technology to recreate the informations (like images, sounds etc.)[as in the form of signals in our mind] from human mind to human understandable format? In short, can we read human ...
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0answers
20 views

Bipolar minus end directed molecular motor

like the title explains I am looking for a minus end directed bipolar molecular motor. Any ideas? Best wishes.
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27 views

Spinal cord injury bypass

When the spinal cord is damaged, the connection between the brain and some part of the body may be lost. To restore this connection, some research are carried out, with mainly two different goals : ...
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25 views

spinal cord lesion and result in somatic sensation

Jimbo suffers a lesion to the entire right half of the spinal cord at the T6 level. A few weeks after his injury, his doctor tests his right and left legs for somatic sensation and tone. fill out her ...
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38 views

What percentage of possible proteins has been tested by human brain evolution?

When the human human brain is discussed, I frequently hear an argument that goes like this "If there was a simple chemical solution for people to be smarter, nature would've already found it". I'm ...
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271 views

The process of how you visually perceive objects?

Use the following terms to describe in detail how you visually perceive an object that you can see right now. Use the terms in order to correctly describe the sequence of events involved in your ...
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23 views

Stress regulation in mosquitoes

I was just trying to understand how in insects, specifically mosquitoes does the process of emergency responding, stress regulation take place? Or in simpler words how are flight, fright and fight ...
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1answer
232 views

A good textbook on Neuroscience [closed]

I want to start learning Neuroscience. Can someone give me an advice about a nice textbook for beginners? I'm particularly interested in the application of Neuroscience in programming and AI ...
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3answers
73 views

Are there “multi-frequency” signals within a human brain?

I know that neurons can exhibit tonic and phasic firing, and also that a neuron is sometimes called an integrator. This makes me interested to know if there are activities in the brain that depend on ...