For questions regarding specific structures in the central and peripheral nervous systems

learn more… | top users | synonyms

3
votes
0answers
9 views

Comparative functional neuroanatomy: humans & octopodes

Cephalopod brains are toroidal (high surface area to volume ratios!), with the esophagus passing through the, uh, donut hole; octopodes are very intelligent, particularly spatially. Where can I find ...
8
votes
1answer
57 views

What is the meaning of “little efferent input” to retina?

Gollisch & Meister (2010) state that "the retina receives little efferent input from the brain" (p. 157). Could anyone describe what exactly this "little efferent input" (where it originates, ...
2
votes
0answers
25 views

Are there some tools to get human brain Brodmann areas from X,Y,Z coordinates?

Is there some program that given the x,y,z coordinates of a area in a given brain template, gives the histological Brodmann area relative to that template? I'm interested in associating x,y,z ...
0
votes
3answers
117 views

Where is knowledge of how the brain works stored?

If we are our brains, and our brains know how they work, this means that this information is stored somewhere in the brain, like the inferior temporal cortex is the part of the brain that recognizes ...
2
votes
1answer
94 views

How many synapses in the average human brain?

Knowing there are 100,000,000,000 neurons in an average human brain, and 7,000 dendrites in each neuron, and neurons are connected to each other by dendrites and axon terminals, how many synapses are ...
2
votes
1answer
49 views

What was the quantified brain volume of Albert Einstein?

I have read articles stating that Albert Einstein had an average brain volume but couldn't find a specific measurement. I'm curious because the articles are all so ambiguous. He could have been on the ...
4
votes
1answer
100 views

What keeps the cerebrospinal fluid circulating? Is it pumped by something?

What keeps the cerebrospinal fluid circulating? Is it pumped by something? This picture from wikipedia seems to indicate that it pulsates as though it is pumped:
9
votes
2answers
281 views

Folding (wrinkles) in cortex: Why is surface area more important than volume?

When we look at the cortex of the brain, it has a folded structure. It is said that this is because this enables a greater number of neurons to exist, which is obviously advantageous. However, we ...
1
vote
2answers
33 views

What would happen if we cut the corpus callosum?

How would a two-halved brain work? If it would, could we still control things like motion, and would hearing, vision, and other senses still function?
7
votes
1answer
74 views

What can be inferred about the strength of the synapse from an electron microscope image?

In the following EM image (1um scale), there are several synapses: Image or HD Version What information about the synaptic strengths can be extracted from this image? Does vesicle count contain ...
3
votes
0answers
54 views

What brain regions are activated when a dream is remembered?

Some people remember dreams, others don't. The same person can wake up with dream recall one day and without on other days. I know that the association between REM sleep and dreaming was initially ...
1
vote
0answers
29 views

What are the effects of antipsychotic medication on brain volume?

I have read numerous different papers each claiming that antipsychotic medication either helps maintain brain volume or causes brain volume reduction in patients with schizophrenia and other psychotic ...
3
votes
1answer
76 views

What is the purpose of hemispheric specialisation in the brain?

What is the benefit or purpose of having different hemispheres of the brain contribute more to different cognitive processes?
1
vote
2answers
154 views

What does dorso, ventro, and orbital mean in prefrontal cortext?

The prefrontal cortex has 3 parts: Dorso prefrontal cortex Ventro prefortal cortex Orbital prefrontal cortex What does dorso, and ventro mean? I thought orbital means back?
7
votes
3answers
296 views

Non coitus sexual activity and the brain

Most animals will only engage in sexual activity that can result in reproduction. There are some exceptions; Bonobos, for instance, engage in a lot of sexual activity that does not involve coitus. ...
7
votes
2answers
107 views

Which are the multisensory brain areas?

What would be an example of a multisensory brain area, where multiple senses (e.g. smell and taste) are combined to decode the corresponding stimuli from more than one sensory organ? I was thinking ...
2
votes
1answer
162 views

Does every human brain have the same shape?

Apart from the general structure (6 layer cortex, same areas, etc.) does every brain have the exact same number and arrangement of sulci, gyri, etc? Do these elements have the same shape?
8
votes
1answer
138 views

Fusiform Face Area (FFA) for within class recognition?

Is there any evidence (papers, studies, etc) that the Fusiform Face Area is used for any other type of recognition besides facial recognition? I remember hearing or reading a long time ago that ...
5
votes
3answers
2k views

Training for the corpus callosum?

Since reading is done in the left hemisphere of the brain, does reading text in the left visual field train the corpus callosum? For instance, I am interested in knowing whether training may lead to ...