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/sci/ - Science & Math

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1826133 No.1826133 [Reply] [Original]

I have time to kill, ask me questions about neuroscience.

>> No.1826137

OP here; Forgot my tripcode.

>> No.1826163

bump

>> No.1826178
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1826178

>> No.1826177

>>1826133

biofag here.. are there any good intro books to the subject you could recommend

>> No.1826185

>>1826177
sure, try:
"Neuroscience" by Bear, Connors & Paradiso,
"Principles of Neural Science" by Kandell, Swartz & Jessell
"Cogntive Neuroscience" By Gazzaniga Ivry & Mangun

>> No.1826187

>>1826185
>Kandell
Kandel*

>> No.1826193

Does 1,3 dimethylamylamine cross the B-BB?

>> No.1826194
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1826194

>>1826178

>> No.1826196

is it possible to temporary lose consciousness by impact on the head and then be unable to recall certain events?

i ask because i got involved in a car crash, was drunk, ran away, and i want to get out of it somehow.

>> No.1826199

>>1826193
Yeah it does

>>1826194
lol, that was my thread

>> No.1826202

>>1826199
>>1826199
What does it inhibit the release of, and increase?

>> No.1826208

>>1826196
Head trauma can result in retrograde amnesia, meaning there is a gradient in memories that are lost, with the most recent memories being the most susceptible to loss.

That said, I think you are an asshole and should face the consequences of your actions.

>> No.1826219

>>1826202
I don't know exactly, I'm not too familiar with this substance. I know that it's used as a partydrug and is a stimulant so it probably has effects similar to amphetamines and might act as a dopamine agonist.

>> No.1826229

What does that picture show?

>> No.1826232

>>1826229
It's a schematic representation of deep brain stimulation treatment. Judging by the location it's probably for Parkinson's. The idea is that an are that's overactive (the subthalamic nucleus) due to cell death in another brain area is stimulated to tetanus so that it effectively becomes less active.

>> No.1826244
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1826244

>> No.1826243

Is intelligence actually well defined and quite measurable, or do people have a valid point when they say that there are different types of intelligence.

>> No.1826247

>>1826199

That was you? I loved that thread, and still tell those stories, yours being one of the best, to friends.

Anyway, my question. How exactly are memories formed? Are they stored in constant chemical reactions, almost like a computer stores information, or does a physical change happen as well?

>> No.1826251

OP why is every pseudo-intellectual a neuroscience major their freshman year?

>> No.1826254

>>1826243
There are arguments for both sides. The idea is that there are different aspects of intelligence that are all influenced by some underlying factor. This notion is supported by the positive manifold, a strong correlation between different aspects of standardized IQ tests. The individual aspects are well measurable, but the problem is to what extend they should be weighed. Some test put the emphasis on working memory capacity for instance and others value reasoning more strongly. This balancing of factors in is a sense arbitrary and there is no direct way of determining which is correct. That doesn't mean that the entire idea as IQ as a measure of intelligence is useless though.

>> No.1826265

>>1826247
>That was you? I loved that thread, and still tell those stories, yours being one of the best, to friends.
Thanks
>Anyway, my question. How exactly are memories formed? Are they stored in constant chemical reactions, almost like a computer stores information, or does a physical change happen as well?
The dominant hypothesis is that the main mechanism for memory formation is synaptic plasticity. A memory is in essence a set of connections between brain areas that were involved in the initial perception of the event. Those brain areas are first connected through a structure called the hippocampus but as consolidation progresses become less dependent on it and connections between those areas form directly.

>> No.1826271

>>1826251
I don't know, are they?

>> No.1826286
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1826286

>>1826247
>mfw actual email address in e-mail field

>> No.1826294
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1826294

Concerning electroencephalographic oscillatory activity dynamics, how can we distinguish between multiple cortical generators or a single deep (e.g. thalamic) source?

>> No.1826305

>>1826294
Good question, lol.

You can do a current source density transform by subtracting the shared activity due to volume conduction from each electrode with their surrounding electrodes. That way you isolate cortical activity. You can also do a source localization with sLORETA for instance.

>> No.1826313

>>1826294
lol'd

>> No.1826318

a) does white matter undergo pruning in a 'use it or lose it' way?
b) do you know what the inferior longitudinal fasciculus is used in other than facial prosopagnosia and language (potentially)

>> No.1826338

I'm just a stoner dude college drop out but I loke science and stuff. can I be neuroscientist somehow? how?

>> No.1826341

>>1826318
a) Gray matter does, white matter doesn't in itself because white matter is just axons. If a neuron doesn't project anywhere the neuron dies (including the axon) but most pruning is done in the gray matter because individual synapses can be pruned.
b) It's a connection between the oscippital and temporal lobe. It's part of the "what" pathway in visual identification I believe.

>> No.1826347

>>1826338
Get back in college and work your ass off for 5 years to get a degree, than work your ass off the rest of your life doing science.

>> No.1826367

bump

>> No.1826377

I have to leave in exactly 7 minutes so get your questions in if you want an answer.

>> No.1826389

>>1826341
thanks man, its a bit to ask, but you don't seem terribly busy so (if possible) could you explain white matter plasticity in 100ish words? I understand synaptic plasticity with memory, but but cant seem to find good links on white matter (principles of neural science and encyclopedia of the human brain don't seem to mention it[from quick skimming]). Any other good reference textbooks like those you know of as well?
thanks man, oh, also, where did you study?

>> No.1826405

>>1826389
Sorry bro, I have to go.

This is a good starting point to start reading:
http://en.wikipedia.org/wiki/Growth_cone

Also, check out pages 1070–1074 in Kandel
and:
http://www.cell.com/biophysj/abstract/S0006-3495%2808%2970514-9

http://www.ncbi.nlm.nih.gov/pubmed/14556705

>> No.1826407

>>1826405
Studied at the university of amsterdam btw, I work there now

>> No.1826415

>>1826407
legend, this being sci the thread will probably be up for days, I'll bookmark it cos you seem like a cool guy and I have a shitton of questions

>> No.1826451

>>1826347
>>1826347
>>1826347
>>1826347
uuh, k. THANKS DUDE! :D

>> No.1826530

Why are men generally smarter than women? Grey matter?

>> No.1826549

>could you explain white matter plasticity in 100ish words?
>Can you do my homework, OP?

>> No.1826808

i did around 150 rolls over a period of three months about 5 months ago. ive noticed my driving skills have deteriorated recently. am i imagining things or could this have been caused by the e?

>> No.1826824

OP,

neurofag here. lets have a neuro-off. you start

>> No.1826830

psychology isnt a real science

>> No.1826852

>>1826808
Holy fuck, 150 rolls in 90 days? Did you pop e like it was candy?

>> No.1826850

Do you believe working memory capacity to be relevant towards reasoning ability?

Why or why not?

>> No.1826849

>>1826286

Put it up there for a contact thread in /r9k/ and forgot to replace it. It's a throw-away email anyways, so feel free to spam it. Though I would appreciate humorous spam.

Neuroguy, what are your opinions (ethical, medical, practical, whatever), and the opinions of the experts you know, on the use of neuro-enhancing drugs for non-medical purposes? For example, college students using amphetamines to cram for tests?

>> No.1826858

>>1826850

People without working memory can't reason. Long term memory isn't enough; you can only remember reason i.e not reasoning

>> No.1826866

>>1826858

Wanting a response from OP. Individuals with working memory impairments often don't have extreme deficits in reasoning ability, especially if the test doesn't have a very strict time limit.

A prime example would be those with ADHD.

>> No.1826875

ADHD has nothing to do with memory. It's debatable whether it even exists or not.

Working memory IS the memory that we reason with. It's basically the definition of working memory.

>> No.1826879

>>1826875

Those with ADHD have working memory impairments, well, not ALL of them. JUST about 86%.

This is generally diagnosed with n-back tasks and reverse digit span.

>> No.1826883

>>1826875

seems legit
wikipedia says

Working memory is the ability to actively hold information in the mind needed to do complex tasks such as reasoning, comprehension and learning

ADHD does exist because my brother has it and hes a faggot

>> No.1826885
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1826885

>>1826875

>he thinks there is a debate over whether or not ADHD exists

>he thinks those with ADHD don't have highly irregular EEG readings

>he's probably a tea partier

>> No.1826898

>>1826885

There is a school of thought that it is a bullshit 'disease' and the reality is that the symptoms are due to a number and variety of problems. ADHD is the easy way out and just another example of increasing labeling.

>Those with ADHD have irregular EEG readings
>Implying that 'those' actually have ADHD as opposed to an unidentified problem

>> No.1826907

>>1826898

I will agree with you there, it is more of a description than a specific disorder.

I thought you were implying that there were no relevant neurological abnormalities in play with those who exhibit ADHD symptoms.

>> No.1826914

ADHD and its diagnosis and treatment have been considered controversial since the 1970s.[17][19][207] The controversies have involved clinicians, teachers, policymakers, parents and the media. Opinions regarding ADHD range from not believing it exists at all to believing there are genetic and physiological bases for the condition as well as disagreement about the use of stimulant medications in treatment.[18][19][20] Most healthcare providers accept that ADHD is a genuine disorder with debate in the scientific community centering mainly around how it is diagnosed and treated.[21][22][23]


http://en.wikipedia.org/wiki/Attention-deficit_hyperactivity_disorder_controversies

>> No.1827854

OP here. I'll try to answer more questions tomorrow. Feel free to post them now and I'll look into them in more detail later. I'm going to bed now (It's late here).

But before I do; Yes ADHD is a real disorder. I really don't know why there is so much discussion about this here on /sci/.

Good night.

>> No.1827869

>>1827854

You never answered my question about working memory, you nigger lover.


>>1826850

>> No.1827872

Oh you heard it guys the trip fag said it, must be true

>> No.1827879

>>1827872

Radical conservative republican detected.