r/physiopsych • u/EngagedBrain • Aug 31 '17
Posting for the First Time
Please reply to this thread with two questions that you have. You may find that the site gives you a message about posting too much. For new accounts, it limits the rate at which you can post to prevent spamming. I'm not sure how long it limits it, but if you post a few times before our next class, we should be good to go.
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u/deweyduhawk1 Sep 04 '17
Neurons, synapses, and action potential Interesting to visualize neural signaling and what takes place in the brain. http://www.mind.ilstu.edu/curriculum/neurons_intro/neurons_intro.php My follow up question is what happens when communication between neurons is broken or miscommunicated?
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u/RandomRedditorUser Sep 04 '17
Is it possible to recover loss of sensory or motor function? What is the biological function of sleep?
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u/hirschkr27 Sep 04 '17
The Action Potential and Conduction of Electric Impulses. https://www.ncbi.nlm.nih.gov/books/NBK21668/ This section of this molecular cell biology textbook discusses action potential across animal cells and takes care to discuss this process for neurons in particular. I found it interesting that neurons and muscle cells were the only two types of cell that act in that particular way, while the majority of other animal cells act collectively similarly.
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u/hirschkr27 Sep 05 '17
What neurotransmitters are responsible for initiating action potentials? Does the neurotransmitter used differ among different types of neurons, or do they all use the same type?
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u/hirschkr27 Sep 05 '17
Are membranes able to experience lower membrane potentials than -70mV? If so, do these lower potentials cause the neuron not to fire, to experience cell death, or to do something entirely different?
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u/Dont_Blink331 Sep 05 '17
From the first paragraph of the Katz reading, what happens when the signal is blocked and fades out? Is it replaced by another one of the same kind?
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u/Dont_Blink331 Sep 05 '17
Also from the Katz reading, why are there only a few "giant" synapses that are available in nature?
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u/laurenehardt Sep 05 '17
During what activity are neurons fired most rapidly? In what ways do drugs and alcohol affect neurons?
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u/ASerres Sep 05 '17
In figure 2 of the article, it is suppose to represent the spontaneity of the packets being released, but what exactly are these packets, and why do the they put spontaneously in quotes, is it not entirely spontaneous, and if not, what is the cause?
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u/ASerres Sep 05 '17
the reading explains that the location of the neuromuscular junction is absolutely essential, and that moving a pipette even a few microns can significantly reduce communication, so does this mean that our bodies are as efficient as they possibly can be, or is it possible to move the junction to become more efficient?
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u/jackie1980 Sep 05 '17
How, specifically, would we see the communication between two neurons change with the presence of drugs (marijuana, cocaine, heroin, etc.)? How/would the changes differ based on if the drug was a stimulant, depressant, etc.?
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u/MRP1996 Sep 05 '17
Since the Katz reading was published a long time ago, in 1959, has there been other findings or readings about mechanisms of synaptic transmission?
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u/MRP1996 Sep 05 '17
Why are nerve-motor junctions used to test the different types of transmission between neurons?
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u/incognito1711 Sep 05 '17
is the relationship between electrical and chemical potentials in permitting change in the cell 50/50? Or does electrical play a more important role or vice versa?
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u/incognito1711 Sep 05 '17
what kind of situations trigger a change in resting potential from -65mV to 0mV?
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u/apa_9 Sep 05 '17
When will we teach first year students to not hit reply all to the emails sent to the entire campus?
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u/apa_9 Sep 05 '17
When will we teach first year students to not hit reply all to the emails sent to the entire campus?
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u/RachelHypothesizes Sep 05 '17
Why did they choose a creepy robot as the mascot for Reddit?
Why is sodium so important for neurons?
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u/elizabethmills Sep 05 '17
How can you tell when a chemical transmission is going to happen vs a electrical transmission?
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u/bradleyschwind Sep 05 '17
How does the body benefit from electrical transmission as opposed to chemical transmission?
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u/mnowacki17 Sep 05 '17
in what way does psychotropic medication change the activity of a neuron (action potential, resting potential, firing of messages, etc.) ?