77 questions · 35 sources · 0 syntheses
Neuron Physiology and Signaling
How individual neurons generate and transmit signals.
Source-derived questions
Questions extracted from the papers in this topic, excluding the curated questions above.
- How accurate have Cajal's hand-drawn neuron illustrations turned out to be compared to modern electron microscopy?
- How did Armstrong and Hille use electrophysiology to map ion channel behaviour before anyone could see the channels?
- How did Cajal use Golgi's own staining technique to argue against Golgi's theory of a continuous nerve network?
- How did Cajal's drawings of neurons prove that the nervous system was made of discrete cells rather than a continuous web?
- How did David Julius use capsaicin to identify the receptor for heat, TRPV1?
- How did Eric Kandel use the sea slug Aplysia to explain short-term versus long-term memory?
- How did Erlanger and Gasser use oscilloscope technology to disprove the idea that a nerve acts like a single wire?
- How did Henry Dale first extract histamine from ergot fungus rather than from animal tissue?
- How did Hubel and Wiesel discover that visual cortex neurons respond to specific features like edges and angles?
- How did Julius Axelrod's discovery of noradrenaline re-uptake lead to modern antidepressant drugs?
- How did Karl Deisseroth combine these microbial proteins to switch neurons on and off with light?
- How did Loewi's dream on Easter Saturday 1921 lead directly to a testable experiment?
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- How did Paul Bosland selectively breed capsaicin out of the jalapeño while keeping its shape and flavour?
- How did Santiago Ramón y Cajal use Golgi's own staining method to argue against Golgi's reticular theory?
- How did Sherrington and Adrian's work reframe the neuron as an active computational unit rather than a passive wire?
- How did the newly infatuated group's results differ from people in long-term relationships?
- How do Piezo channels give the body its sense of touch and proprioception?
- How do calcium ions trigger neurotransmitter release in under a millisecond?
- How do channelrhodopsins let green algae steer toward or away from light?
- How does L-DOPA therapy restore movement to Parkinson's patients?
- How does a locust detect an imminent collision using only a handful of neurons?
- How does a potassium channel achieve ten-thousand-to-one selectivity over sodium ions that are barely smaller?
- How does a potassium channel's selectivity filter distinguish potassium ions from similarly sized sodium ions?
- How does calcium binding to synaptotagmin trigger the final fusion step of neurotransmitter release?
- How does needing to urinate affect a person's risk tolerance and self-control?
- How does the action potential propagate along a neuron once triggered?
- How does the patch-clamp technique isolate the electrical signal of a single ion channel?
- How does the retina's edge-sharpening mechanism resemble the sharpening filters used in modern photo editing?
- How long did nasal relief from orgasm last compared to a decongestant spray?
- What did Arvid Carlsson prove about dopamine that overturned earlier assumptions?
- What did Bernard Katz mean by showing that acetylcholine release at the neuromuscular junction is 'quantal'?
- What did Camillo Golgi's silver-staining technique allow scientists to see for the first time?
- What did Edgar Adrian discover about how nerve fibres encode signal strength?
- What did Edgar Adrian's earlier Nobel-winning work show about how nerve impulses are structured?
- What did Hartline's horseshoe crab experiments reveal about lateral inhibition between photoreceptors?
- What did Hodgkin and Huxley later discover about the role of sodium and potassium ions in generating the nerve spike?
- What did John Eccles discover about whether synaptic transmission is chemical or electrical?
- What did Marazziti's study compare between newly infatuated people and OCD patients?
- What did Paul Greengard discover about how slow-acting neurotransmitters signal cells?
- What did Roderick MacKinnon's crystallised potassium channel structure reveal that electrical measurements alone could not?
- What did the serotonin transporter levels reveal about people newly in love?
- What do the Hodgkin-Huxley equations describe about sodium and potassium ion flow during an action potential?
- What does scaling from principles and circuit models to complex end-to-end trainable systems reveal about how the brain manages information processing demands?
- What does the sodium-potassium pump do for a nerve cell, and why was it such a significant find?
- What experiment did Otto Loewi run on two frog hearts to prove nerve signals are chemical rather than purely electrical?
- What experimental method did Patapoutian use to discover the Piezo1 and Piezo2 channels?
- What explains the two-part sensation of a quick sharp 'ouch' followed later by a deeper ache from the same injury?
- What is inhibitory spillover, and how does it explain the bladder-decision-making link?
- What is the difference between the reticular theory and the neuron doctrine of the nervous system?
- What is the hypoalgesic effect of swearing and what causes it?
- What kinds of cellular structures became visible for the first time once super-resolution microscopy existed?
- What makes removing a dominant trait like capsaicin production a multi-generation breeding challenge?
- What neurological explanation is offered for semantic satiation, the sense that a repeated word loses its meaning?
- What physiological mechanism explains why orgasm relieves nasal congestion?
- What range of bodily functions did Hess's electrode-stimulation experiments reveal were coordinated by this brain region?
- What role did Henry Dale play in identifying acetylcholine and mapping the neurotransmitter system?
- What role do vitamins B2 and B6 play in vision and nerve function according to Kuhn's research?
- What role does noradrenaline play in the sympathetic nervous system, according to Ulf von Euler's work?
- What role does serotonin play in coordinating the release of eggs and sperm in clams?
- What role does the selectivity filter's geometry play in how neurons fire?
- What synaptic vesicle proteins did Richard Scheller identify as the core of the docking and fusion apparatus?
- What technical advance in the 1920s finally made it possible to record a single nerve fibre instead of a smeared average?
- What was the central disagreement between the neuron doctrine and the reticular theory of the nervous system?
- Which modern drug classes work by altering the chemical signalling between nerves that Loewi and Dale discovered?
- Why did Cajal and Camillo Golgi share the 1906 Nobel Prize despite holding opposite views on nerve structure?
- Why did Hodgkin and Huxley use the giant axon of a squid for their nerve impulse experiments?
- Why did the two Nobel laureates use their acceptance lectures to publicly disagree with each other?
- Why do thick, myelinated nerve fibres conduct signals so much faster than thin, unmyelinated ones?
- Why does C. elegans' simple, well-mapped nervous system make it useful for studying how ethanol affects neurons?
- Why does TRPV1 make spicy food and high heat feel like the same sensation?
- Why does a neuron extending down a metre-long axon depend on kinesin to survive?
- Why does blocking a neurotransmitter transporter make that neurotransmitter linger longer in the synapse?
- Why does capsaicin deter mammals from eating peppers while leaving birds unaffected?
- Why does neurotransmitter release need to happen in under a millisecond, and what machinery makes that speed possible?
- Why was it previously impossible to observe individual ion channels rather than population averages?
- Why was the 1906 joint Nobel Prize to Golgi and Cajal considered an awkward pairing?
- Why were two unrelated discoveries about cellular energy and ion transport awarded the same prize?
Sources
- Deep Learning for Cognitive Neuroscience
- Adrian and Hodgkin pioneer electrophysiology
- Death of Santiago Ramón y Cajal
- Identification of histamine
- Ig Nobel Prize in Biology
- Ig Nobel Prize in Biology
- Ig Nobel Prize in Chemistry
- Ig Nobel Prize in Chemistry
- Ig Nobel Prize in Literature
- Ig Nobel Prize in Medicine
- Ig Nobel Prize in Medicine
- Ig Nobel Prize in Peace
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- Ig Nobel Prize in Peace
- Lasker Award (Basic Medical Research)
- Lasker Award (Basic Medical Research)
- Lasker Award (Basic Medical Research)
- Lasker Award (Basic Medical Research)
- Nobel Prize in Chemistry
- Nobel Prize in Chemistry
- Nobel Prize in Chemistry
- Nobel Prize in Chemistry
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Nobel Prize in Physiology or Medicine
- Ramón y Cajal and Golgi share first Physiology or Medicine Prize insights