Modelle der Nervenerregung

@article{Bonhoeffer2004ModelleDN,
  title={Modelle der Nervenerregung},
  author={Klaus Bonhoeffer},
  journal={Naturwissenschaften},
  year={2004},
  volume={40},
  pages={301-311}
}
Ein explosibles Gasgemisch, ein Stfick passives Eisen in IIicht zu konzentrierter Salpeters~iUre ulid ein lebender Nerv. [...] Key Result In allen drei F~illen bleibt das Ereignis nicht auf den Ort der StSrung beschr~inkt, sondern es breitet sich fiber das ganze System aus. Das System ist also zwar im Ruhezustand stabil, i n erreichbarer N~the vom Ruhezustand aber befindet sich ein labiler Zustand, und, wenn dieser labile Zustand erreicht ist, so kann das an dieser Stelle eintretende ,,Ereignis" bewirken, dab…Expand
Prolonged action potentials and regenerative hyperpolarizing responses in Purkinje fibers of mammalian heart
  • J. J. Chang, R. Schmidt
  • Chemistry, Medicine
  • Pflüger's Archiv für die gesamte Physiologie des Menschen und der Tiere
  • 2004
TLDR
Results seem to indicate that two stable potential stares can also be demonstrated in the heart membrane. Expand
Cortical spreading depression in reaction-diffusion models
Cortical Spreading Depression (CSD) is a pathological dysfunction of brain activity that occurs during neurological diseases like e.g. migraine and stroke. In the electrocorticogram, it can beExpand
New Mechanisms of Disorder Tissue Model
We study dynamical regimes in a two dimensional excitable medium driven by a cluster of nonidentical oscillatory elements inside of it. In general, similar topologies take place e.g. in heart, whereExpand
Transient Localized Wave Patterns and Their Application to Migraine
TLDR
The results support the controversial idea that waves of cortical spreading depression have a causal relationship with the headache phase in migraine and occur not only in migraine with aura (MA), but also in migraine without aura (MO), i.e., in the two major migraine subtypes. Expand
Controlling the onset of traveling pulses in excitable media by nonlocal spatial coupling and time-delayed feedback.
TLDR
The hybrid model combines the two major signaling systems in the brain, namely, volume transmission and synaptic transmission and results in an effective change in RD parameters controlled by augmented transmission. Expand
Chloride and calcium in Photosystem II: from effects to enigma*
  • P. Homann
  • Chemistry, Medicine
  • Photosynthesis Research
  • 2004
This minireview focuses on the early evidence for roles of chloride and calcium ions in reactions of photosynthetic electron transport and on the reluctance with which an essential function of theseExpand
Synchronization properties of coupled electrochemical bursters
In the present paper the non-linear time evolution of the electrodissolution/passivation of iron in sulfuric acid–sodium chloride solution is explored. The working electrode is an assembly of twoExpand
Noise-induced neural impulses
TLDR
It is demonstrated in this paper that a noise term added to the Bonhoeffer-van der Pol model can reproduce the firing patterns of neurons very well and that the ensuing distribution functions represent only the global characteristics of the underlying force field. Expand
Synchronization phenomena in mixed media of passive, excitable, and oscillatory cells.
TLDR
It is found that synchronization clusters are determined by concentric and spiral waves arising due to the heterogeneity of medium push covered cells to oscillate in synchrony. Expand
Nucleation of reaction-diffusion waves on curved surfaces
We study reaction-diffusion waves on curved two-dimensional surfaces, and determine the influence of curvature upon the nucleation and propagation of spatially localized waves in an excitable mediumExpand
...
1
2
...

References

SHOWING 1-10 OF 29 REFERENCES
Über Erregbarkeitsänderungen des Nerven beim übergang von nicht-rhythmischer zu rhythmischer Reizbeantwortung
I. Einleitung. Mit der besseren l%egistriertechnik yon Aktionspotentialen hat sich immer mehr gezeigt, wie aul]erordentlich verbreitet rhythmische Erregungen im natfirlichen Geschehen desExpand
Vom Wesen der Ordnung im Zentralnervensystem
TLDR
Diese Reflexkettenvorstellung erfreute sich bald allgemeiner ]3eliebtheit, denn sie schien geeignet, zahlreiche F~itle einer nerv6sen Koordination verstXndlich zu machen. Expand
Zur Theorie des elektrischen Reizes
in Kombination mi t ether Eichung ist also auch die quanti tat ive Seite zug~nglich. Das erscheint nun zuerst als eta weitgefaBtes Progralnm, und ta t s/ichlich hat es ether bedeutendenExpand
Über Aktivitätswellen auf passiven Eisendrähten
ZusammenfassungEs wird das Verhalten eines passiven Eisendrahtes (Klaviersaitendraht) in Salpetersäure (Dichte 1,315 bis 1,375) bei einer Aktivierung untersucht. Dabei wird an dem gleichenExpand
Der am Ranvierschen Knoten entstehende Aktionsstrom und seine Bedeutung für die Erregungsleitung
  • I. Tasaki, T. Takeuchi
  • Chemistry
  • Pflüger's Archiv für die gesamte Physiologie des Menschen und der Tiere
  • 2005
u kurzem hat der eine yon uns 1 fiber eine biologische Methode zur Untersuchung des am Ranvierschen Knoten ents~ehenden Ak~ionsstroms berichtet und die Bedeutung der dabei erhobenen Befunde in bezugExpand
Die biologischen Rhythmus-Phänomene als selbständige bzw. erzwungene Kippvorgänge betrachtet
  • A. Bethe
  • Biology
  • Pflüger's Archiv für die gesamte Physiologie des Menschen und der Tiere
  • 2005
TLDR
Der friiher yon mir angewandte Ausdruek Vollrhythmus ist mehrdeutig, da damit in der Pathologie ein spezieller Fall gleiche h bei 1 : 1-Rhythmus gemeint ist. Expand
THE RECOVERY OF TRANSMISSIVITY IN PASSIVE IRON WIRES AS A MODEL OF RECOVERY PROCESSES IN IRRITABLE LIVING SYSTEMS
  • R. Lillie
  • Chemistry, Medicine
  • The Journal of general physiology
  • 1920
TLDR
The phenomena of partial or limited transmission during the second phase of the recovery process show a close correspondence with the phenomena of conduction with decrement in irritable living tissues such as nerve. Expand
A theory of the effects of fibre size in medullated nerve
  • W. Rushton
  • Chemistry, Medicine
  • The Journal of physiology
  • 1951
TLDR
The interesting thing is that the nerve fibres do, in fact, exhibit the structural similarity demanded by the theory, and hence it is worth while to examine how far the variation in properties also accords with theoretical predictions. Expand
Measurement of current‐voltage relations in the membrane of the giant axon of Loligo
TLDR
The importance of ionic movements in excitable tissues has been emphasized by a number of recent experiments which are consistent with the theory that nervous conduction depends on a specific increase in permeability which allows sodium ions to move from the more concentrated solution outside a nerve fibre to the more dilute solution inside it. Expand
RECTIFICATION AND INDUCTANCE IN THE SQUID GIANT AXON
  • K. Cole
  • Materials Science, Medicine
  • The Journal of general physiology
  • 1941
TLDR
A formal analogy is found between the calculated membrane potential and the excitability defined by the two factor formulations of excitation and several excitation phenomena may be explained semi-quantitatively by further assuming the excitable proportional to the membrane potential. Expand
...
1
2
3
...