Skip to main content

Gap Junctions, Neural Population Models and

  • Living reference work entry
  • Latest version View entry history
  • First Online:
Encyclopedia of Computational Neuroscience

Definition

Gap junctions, also known as electrical synapses, provide a means of direct, diffusive neuron-to-neuron communication; this information flow is completely separate from action potential-mediated signaling via chemical synapses. Gap junctions are connexin protein structures that connect the interiors of adjoining cells allowing free flow of transmembrane current. Gap junctions are found in most animal tissues and are widely expressed throughout the mammalian brain, most commonly at the points of contact between dendrites of inhibitory interneurons and between glial astrocytes (Bennett and Zukin 2004). Gap junctions between pairs of excitatory pyramidal cells are rare.

Gap junctions can be modeled as simple Ohmic-resistive connections between neighboring neurons. To date, almost all modeling studies have investigated the bulk effects of resistive coupling among cortical neurons by assembling large networks of discrete spiking neurons, and none of these have considered how...

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Institutional subscriptions

References

  • Beierlein M, Gibson JR, Connors BW (2000) A network of electrically coupled interneurons drives synchronized inhibition in the neocortex. Nat Neurosci 3(9):904–910. doi:10.1038/78809

    Article  PubMed  CAS  Google Scholar 

  • Bennett MV, Zukin RS (2004) Electrical coupling and neuronal synchronization in the mammalian brain. Neuron 41:495–511

    Article  PubMed  CAS  Google Scholar 

  • Carlen PL, Skinner F, Zhang L, Naus C, Kushnir M, Perez Velazquez JL (2000) The role of gap junctions in seizures. Brain Res Rev 32(1):235–241. doi:10.1016/S0165-0173(99)00084-3

    Article  PubMed  CAS  Google Scholar 

  • Destexhe A, Mainen ZF, Sejnowski TJ (1989) Kinetic models of synaptic transmission, chapter 1. In: Koch C, Segev I (eds) Methods in neuronal modeling, 2nd edn. MIT Press, Cambridge, MA, pp 135–169

    Google Scholar 

  • Fukuda T, Kosaka T, Singer W, Galuske RAW (2006) Gap junctions among dendrites of cortical GABAergic neurons establish a dense and widespread intercolumnar network. J Neurosci 26:3434–3443

    Article  PubMed  CAS  Google Scholar 

  • Galarreta M, Hestrin S (1999) A network of fast-spiking cells in the neocortex connected by electrical synapses. Nature 402(6757):72–75. doi:10.1038/47029

    Article  PubMed  CAS  Google Scholar 

  • Jacobson GM, Voss LJ, Melin SM, Mason JP, Cursons RT, Steyn-Ross DA, Steyn-Ross ML, Sleigh JW (2010) Connexin36 knockout mice display increased sensitivity to pentylenetetrazol-induced seizure-like behaviors. Brain Res 1360:198–204. doi:10.1016/j.brainres.2010.09.006

    Article  PubMed  CAS  Google Scholar 

  • Jin MM, Chen Z (2011) Role of gap junctions in epilepsy. Neurosci Bull 27(6):389–406

    Article  PubMed  Google Scholar 

  • Koch C (1999) Biophysics of computation: information processing in single neurons. Oxford University Press, New York

    Google Scholar 

  • Kopell N, Ermentrout B (2004) Chemical and electrical synapses perform complementary roles in the synchronization of interneuronal networks. Proc Natl Acad Sci U S A 101:15482–15487. doi:10.1073/pnas.0406343101

    Article  PubMed  CAS  PubMed Central  Google Scholar 

  • Liley DTJ, Cadusch PJ, Wright JJ (1999) A continuum theory of electro-cortical activity. Neurocomputing 26–27:795–800

    Article  Google Scholar 

  • Nadarajah B, Thomaidou D, Evans WH, Parnavelas JG (1996) Gap junctions in the adult cerebral cortex; regional differences in their distribution and cellular expression of connexins. J Comp Neurol 376:326–342

    Article  PubMed  CAS  Google Scholar 

  • Nagy JI (2012) Evidence for connexin36 localization at hippocampal mossy fiber terminals suggesting mixed chemical/electrical transmission by granule cells. Brain Res 1487:107–122. doi:10.1016/j.brainres.2012.05.064

    Article  PubMed  CAS  PubMed Central  Google Scholar 

  • Palacios-Prado N, Hoge G, Marandykina A, Rimkute L, Chapuis S, Paulauskas N, Skeberdis VA, O’Brien J, Pereda AE, Bennett MVL, Bukauskas FF (2013) Intracellular magnesium-dependent modulation of gap junction channels formed by neuronal connexin36. J Neurosci 33(11):4741–4753. doi:10.1523/JNEUROSCI.2825-12.2013

    Article  PubMed  CAS  PubMed Central  Google Scholar 

  • Rennie CJ, Wright JJ, Robinson PA (2000) Mechanisms for cortical electrical activity and emergence of gamma rhythm. J Theor Biol 205:17–35

    Article  PubMed  CAS  Google Scholar 

  • Schmitz D, Schuchmann S, Fisahn A, Draguhn A, Buhl EH, Petrasch-Parwez E, Dermietzel R, Heine-mann U, Traub RD (2001) Axo-axonal coupling: a novel mechanism for ultrafast neuronal communication. Neuron 31:831–840

    Article  PubMed  CAS  Google Scholar 

  • Skinner FK, Zhang L, Velazquez JL, Carlen PL (1999) Bursting in inhibitory interneuronal networks: a role for gap-junctional coupling. J Neurophysiol 81(3):1274–1283

    PubMed  CAS  Google Scholar 

  • Steyn-Ross ML, Steyn-Ross DA, Wilson MT, Sleigh JW (2007) Gap junctions mediate large-scale Turing structures in a mean-field cortex driven by subcortical noise. Phys Rev E 76:011916. doi:10.1103/PhysRevE.76.011916

    Article  Google Scholar 

  • Steyn-Ross ML, Steyn-Ross DA, Wilson MT, Sleigh JW (2008) Interacting Turing and Hopf instabilities drive pattern formation in a noise-driven model cortex, chapter 40. In: Wang R, Gu F, Shen E (eds) Advances in cognitive neurodynamics ICCN 2007. Springer, Dordrecht, pp 227–232

    Google Scholar 

  • Steyn-Ross ML, Steyn-Ross DA, Wilson MT, Sleigh JW (2009) Modeling brain activation patterns for the default and cognitive states. Neuroimage 45:298–311. doi:10.1016/j.neuroimage.2008. 11.036

    Article  PubMed  Google Scholar 

  • Steyn-Ross ML, Steyn-Ross DA, Wilson MT, Sleigh JW (2010) Cortical patterns and gamma genesis are modulated by reversal potentials and gap-junction diffusion, chapter 12. In: Steyn-Ross DA, Steyn-Ross ML (eds) Modeling phase transitions in the brain, vol 4, Springer series in computational neuroscience. Springer, New York, pp 271–299. doi:10.1007/978-1-4419-0796-7_12

    Chapter  Google Scholar 

  • Steyn-Ross ML, Steyn-Ross DA, Sleigh JW, Wilson MT (2011) A mechanism for ultra-slow oscillations in the cortical default network. Bull Math Biol 73(2):398–416. doi:10.1007/s11538-010-9565-9

    Article  PubMed  Google Scholar 

  • Steyn-Ross ML, Steyn-Ross DA, Sleigh JW (2012) Gap junctions modulate seizures in a mean-field model of general anesthesia for the cortex. Cogn Neurodyn 6(3):215–225. doi:10.1007/s11571-012-9194-0

    Article  PubMed  PubMed Central  Google Scholar 

  • Steyn-Ross ML, Steyn-Ross DA, Sleigh JW (2013) Interacting Turing-Hopf instabilities drive symmetry-breaking transitions in a mean-field model of the cortex: a mechanism for the slow oscillation. Phys Rev X 3(2):021005. doi:10.1103/PhysRevX.3.021005, URL: http://link.aps.org/doi/10.1103/PhysRevX.3.021005

  • Tamás G, Buhl EH, Lorincz A, Somogyi P (2000) Proximally targeted GABAergic synapses and gap junctions synchronize cortical interneurons. Nat Neurosci 3(4):366–371. doi:10.1038/73936

    Article  PubMed  Google Scholar 

  • Traub RD (1995) Model of synchronized population bursts in electrically coupled interneurons containing active dendritic conductances. J Comput Neurosci 2(4):283–289

    Article  PubMed  CAS  Google Scholar 

  • Traub RD, Bibbig A, Fisahn A, LeBeau FEN, Whittington MA, Buhl EH (2000) A model of gamma-frequency network oscillations induced in the rat CA3 region by carbachol in vitro. Eur J Neurosci 12:4093–4106

    Article  PubMed  CAS  Google Scholar 

  • Traub RD, Whittington MA, Buhl EH, LeBeau FE, Bibbig A, Boyd S, Cross H, Baldeweg T (2001) A possible role for gap junctions in generation of very fast EEG oscillations preceding the onset of, and perhaps initiating, seizures. Epilepsia 42(2):153–170

    Article  PubMed  CAS  Google Scholar 

  • Traub RD, Draguhn A, Whittington MA, Baldeweg T, Bibbig A, Buhl EH, Schmitz D (2002) Axonal gap junctions between principal neurons: a novel source of network oscillations, and perhaps epileptogenesis. Rev Neurosci 13(1):1–30

    Article  PubMed  Google Scholar 

  • Turing AM (1952) The chemical basis of morphogenesis. Philos Trans R Soc Lond 237:37–72

    Article  Google Scholar 

  • Voss LJ, Jacobson G, Sleigh JW (2011) Bridging the gap – understanding the role of gap junctions in seizures, chapter 5. In: Kaneez FS (ed) Underlying mechanisms of epilepsy. InTech, pp 77–98. www.intechopen.com/books/underlying-mechanisms-of-epilepsy/bridging-the-gap-understanding-the-role-of-gap-junctions-in-seizures

  • Yang L, Ling DSF (2007) Carbenoxolone modifies spontaneous inhibitory and excitatory synaptic transmission in rat somatosensory cortex. Neurosci Lett 416:221–226. doi:10.1016/j.neulet. 2007.01.042

    Article  PubMed  CAS  PubMed Central  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Moira Steyn-Ross .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2014 Springer Science+Business Media New York

About this entry

Cite this entry

Steyn-Ross, M., Steyn-Ross, A., Sleigh, J. (2014). Gap Junctions, Neural Population Models and. In: Jaeger, D., Jung, R. (eds) Encyclopedia of Computational Neuroscience. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7320-6_62-2

Download citation

  • DOI: https://doi.org/10.1007/978-1-4614-7320-6_62-2

  • Received:

  • Accepted:

  • Published:

  • Publisher Name: Springer, New York, NY

  • Online ISBN: 978-1-4614-7320-6

  • eBook Packages: Springer Reference Biomedicine and Life SciencesReference Module Biomedical and Life Sciences

Publish with us

Policies and ethics

Chapter history

  1. Latest

    Gap Junctions, Neural Population Models and
    Published:
    11 September 2014

    DOI: https://doi.org/10.1007/978-1-4614-7320-6_62-2

  2. Original

    Gap Junctions, Neural Population Models and
    Published:
    31 May 2014

    DOI: https://doi.org/10.1007/978-1-4614-7320-6_62-1