Neurons within the same network independently achieve conserved output by differentially balancing variable conductance magnitudes.

作者: J. L. Ransdell , S. S. Nair , D. J. Schulz

DOI: 10.1523/JNEUROSCI.1095-13.2013

关键词: Artificial neural networkConductanceBiologyVariable (computer science)Neuroscience

摘要: Biological and theoretical evidence suggest that individual neurons may achieve similar outputs by differentially balancing variable underlying ionic conductances. Despite the substantial amount of data consistent with this idea, a direct biological demonstration cells conserved output, particularly within same network, these via different solutions has been difficult to achieve. Here we demonstrate definitively from native neural networks highly output tuning conductance magnitudes. Multiple motor crab ( Cancer borealis ) cardiac ganglion have preparation, despite showing 2–4-fold range By blocking subsets currents, remaining conductances become unbalanced, causing disparate as result. Therefore, strategies understand neuronal excitability increasingly sophisticated, it is important such variability in neurons, even among those individual, taken into account.

参考文章(33)
Niraj S. Desai, Lana C. Rutherford, Gina G. Turrigiano, Plasticity in the intrinsic excitability of cortical pyramidal neurons Nature Neuroscience. ,vol. 2, pp. 515- 520 ,(1999) , 10.1038/9165
Jorge Golowasch, Mark S. Goldman, L. F. Abbott, Eve Marder, Failure of Averaging in the Construction of a Conductance-Based Neuron Model Journal of Neurophysiology. ,vol. 87, pp. 1129- 1131 ,(2002) , 10.1152/JN.00412.2001
Daniel K. Hartline, Impulse identification and axon mapping of the nine neurons in the cardiac ganglion of the lobster Homarus americanus. The Journal of Experimental Biology. ,vol. 47, pp. 327- 341 ,(1967)
Jason N. MacLean, Ying Zhang, Marie L. Goeritz, Richard Casey, Ricardo Oliva, John Guckenheimer, Ronald M. Harris-Warrick, Activity-independent coregulation of IA and Ih in rhythmically active neurons. Journal of Neurophysiology. ,vol. 94, pp. 3601- 3617 ,(2005) , 10.1152/JN.00281.2005
Kenro Tazaki, Ian M. Cooke, Separation of neuronal sites of driver potential and impulse generation by ligaturing in the cardiac ganglion of the lobster,Homarus americanus Journal of Comparative Physiology A-neuroethology Sensory Neural and Behavioral Physiology. ,vol. 151, pp. 329- 346 ,(1983) , 10.1007/BF00623908
Eve Marder, Adam L Taylor, Multiple models to capture the variability in biological neurons and networks Nature Neuroscience. ,vol. 14, pp. 133- 138 ,(2011) , 10.1038/NN.2735
Allyson L. Howard, Axel Neu, Robert J. Morgan, Julio C. Echegoyen, Ivan Soltesz, Opposing modifications in intrinsic currents and synaptic inputs in post-traumatic mossy cells: evidence for single-cell homeostasis in a hyperexcitable network. Journal of Neurophysiology. ,vol. 97, pp. 2394- 2409 ,(2007) , 10.1152/JN.00509.2006
A. L. Taylor, J.-M. Goaillard, E. Marder, How multiple conductances determine electrophysiological properties in a multicompartment model The Journal of Neuroscience. ,vol. 29, pp. 5573- 5586 ,(2009) , 10.1523/JNEUROSCI.4438-08.2009
R. Grashow, T. Brookings, E. Marder, Compensation for variable intrinsic neuronal excitability by circuit-synaptic interactions. The Journal of Neuroscience. ,vol. 30, pp. 9145- 9156 ,(2010) , 10.1523/JNEUROSCI.0980-10.2010