Cell-specific, spike timing–dependent plasticities in the dorsal cochlear nucleus

2004 ◽  
Vol 7 (7) ◽  
pp. 719-725 ◽  
Author(s):  
Thanos Tzounopoulos ◽  
Yuil Kim ◽  
Donata Oertel ◽  
Laurence O Trussell
2006 ◽  
Vol 69 (10-12) ◽  
pp. 1191-1194 ◽  
Author(s):  
Patrick D. Roberts ◽  
Christine V. Portfors ◽  
Nathaniel Sawtell ◽  
Richard Felix II

2018 ◽  
Vol 133 ◽  
pp. 319-333 ◽  
Author(s):  
Timothy Olsen ◽  
Alberto Capurro ◽  
Nadia Pilati ◽  
Charles H. Large ◽  
Martine Hamann

2010 ◽  
Vol 33 (3) ◽  
pp. 409-420 ◽  
Author(s):  
Seth D. Koehler ◽  
Shashwati Pradhan ◽  
Paul B. Manis ◽  
Susan E. Shore

2007 ◽  
Vol 97 (6) ◽  
pp. 4162-4172 ◽  
Author(s):  
Sarah E. Street ◽  
Paul B. Manis

Many studies of the dorsal cochlear nucleus (DCN) have focused on the representation of acoustic stimuli in terms of average firing rate. However, recent studies have emphasized the role of spike timing in information encoding. We sought to ascertain whether DCN pyramidal cells might employ similar strategies and to what extent intrinsic excitability regulates spike timing. Gaussian distributed low-pass noise current was injected into pyramidal cells in a brain slice preparation. The shuffled autocorrelation-based analysis was used to compute a correlation index of spike times across trials. The noise causes the cells to fire with temporal precision (SD ≅ 1–2 ms) and high reproducibility. Increasing the coefficient of variation of the noise improved the reproducibility of the spike trains, whereas increasing the firing rate of the neuron decreased the neurons' ability to respond with predictable patterns of spikes. Simulated inhibitory postsynaptic potentials superimposed on the noise stimulus enhanced spike timing for >300 ms, although the enhancement was greatest during the first 100 ms. We also found that populations of pyramidal neurons respond to the same noise stimuli with correlated spike trains, suggesting that ensembles of neurons in the DCN receiving shared input can fire with similar timing. These results support the hypothesis that spike timing can be an important aspect of information coding in the DCN.


2014 ◽  
Vol 92 (11) ◽  
pp. 1466-1477 ◽  
Author(s):  
Hao Luo ◽  
Edward Pace ◽  
Xueguo Zhang ◽  
Jinsheng Zhang

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