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Université de Fribourg

Direct comparison between properties of adaptation of the auditory nerve and the ventral cochlear nucleus in response to repetitive clicks

Meyer, Kaspar ; Rouiller, Eric M. ; Loquet, Gérard

In: Hearing Research, 2007, vol. 228, no. 1-2, p. 144-155

The present study was designed to complete two previous reports [Loquet, G., Rouiller, E.M., 2002. Neural adaptation to pulsatile acoustical stimulation in the cochlear nucleus of the rat. Hear. Res. 171, 72–81; Loquet, G., Meyer, K., Rouiller, E.M., 2003. Effects of intensity of repetitive acoustic stimuli on neural adaptation in the ventral cochlear nucleus of the rat. Exp. Brain Res. 153,...

Université de Fribourg

Synaptic influences of pontine nuclei on cochlear nucleus cells

Babalian, Alexander L.

In: Experimental Brain Research, 2006, vol. 167, no. 3, p. 451-457

Using the in vitro isolated whole brain preparation of the guinea pig, we tested the synaptic effects induced by the stimulation of pontine nuclei (PN) in intracellularly recorded and stained principal cells of the cochlear nucleus (CN). Twenty percent of the recorded cells in all CN subdivisions responded to stimulation of either ipsilateral or contralateral PN, and 12% of the cells...

Université de Fribourg

Matching the neural adaptation in the rat ventral cochlear nucleus produced by artificial (electric) and acoustic stimulation of the cochlea

Loquet, Gérard ; Pelizzone, Marco ; Valentini, Gregory ; Rouiller, Eric M.

In: Audiology and Neuro-Otology, 2004, vol. 9, p. 144-159

To investigate neural adaptive properties, near-field evoked potentials were recorded from a chronically implanted electrode in the ventral cochlear nucleus in awake Long-Evans rats exposed to acoustic stimuli or receiving intracochlear electric stimulation. Stimuli were 250-ms trains of repetitive acoustic clicks (10, 30 and 50 dB SPL) or biphasic electric pulses (30, 50 and 70 µA) with...