Research paperThe topographical organization of descending projections from the central nucleus of the inferior colliculus in guinea pig
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Cited by (83)
Central circuitry and function of the cochlear efferent systems
2022, Hearing ResearchCitation Excerpt :On the postsynaptic side, however, EPSPs mediated by IC activation utilize the same type of transmitter receptor as CN inputs, i.e., GluA2-lacking, Ca2+-permeable AMPA receptors (Romero and Trussell, 2021). Finally, careful tracer studies indicate that the descending input from IC is tonotopically organized in the VNTB/RPO, with a high-to-low frequency map extending medial to lateral (Caicedo and Herbert, 1993; Malmierca et al., 1996; Suthakar and Ryugo, 2017). Thus, there are tonotopic projections from CN and IC onto MOCs, but it remains unclear whether the narrowness of tuning of these projections is similar.
2.30 - The Inferior Colliculus
2020, The Senses: A Comprehensive Reference: Volume 1-7, Second EditionAblation of the auditory cortex results in changes in the expression of neurotransmission-related mRNAs in the cochlea
2017, Hearing ResearchCitation Excerpt :Previous studies have provided anatomical evidence for the presence of a descending efferent pathway originating in pyramidal neurons of layers V and VI of the auditory cortex (AC) reaching the cochlear receptor through connections with olivocochlear neurons (Mulders and Robertson, 2000b; Feliciano and Potashner, 1995). This pathway comprises downward projections with multiple feedback loops, including cortico-thalamic, cortico-collicular, cortico-(collicular)-olivocochlear and cortico-(collicular)-cochlear nucleus connections, that seem to work dynamically in combination (Bajo and Moore, 2005; Malmierca et al., 1996; Malmierca and Ryugo, 2011; Saldaña et al., 1996; Thompson and Schofield, 2000; Winer et al., 2001). The physiological effect of the cortical descending projections is to regulate the auditory signal processing in subcortical auditory nuclei (Liu et al., 2010; Luo et al., 2008; Suga et al., 2002; Yan et al., 2005; Lamas et al., 2013).
Descending projections from the inferior colliculus to medial olivocochlear efferents: Mice with normal hearing, early onset hearing loss, and congenital deafness
2017, Hearing ResearchCitation Excerpt :The tonotopic organization of the auditory system emphasizes the crucial role of frequency discrimination that underlies our ability to separate one sound from another. We confirmed the topographic descending projections from the CNIC to MOC efferent neurons in the VNTB in normal hearing animals (Caicedo and Herbert, 1993; Malmierca et al., 1996). We extended knowledge of these projections by documenting synapses between these projections and MOC neurons, immunostaining these projections for the glutamate transporter VGlut2, and revealing the terminal fields in three-dimensions using computer-aided microscopy.
Auditory System
2012, The Mouse Nervous System
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Present address: Laboratorio de Neurobiología de la Audición, Departamento de Biología Celular y Patología, Facultad de Medicina, Universidad de Salamanca, Avda. Campo Charro, s/n, 37007 Salamanca, Spain.