ArticleFrontiers in neuroanatomy2014
Subcollicular projections to the auditory thalamus and collateral projections to the inferior colliculus.
Article in Frontiers in neuroanatomy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 35 citations in OpenAlex.
- Obliteration of a glycinergic projection to the medial geniculate in an animal model of autism.Frontiers in cellular neuroscience · 2024Article
- Cochlear synaptopathy impairs suprathreshold tone-in-noise coding in the cochlear nucleus.The Journal of physiology · 2023Article
- Descending projections to the auditory midbrain: evolutionary considerations.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2023Review
- Leveling up: a long-range olivary projection to the medial geniculate without collaterals to the central nucleus of the inferior colliculus in rats.Experimental brain research · 2022Article
- Olivocochlear projections contribute to superior intensity coding in cochlear nucleus small cells.The Journal of physiology · 2022Article
- Abnormal morphology and subcortical projections to the medial geniculate in an animal model of autism.Experimental brain research · 2021Article
- AP-2δ Expression Kinetics in Multimodal Networks in the Developing Chicken Midbrain.Frontiers in neural circuits · 2021Article
- Dopamine in Auditory Nuclei and Lemniscal Projections is Poised to Influence Acoustic Integration in the Inferior Colliculus.Frontiers in neural circuits · 2021Article
- Multiple Sources of Cholinergic Input to the Superior Olivary Complex.Frontiers in neural circuits · 2021Article
- Nitric Oxide-Mediated Plasticity of Interconnections Between T-Stellate cells of the Ventral Cochlear Nucleus Generate Positive Feedback and Constitute a Central Gain Control in the Auditory System.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019Article
- Bilateral projections to the thalamus from individual neurons in the inferior colliculus.The Journal of comparative neurology · 2019Article
- GABAergic and non-GABAergic projections to the superior colliculus from the auditory brainstem.Brain structure & function · 2018Article
- Cellular Computations Underlying Detection of Gaps in Sounds and Lateralizing Sound Sources.Trends in neurosciences · 2017Review
- Maladaptive plasticity in tinnitus--triggers, mechanisms and treatment.Nature reviews. Neurology · 2016Review
- Mind the Gap: Two Dissociable Mechanisms of Temporal Processing in the Auditory System.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016Article
- Neural population encoding and decoding of sound source location across sound level in the rabbit inferior colliculus.Journal of neurophysiology · 2016Article
- A function for binaural integration in auditory grouping and segregation in the inferior colliculus.Journal of neurophysiology · 2015Article
- Descending projections from auditory cortex to excitatory and inhibitory cells in the nucleus of the brachium of the inferior colliculus.Frontiers in systems neuroscience · 2014Article
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3 authors at 2 institutions in 1 country.
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Abstract
Experiments in several species have identified direct projections to the medial geniculate nucleus (MG) from cells in subcollicular auditory nuclei. Moreover, many cochlear nucleus cells that project to the MG send collateral projections to the inferior colliculus (IC) (Schofield et al., 2014). We conducted three experiments to characterize projections to the MG from the superior olivary and the lateral lemniscal regions in guinea pigs. For experiment 1, we made large injections of retrograde tracer into the MG. Labeled cells were most numerous in the superior paraolivary nucleus, ventral nucleus of the trapezoid body, lateral superior olivary nucleus, ventral nucleus of the lateral lemniscus, ventrolateral tegmental nucleus, paralemniscal region and sagulum. Additional sources include other periolivary nuclei and the medial superior olivary nucleus. The projections are bilateral with an ipsilateral dominance (66%). For experiment 2, we injected tracer into individual MG subdivisions. The results show that the subcollicular projections terminate primarily in the medial MG, with the dorsal MG a secondary target. The variety of projecting nuclei suggest a range of functions, including monaural and binaural aspects of hearing. These direct projections could provide the thalamus with some of the earliest (i.e., fastest) information regarding acoustic stimuli. For experiment 3, we made large injections of different retrograde tracers into one MG and the homolateral IC to identify cells that project to both targets. Such cells were numerous and distributed across many of the nuclei listed above, mostly ipsilateral to the injections. The prominence of the collateral projections suggests that the same information is delivered to both the IC and the MG, or perhaps that a common signal is being delivered as a preparatory indicator or temporal reference point. The results are discussed from functional and evolutionary perspectives.
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