Commissural connections between the auditory cortices of the rat
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Cited by (29)
The functional characterization of callosal connections
2022, Progress in NeurobiologyCitation Excerpt :Unlike the visual and somatosensory areas, where interhemispheric inputs are addressed to the boundaries between areas and vicinities (see above), callosal connections are widespread across the tonotopically-organized representation of A1 (Code and Winer, 1986, 1985; Hackett and Phillips, 2011) and connect tonotopic regions with corresponding frequency domains across the hemispheres (Diamond et al., 1968; Imig and Brugge, 1978; Lee and Winer, 2008; Rouiller et al., 1991). Homotopic interactions have also been established anatomically in rats (Cipolloni and Peters, 1983; Rüttgers et al., 1990). In cats, combined anatomical and electrophysiological experiments revealed a complex pattern of interhemispheric connections, since CPNs and terminals were preferentially distributed over regions exhibiting binaural summation or ipsilateral dominance and suppression, rather than in regions of monaural contralateral responses or contralateral dominance and suppression (Imig and Brugge, 1978).
2.32 - Primary Auditory Cortex and the Thalamo-Cortico-Thalamic Circuitry I. Anatomy
2020, The Senses: A Comprehensive Reference: Volume 1-7, Second EditionAuditory System
2015, The Rat Nervous System: Fourth EditionInfluence of inter-field communication on neuronal response synchrony across auditory cortex
2013, Hearing ResearchCitation Excerpt :The current model of cortical connectivity predicts the various effects observed in the present study (AI→AII, AII→AI and AI→PAF). However, it is important to acknowledge that indirect cortico-thalamo-cortical as well as transcallosal connections may be involved in the observed phenomena (Diamond et al., 1968; Winer et al., 1977; Imig and Brugge, 1978; Andersen et al., 1980; Calford and Aitkin, 1983; Code and Winer, 1985; Ruttgers et al., 1990; Rouiller et al., 1991; Morel et al., 1993; Bordi and LeDoux, 1994; Clasca et al., 1997; Lee and Winer, 2008a). Future experimentation will be required to dissociate the mechanisms by which neuronal deactivation in one area directly or indirectly modulate changes in correlations levels in other regions of cortex.
Interplay of excitation and inhibition elicited by tonal stimulation in pyramidal neurons of primary auditory cortex
2011, Neuroscience and Biobehavioral ReviewsCitation Excerpt :In the auditory ascending pathway, because of the commissural projections at two subcortical levels (the cochlear nucleus and the inferior colliculus), acoustic stimulation to one ear eventually induces bilateral activation at any level. Since each hemisphere receives callosal projections from the opposite hemisphere (anatomically; Code and Winer, 1986; Imig and Brugge, 1978; Rüttgers et al., 1990; Wallace and Harper, 1997) (physiologically; Goycoolea et al., 2005; Kitzes and Doherty, 1994; Mitani and Shimokouchi, 1985), it is highly possible that monaural stimulation alone can drive cortical neurons in each hemisphere. This is by way of TC projections ipsilaterally and callosal inputs contralaterally.
Divergent response properties of layer-V neurons in rat primary auditory cortex
2005, Hearing ResearchCitation Excerpt :Layer-V consists of a number of different cell types (Winer and Prieto, 2001); among them are two pyramidal cell types that have been distinguished by their morphology, connectivity and in vitro electrophysiology. Fibers from large layer-V pyramidal neurons appear to make up the corticotectal system while a second group of smaller pyramidal neurons likely comprise the corticocortical (Ruttgers et al., 1990; Vaughan, 1983; Winer and Prieto, 2001) and corticostriatal projections (Ojima et al., 1992). Recent electrophysiological studies also described two distinct layer-V pyramidal types possessing different properties (Hefti and Smith, 2000, 2003).
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Present address: Institute of Anatomy, University of Lausanne, Lausanne, Switzerland.
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Present address: Department of Neurobiology, Stanford University School of Medicine, Stanford, CA 94305, U.S.A.