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Relevant bibliographies by topics / Tonotopic map

Academic literature on the topic 'Tonotopic map'

Author: Grafiati

Published: 10 December 2022

Last updated: 29 January 2023

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Journal articles on the topic "Tonotopic map"

1

Ozaki, Isamu, and Isao Hashimoto. "Human Tonotopic Maps and their Rapid Task-Related Changes Studied by Magnetic Source Imaging." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 34, no. 2 (May 2007): 146–53. http://dx.doi.org/10.1017/s0317167100005965.

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A brief review of previous studies is presented on tonotopic organization of primary auditory cortex (AI) in humans. Based on the place theory for pitch perception, in which place information from the cochlea is used to derive pitch, a well-organized layout of tonotopic map is likely in human AI. The conventional view of tonotopy in human AI is a layout inwhich the medial-to-lateral portion of Heschl's gyrus represents high-to-low frequency tones. However, we have shown that the equivalent current dipole (BCD) in auditory evoked magnetic fields in the rising phase of N100m response dynamically moves along the long axis of Heschl's gyrus. Based on analyses of the current sources for high-pitched and low-pitched tones in the right and left hemispheres, we propose an alternative tonotopic map in human AI. In the right AI, isofrequency bands for each tone frequency are parallell to the first transverse sulcus; on the other hand, the layout for tonotopy in the left AI seems poorly organized. The validity of single dipole modelling in the calculation of a moving source and the discrepancy as to tonotopic maps in the results between auditory evoked fields or intracerebral recordings and neuroimaging studies also are discussed. The difference in the layout of isofrequency bands between the right and left auditory cortices may reflect distinct functional roles in auditory information processing such as pitch versus phonetic analysis.

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2

Pienkowski, Martin, and Jos J. Eggermont. "Cortical tonotopic map plasticity and behavior." Neuroscience & Biobehavioral Reviews 35, no. 10 (November 2011): 2117–28. http://dx.doi.org/10.1016/j.neubiorev.2011.02.002.

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3

Jones, Sherri M., and Timothy A. Jones. "The tonotopic map in the embryonic chicken cochlea." Hearing Research 82, no. 2 (February 1995): 149–57. http://dx.doi.org/10.1016/0378-5955(94)00173-n.

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4

Slee, Sean J., Matthew H. Higgs, Adrienne L. Fairhall, and William J. Spain. "Tonotopic Tuning in a Sound Localization Circuit." Journal of Neurophysiology 103, no. 5 (May 2010): 2857–75. http://dx.doi.org/10.1152/jn.00678.2009.

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Nucleus laminaris (NL) neurons encode interaural time difference (ITD), the cue used to localize low-frequency sounds. A physiologically based model of NL input suggests that ITD information is contained in narrow frequency bands around harmonics of the sound frequency. This suggested a theory, which predicts that, for each tone frequency, there is an optimal time course for synaptic inputs to NL that will elicit the largest modulation of NL firing rate as a function of ITD. The theory also suggested that neurons in different tonotopic regions of NL require specialized tuning to take advantage of the input gradient. Tonotopic tuning in NL was investigated in brain slices by separating the nucleus into three regions based on its anatomical tonotopic map. Patch-clamp recordings in each region were used to measure both the synaptic and the intrinsic electrical properties. The data revealed a tonotopic gradient of synaptic time course that closely matched the theoretical predictions. We also found postsynaptic band-pass filtering. Analysis of the combined synaptic and postsynaptic filters revealed a frequency-dependent gradient of gain for the transformation of tone amplitude to NL firing rate modulation. Models constructed from the experimental data for each tonotopic region demonstrate that the tonotopic tuning measured in NL can improve ITD encoding across sound frequencies.

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5

Zeng, Huan-huan, Jun-feng Huang, Ming Chen, Yun-qing Wen, Zhi-ming Shen, and Mu-ming Poo. "Local homogeneity of tonotopic organization in the primary auditory cortex of marmosets." Proceedings of the National Academy of Sciences 116, no. 8 (February 4, 2019): 3239–44. http://dx.doi.org/10.1073/pnas.1816653116.

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Marmoset has emerged as a useful nonhuman primate species for studying brain structure and function. Previous studies on the mouse primary auditory cortex (A1) showed that neurons with preferential frequency-tuning responses are mixed within local cortical regions, despite a large-scale tonotopic organization. Here we found that frequency-tuning properties of marmoset A1 neurons are highly uniform within local cortical regions. We first defined the tonotopic map of A1 using intrinsic optical imaging and then used in vivo two-photon calcium imaging of large neuronal populations to examine the tonotopic preference at the single-cell level. We found that tuning preferences of layer 2/3 neurons were highly homogeneous over hundreds of micrometers in both horizontal and vertical directions. Thus, marmoset A1 neurons are distributed in a tonotopic manner at both macro- and microscopic levels. Such organization is likely to be important for the organization of auditory circuits in the primate brain.

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6

Yan, Jun, and Günter Ehret. "Corticofugal reorganization of the midbrain tonotopic map in mice." Neuroreport 12, no. 15 (October 2001): 3313–16. http://dx.doi.org/10.1097/00001756-200110290-00033.

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7

Scharinger, Mathias, William J. Idsardi, and Samantha Poe. "A Comprehensive Three-dimensional Cortical Map of Vowel Space." Journal of Cognitive Neuroscience 23, no. 12 (December 2011): 3972–82. http://dx.doi.org/10.1162/jocn_a_00056.

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Mammalian cortex is known to contain various kinds of spatial encoding schemes for sensory information including retinotopic, somatosensory, and tonotopic maps. Tonotopic maps are especially interesting for human speech sound processing because they encode linguistically salient acoustic properties. In this study, we mapped the entire vowel space of a language (Turkish) onto cortical locations by using the magnetic N1 (M100), an auditory-evoked component that peaks approximately 100 msec after auditory stimulus onset. We found that dipole locations could be structured into two distinct maps, one for vowels produced with the tongue positioned toward the front of the mouth (front vowels) and one for vowels produced in the back of the mouth (back vowels). Furthermore, we found spatial gradients in lateral–medial, anterior–posterior, and inferior–superior dimensions that encoded the phonetic, categorical distinctions between all the vowels of Turkish. Statistical model comparisons of the dipole locations suggest that the spatial encoding scheme is not entirely based on acoustic bottom–up information but crucially involves featural–phonetic top–down modulation. Thus, multiple areas of excitation along the unidimensional basilar membrane are mapped into higher dimensional representations in auditory cortex.

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8

Harrison, Robert V. "Age-related tonotopic map plasticity in the central auditory pathways." Scandinavian Audiology 30, no. 2 (January 2001): 8–14. http://dx.doi.org/10.1080/010503901750166529.

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9

Manley, Geoffrey A., Christine Köppl, and Michael Sneary. "Reversed tonotopic map of the basilar papilla in Gekko gecko." Hearing Research 131, no. 1-2 (May 1999): 107–16. http://dx.doi.org/10.1016/s0378-5955(99)00021-0.

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10

Kalish, Brian T., Tania R. Barkat, Erin E. Diel, Elizabeth J. Zhang, Michael E. Greenberg, and Takao K. Hensch. "Single-nucleus RNA sequencing of mouse auditory cortex reveals critical period triggers and brakes." Proceedings of the National Academy of Sciences 117, no. 21 (May 13, 2020): 11744–52. http://dx.doi.org/10.1073/pnas.1920433117.

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Auditory experience drives neural circuit refinement during windows of heightened brain plasticity, but little is known about the genetic regulation of this developmental process. The primary auditory cortex (A1) of mice exhibits a critical period for thalamocortical connectivity between postnatal days P12 and P15, during which tone exposure alters the tonotopic topography of A1. We hypothesized that a coordinated, multicellular transcriptional program governs this window for patterning of the auditory cortex. To generate a robust multicellular map of gene expression, we performed droplet-based, single-nucleus RNA sequencing (snRNA-seq) of A1 across three developmental time points (P10, P15, and P20) spanning the tonotopic critical period. We also tone-reared mice (7 kHz pips) during the 3-d critical period and collected A1 at P15 and P20. We identified and profiled both neuronal (glutamatergic and GABAergic) and nonneuronal (oligodendrocytes, microglia, astrocytes, and endothelial) cell types. By comparing normal- and tone-reared mice, we found hundreds of genes across cell types showing altered expression as a result of sensory manipulation during the critical period. Functional voltage-sensitive dye imaging confirmed GABA circuit function determines critical period onset, while Nogo receptor signaling is required for its closure. We further uncovered previously unknown effects of developmental tone exposure on trajectories of gene expression in interneurons, as well as candidate genes that might execute tonotopic plasticity. Our single-nucleus transcriptomic resource of developing auditory cortex is thus a powerful discovery platform with which to identify mediators of tonotopic plasticity.

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Dissertations / Theses on the topic "Tonotopic map"

1

Webb, Jonathan J. B. "Organisation of primary auditory cortex in the mouse : a topography of inputs and responses." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:e3ea993d-28ad-4a03-bc82-f245b06d73c7.

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Books on the topic "Tonotopic map"

1

Ibrahim, Danyal. Plasticity of tonotopic maps in auditory midbrain following partial cochlear damage in developing chinchilla. Ottawa: National Library of Canada, 1993.

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Book chapters on the topic "Tonotopic map"

1

Mühlnickel, W., H. Flor, and T. Elbert. "Deviations from the Tonotopic Map are Correlated with Tinnitus Strength." In Biomag 96, 1049–52. New York, NY: Springer New York, 2000. http://dx.doi.org/10.1007/978-1-4612-1260-7_255.

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