Thalamic input to auditory cortex is locally heterogeneous but globally tonotopic
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چکیده
منابع مشابه
Thalamic input to auditory cortex is locally heterogeneous but globally tonotopic
Topographic representation of the receptor surface is a fundamental feature of sensory cortical organization. This is imparted by the thalamus, which relays information from the periphery to the cortex. To better understand the rules governing thalamocortical connectivity and the origin of cortical maps, we used in vivo two-photon calcium imaging to characterize the properties of thalamic axons...
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Since the early days of functional magnetic resonance imaging (fMRI), retinotopic mapping emerged as a powerful and widely-accepted tool, allowing the identification of individual visual cortical fields and furthering the study of visual processing. In contrast, tonotopic mapping in auditory cortex proved more challenging primarily because of the smaller size of auditory cortical fields. The sp...
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The basis for multiple representations of equivalent frequency ranges in auditory cortex was studied with physiological and anatomical methods. Our goal was to trace the convergence of thalamic, commissural, and corticocortical information upon two tonotopic fields in the cat, the primary auditory cortex (AI) and the anterior auditory field (AAF). Both fields are among the first cortical levels...
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متن کاملThalamic input to the cerebral cortex
Classical morphological techniques have permitted the identification o f the presynaptic input into areas o f the cerebral cortex from the thalamus. However, these techniques have not been suitable for identifying the types o f cells upon which these afferent fibres synapse. Alan Peters describes a modification and combination o f l ight and electronmicroscopic techniques which has now enabled ...
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ژورنال
عنوان ژورنال: eLife
سال: 2017
ISSN: 2050-084X
DOI: 10.7554/elife.25141