Two thalamic pathways to primary auditory cortex
نویسندگان
چکیده
منابع مشابه
Two thalamic pathways to primary auditory cortex.
Neurons in the center of cat primary auditory cortex (AI) respond to a narrow range of sound frequencies and the preferred frequencies in local neuron clusters are closely aligned in this central narrow bandwidth region (cNB). Response preferences to other input parameters, such as sound intensity and binaural interaction, vary within cNB; however, the source of this variability is unknown. Her...
متن کاملModulation of thalamic auditory neurons by the primary auditory cortex.
The central auditory system consists of the lemniscal and nonlemniscal pathways or systems, which are anatomically and physiologically different from each other. In the thalamus, the ventral division of the medial geniculate body (MGBv) belongs to the lemniscal system, whereas its medial (MGBm) and dorsal (MGBd) divisions belong to the nonlemniscal system. Lemniscal neurons are sharply frequenc...
متن کاملSpecific and nonspecific plasticity of the primary auditory cortex elicited by thalamic auditory neurons.
The ventral and medial divisions of the medial geniculate body (MGBv and MGBm) respectively are the lemniscal and nonlemniscal thalamic auditory nuclei. Lemniscal neurons are narrowly frequency tuned and provide highly specific frequency information to the primary auditory cortex (AI), whereas nonlemniscal neurons are broadly frequency tuned and project widely to auditory cortical areas includi...
متن کاملTonotopic and localized pathways from primary auditory cortex to the central nucleus of the inferior colliculus
Descending projections from the cortex to subcortical structures are critical for auditory plasticity, including the ability for central neurons to adjust their frequency tuning to relevant and meaningful stimuli. We show that focal electrical stimulation of primary auditory cortex in guinea pigs produces excitatory responses in the central nucleus of the inferior colliculus (CNIC) with two ton...
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....................................................................................ii Relevant Publications...................................................................vi Ackowledgements.......................................................................vii Table of
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ژورنال
عنوان ژورنال: Neuroscience
سال: 2008
ISSN: 0306-4522
DOI: 10.1016/j.neuroscience.2007.11.026