کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4322923 1291742 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reduction of Information Redundancy in the Ascending Auditory Pathway
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب سلولی و مولکولی
پیش نمایش صفحه اول مقاله
Reduction of Information Redundancy in the Ascending Auditory Pathway
چکیده انگلیسی

SummaryInformation processing by a sensory system is reflected in the changes in stimulus representation along its successive processing stages. We measured information content and stimulus-induced redundancy in the neural responses to a set of natural sounds in three successive stations of the auditory pathway—inferior colliculus (IC), auditory thalamus (MGB), and primary auditory cortex (A1). Information about stimulus identity was somewhat reduced in single A1 and MGB neurons relative to single IC neurons, when information is measured using spike counts, latency, or temporal spiking patterns. However, most of this difference was due to differences in firing rates. On the other hand, IC neurons were substantially more redundant than A1 and MGB neurons. IC redundancy was largely related to frequency selectivity. Redundancy reduction may be a generic organization principle of neural systems, allowing for easier readout of the identity of complex stimuli in A1 relative to IC.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 51, Issue 3, 3 August 2006, Pages 359–368
نویسندگان
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