Sparse coding of natural communication signals in midbrain neurons
نویسندگان
چکیده
منابع مشابه
Temporally selective processing of communication signals by auditory midbrain neurons.
Perception of the temporal structure of acoustic signals contributes critically to vocal signaling. In the aquatic clawed frog Xenopus laevis, calls differ primarily in the temporal parameter of click rate, which conveys sexual identity and reproductive state. We show here that an ensemble of auditory neurons in the laminar nucleus of the torus semicircularis (TS) of X. laevis specializes in en...
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While peripheral sensory neurons respond to natural stimuli with a broad range of spatiotemporal frequencies, central neurons instead respond sparsely to specific features in general. The nonlinear transformations leading to this emergent selectivity are not well understood. Here we characterized how the neural representation of stimuli changes across successive brain areas, using the electrose...
متن کاملTemporal coding of concurrent acoustic signals in auditory midbrain.
A fundamental problem faced by the auditory system of humans and other vertebrates is the segregation of concurrent vocal signals. To discriminate between individual vocalizations, the auditory system must extract information about each signal from the single temporal waveform that results from the summation of the simultaneous acoustic signals. Here, we present the first report of midbrain cod...
متن کاملTemporally selective processing of communication signals by auditory midbrain 1 neurons 2 3 4
36 Perception of the temporal structure of acoustic signals contributes critically to vocal 37 signaling. In the aquatic clawed frog Xenopus laevis, calls differ primarily in the 38 temporal parameter of click rate, which conveys sexual identity and reproductive state. 39 We show here that an ensemble of auditory neurons in the laminar nucleus of the torus 40 semicircularis (TS) of X. laevis sp...
متن کاملCoding of Naturalistic Stimuli by Auditory Midbrain Neurons
It is known that humans can make finer discriminations between familiar sounds (e.g. syllables) than between unfamiliar ones (e.g. different noise segments). Here we show that a corresponding enhancement is present in early auditory processing stages. Based on previous work which demonstrated that natural sounds had robust statistical properties that could be quantified, we hypothesize that the...
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ژورنال
عنوان ژورنال: BMC Neuroscience
سال: 2009
ISSN: 1471-2202
DOI: 10.1186/1471-2202-10-s1-o3