Neural coding strategies in auditory cortex Export

@article{citeulike:1272032, abstract = {In contrast to the visual system, the auditory system has longer subcortical pathways and more spiking synapses between the peripheral receptors and the cortex. This unique organization reflects the needs of the auditory system to extract behaviorally relevant information from a complex acoustic environment using strategies different from those used by other sensory systems. The neural representations of acoustic information in auditory cortex can be characterized by three types: (1) isomorphic (faithful) representations of acoustic structures; (2) non-isomorphic transformations of acoustic features and (3) transformations from acoustical to perceptual dimensions. The challenge facing auditory neurophysiologists is to understand the nature of the latter two transformations. In this article, I will review recent studies from our laboratory regarding temporal discharge patterns in auditory cortex of awake marmosets and cortical representations of time-varying signals. Findings from these studies show that (1) firing patterns of neurons in auditory cortex are dependent on stimulus optimality and context and (2) the auditory cortex forms internal representations of sounds that are no longer faithful replicas of their acoustic structures.}, author = {Wang, Xiaoqin}, citeulike-article-id = {1272032}, citeulike-linkout-0 = {http://www.sciencedirect.com/science/article/B6T73-4MWXPVD-2/2/5745d003191e676b75f6b27384d0d7dd}, journal = {Hearing Research}, keywords = {a1, am, auditory, context, marmoset}, posted-at = {2007-09-26 18:02:25}, priority = {2}, title = {Neural coding strategies in auditory cortex}, url = {http://www.sciencedirect.com/science/article/B6T73-4MWXPVD-2/2/5745d003191e676b75f6b27384d0d7dd}, volume = {In Press, Corrected Proof} }

TY - JOUR ID - citeulike:1272032 L3 - citeulike-article-id:1272032 N2 - In contrast to the visual system, the auditory system has longer subcortical pathways and more spiking synapses between the peripheral receptors and the cortex. This unique organization reflects the needs of the auditory system to extract behaviorally relevant information from a complex acoustic environment using strategies different from those used by other sensory systems. The neural representations of acoustic information in auditory cortex can be characterized by three types: (1) isomorphic (faithful) representations of acoustic structures; (2) non-isomorphic transformations of acoustic features and (3) transformations from acoustical to perceptual dimensions. The challenge facing auditory neurophysiologists is to understand the nature of the latter two transformations. In this article, I will review recent studies from our laboratory regarding temporal discharge patterns in auditory cortex of awake marmosets and cortical representations of time-varying signals. Findings from these studies show that (1) firing patterns of neurons in auditory cortex are dependent on stimulus optimality and context and (2) the auditory cortex forms internal representations of sounds that are no longer faithful replicas of their acoustic structures. JF - Hearing Research TI - Neural coding strategies in auditory cortex VL - In Press, Corrected Proof KW - a1 KW - am KW - auditory KW - context KW - marmoset AU - Wang, Xiaoqin UR - http://www.sciencedirect.com/science/article/B6T73-4MWXPVD-2/2/5745d003191e676b75f6b27384d0d7dd ER -