Cortical connectivity and sensory coding Editors summary: Large-scale recordings in vivo have revealed much about how cortical populations encode sensory information, and advances in genetics and circuit-mapping have enabled identification, characterization and control of neuronal circuits. These lines of research are now converging, as reflected in this review by Kenneth Harris and Thomas Mrsic-Flogel, which focuses on how connection patterns in rodent sensory cortex relate to the way in which neurons encode and integrate information with behavioral context. Reference Cortical connectivity and sensory coding Nature 503, 51–58 (07 November 2013) doi:10.1038/nature12654 nature/nature/journal/v503/n7474/full/nature12654.html Abstract The sensory cortex contains a wide array of neuronal types, which are connected together into complex but partially stereotyped circuits. Sensory stimuli trigger cascades of electrical activity through these circuits, causing specific features of sensory scenes to be encoded in the firing patterns of cortical populations. Recent research is beginning to reveal how the connectivity of individual neurons relates to the sensory features they encode, how differences in the connectivity patterns of different cortical cell classes enable them to encode information using different strategies, and how feedback connections from higher-order cortex allow sensory information to be integrated with behavioural context.
Posted on: Sun, 10 Nov 2013 14:37:14 +0000
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