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How the firing of neurons in a population generates cortical representations has not been fully elucidated, but a new study shows that population activity can be understood in terms of the degree of coupling of the spiking of a single neuron to the spiking of the overall population.
The probabilistic behaviour ofCaenorhabditis elegansin response to a fixed olfactory stimulus arises owing to variability in the activity state of the neural circuit that receives the sensory input.
This study shows that the circadian geneClockdrives the maturation of parvalbumin-expressing interneuron networks, and therefore critical period plasticity, in the mouse visual cortex.
A novel functional MRI technique that tracks the pattern of cortical activation associated with specific memories reveals that 'competitor' memories in the ventral visual cortex are actively suppressed by remembering.