title: Correlations decrease with propagation of spiking activity in the mouse barrel cortex.
abstract: Propagation of suprathreshold spiking activity through neuronal populations is important for the function of the central nervous system. Neural correlations have an impact on cortical function particularly on the signaling of information and propagation of spiking activity. Therefore we measured the change in correlations as suprathreshold spiking activity propagated between recurrent neuronal networks of the mammalian cerebral cortex. Using optical methods we recorded spiking activity from large samples of neurons from two neural populations simultaneously. The results indicate that correlations decreased as spiking activity propagated from layer 4 to layer 2/3 in the rodent barrel cortex.
authors.affiliation: Center for Learning and Memory, Section of Neurobiology, The Institute for Neuroscience, The University of Texas at Austin Austin, TX, USA.
authors.forename: Gayathri Nattar
authors.initials: GN
authors.lastname: Ranganathan
authors.forename: Helmut Joachim
authors.initials: HJ
authors.lastname: Koester