Carl Petersen

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Publications associées (90)

Extracting non-linear integrate-and-fire models from experimental data using dynamic I – V curves

Wulfram Gerstner, Carl Petersen, Laurent Badel, Thomas Berger, Sandrine Lefort

The dynamic I–V curve method was recently introduced for the efficient experimental generation of reduced neuron models. The method extracts the response properties of a neuron while it is subject to a naturalistic stimulus that mimics in vivo-like fluctua ...

Springer Verlag2008

Dynamic I-V curves are reliable predictors of naturalistic pyramidal-neuron voltage traces

Wulfram Gerstner, Carl Petersen, Laurent Badel, Sandrine Lefort, Romain Brette

Neuronal response properties are typically probed by intracellular measurements of current-voltage (I-V) relationships during application of current or voltage steps. Here we demonstrate the measurement of a novel I-V curve measured while the neuron exhibi ...

American Physiological Society2008

Internal brain state regulates membrane potential synchrony in barrel cortex of behaving mice

Carl Petersen, James Poulet

Internal brain states form key determinants for sensory perception, sensorimotor coordination and learning. A prominent reflection of different brain states in the mammalian central nervous system is the presence of distinct patterns of cortical synchrony, ...

Nature Publishing Group2008

Layer, column and cell-type specific genetic manipulation in mouse barrel cortex

Carl Petersen, Rachel Aronoff

Sensory information is processed in distributed neuronal networks connected by intricate synaptic circuits. Studies of the rodent brain can provide insight into synaptic mechanisms of sensory perception and associative learning. In particular, the mouse wh ...

Frontiers Research Foundation2008

Sensory Systems

Carl Petersen

Blackwell2007

Time-correlated Two-photon Fluorescence Imaging with Arrays of Solid-state Single Photon Detector

Edoardo Charbon, Carl Petersen, Cristiano Niclass, Marek Gersbach, Dmitri Boiko

This paper reports on our progress in developing two-photon fluorescence lifetime imaging microscopy (FLIM) based on time-correlated single-photon counting (TCSPC). The core of the system is a 2D array of solid-state single-photon avalanche diodes (SPADs) ...

2007

Combined voltage and calcium epifluorescence imaging in vitro and in vivo reveals subthreshold and suprathreshold dynamics of mouse barrel cortex

Carl Petersen, Sylvain Crochet, Sandrine Lefort, Thomas Berger

Cortical dynamics can be imaged at high spatiotemporal resolution with voltage-sensitive dyes (VSDs) and calcium-sensitive dyes (CaSDs). We combined these two imaging techniques using epifluorescence optics together with whole cell recordings to measure th ...

2007

Higher Nervous Functions

Carl Petersen

Blackwell2007

Layer- and column-specific knockout of NMDA receptors in pyramidal neurons of the mouse barrel cortex

Carl Petersen, Rachel Aronoff

Viral vectors injected into the mouse brain offer the possibility for localized genetic modifications in a highly controlled manner. Lentivector injection into mouse neocortex transduces cells within a diameter of approximately 200mum, which closely matche ...

Frontiers Research Foundation2007

The functional organization of the barrel cortex

Carl Petersen

The tactile somatosensory pathway from whisker to cortex in rodents provides a well-defined system for exploring the link between molecular mechanisms, synaptic circuits, and behavior. The primary somatosensory cortex has an exquisite somatotopic map where ...

2007

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Combined voltage and calcium epifluorescence imaging in vitro and in vivo reveals subthreshold and suprathreshold dynamics of mouse barrel cortex

Carl Petersen, Sylvain Crochet, Sandrine Lefort, Thomas Berger

2007