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Carl Petersen

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Related publications (86)

Page 4 of 5

Cell-type-specific nicotinic input disinhibits mouse barrel cortex during active sensing

Carl Petersen, Sylvain Crochet, Célia Roxane Gasselin

Fast synaptic transmission relies upon the activation of ionotropic receptors by neurotransmitter release to evoke postsynaptic potentials. Glutamate and GABA play dominant roles in driving highly dynamic activity in synaptically connected neuronal circuit ...

CELL PRESS2021

Motor control by sensory cortex

Carl Petersen, Varun Sreenivasan, Céline Matéo

Classical studies of mammalian movement control define a prominent role for the primary motor cortex. Investigating the mouse whisker system, we found an additional and equally direct pathway for cortical motor control driven by the primary somatosensory c ...

American Association for the Advancement of Science2010

Cell class-specific long-range axonal projections of neurons in mouse whisker-related somatosensory cortices

Lucas Téo Délez, Carl Petersen, Sylvain Crochet, Keita Tamura, Yanqi Liu, Pol Bech Vilaseca

Long-range axonal projections of diverse classes of neocortical excitatory neurons likely contribute to brain-wide interactions processing sensory, cognitive and motor signals. Here, we performed light-sheet imaging of fluorescently labeled axons from gene ...

2024

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

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

Whisking-Related Changes in Neuronal Firing and Membrane Potential Dynamics in the Somatosensory Thalamus of Awake Mice

Carl Petersen

The thalamus transmits sensory information to the neocortex and receives neocortical, subcortical, and neuromodulatory inputs. Despite its obvious importance, surprisingly little is known about thalamic function in awake animals. Here, using intracellular ...

Elsevier2015

Movement Initiation Signals in Mouse Whisker Motor Cortex

Carl Petersen, Sylvain Crochet, Katia Galan, Varun Sreenivasan, Vahid Esmaeili, Taro Kiritani

Frontal cortex plays a central role in the control of voluntary movements, which are typically guided by sensory input. Here, we investigate the function of mouse whisker primary motor cortex (wM1), a frontal region defined by dense innervation from whiske ...

Cell Press2016

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

Evoking spontaneous activity

Carl Petersen

In this issue of Neuron, MacLean et al. report that thalamic stimulation can evoke spatiotemporal sequences of neocortical neuronal activity similar to spontaneous UP states. This could suggest that the patterns of activity associated with the processing o ...

2005

Inhibition Patterns the Whisking Rhythm

Carl Petersen, Varun Sreenivasan

In this issue of Neuron, Deschenes et al. (2016) propose that rhythmic inhibition of whisker motor neurons is a key pattern generator underlying exploratory whisking. The inhibitory premotor neurons located in the brain-stem reticular formation are synchro ...

Cell Press2016

Cortical circuits for transforming whisker sensation into goal-directed licking

Carl Petersen, Sylvain Crochet, Vahid Esmaeili, Georgios Foustoukos, Keita Tamura, Anastasiia Oryshchuk

Animals can learn to use sensory stimuli to generate motor actions in order to obtain rewards. However, the precise neuronal circuits driving learning and execution of a specific goal-directed sensory-to-motor transformation remain to be elucidated. Here, ...

2020

Toward Biophysical Mechanisms of Neocortical Computation after 50 Years of Barrel Cortex Research

Graham Knott, Carl Petersen, Felix Schürmann

2021

The Excitatory Neuronal Network of the C2 Barrel Column in Mouse Primary Somatosensory Cortex

Carl Petersen, Sandrine Lefort, Christian Tomm, Juan-Carlos Sarria

Local microcircuits within neocortical columns form key determinants of sensory processing. Here, we investigate the excitatory synaptic neuronal network of an anatomically defined cortical column, the C2 barrel column of mouse primary somatosensory cortex ...

2009

Cell-type specific function of GABAergic neurons in layers 2 and 3 of mouse barrel cortex

Carl Petersen

GABAergic neurons are a minor fraction of the neocortical neuronal population, but they are highly diverse in their features. The GABAergic neurons can be divided into three largely non-overlapping groups, defined through the expression of ionotropic serot ...

Current Biology Ltd2014

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

Wulfram Gerstner, Carl Petersen, Laurent Badel, 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

Advances in understanding cortical function through combined voltage-sensitive dye imaging, whole-cell recordings, and analysis of cellular morphology

Carl Petersen

Springer2006

Carl Petersen

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Cell-type-specific nicotinic input disinhibits mouse barrel cortex during active sensing

Motor control by sensory cortex

Cell class-specific long-range axonal projections of neurons in mouse whisker-related somatosensory cortices

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

Whisking-Related Changes in Neuronal Firing and Membrane Potential Dynamics in the Somatosensory Thalamus of Awake Mice

Movement Initiation Signals in Mouse Whisker Motor Cortex

The functional organization of the barrel cortex

Evoking spontaneous activity

Inhibition Patterns the Whisking Rhythm

Cortical circuits for transforming whisker sensation into goal-directed licking

Toward Biophysical Mechanisms of Neocortical Computation after 50 Years of Barrel Cortex Research

The Excitatory Neuronal Network of the C2 Barrel Column in Mouse Primary Somatosensory Cortex

Cell-type specific function of GABAergic neurons in layers 2 and 3 of mouse barrel cortex

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

Advances in understanding cortical function through combined voltage-sensitive dye imaging, whole-cell recordings, and analysis of cellular morphology

Synaptic Mechanisms Of Sensory Perception

Pioneers in Neurophotonics: Special Section Honoring Professor Amiram Grinvald

Higher Nervous Functions

Time-Correlated Fluorescence Microscopy using a Room Temperature Solid-State Single Photon Sensor

A practical guide: whole-cell recording and voltage-sensitive dye imaging in vivo