Carl Petersen

Publications associées (90)

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Imaging the Dynamics of Neocortical Population Activity in Behaving and Freely Moving Mammals

Carl Petersen

The development of functional imaging techniques applicable to neuroscience and covering a wide range of spatial and temporal scales has greatly facilitated the exploration of the relationships between cognition, behaviour and electrical brain activity. Fo ...

Springer-Verlag Berlin2015

Cortical Sensorimotor Reverberations

Carl Petersen, Sylvain Crochet

In this issue of Neuron, Manita et al. (2015) report that reciprocal excitatory interactions between higher-order frontal motor cortex and primary sensorimotor cortex might play a key role in hindlimb sensory perception in mice. In this issue of Neuron, Ma ...

Cell Press2015

In Vivo Measurement of Cell-Type-Specific Synaptic Connectivity and Synaptic Transmission in Layer 2/3 Mouse Barrel Cortex

Carl Petersen, Aurélie Pala

Intracellular recordings of membrane potential in vitro have defined fundamental properties of synaptic communication. Much less is known about the properties of synaptic connectivity and synaptic transmission in vivo. Here, we combined single-cell opto-ge ...

Cell Press2015

Cell-Type-Specific Sensorimotor Processing in Striatal Projection Neurons during Goal-Directed Behavior

Carl Petersen, Sylvain Crochet, Tanya C Sippy, Damien Lapray

Goal-directed sensorimotor transformation drives important aspects of mammalian behavior. The striatum is thought to play a key role in reward-based learning and action selection, receiving glutamatergic sensorimotor signals and dopaminergic reward signals ...

Cell Press2015

Ultrastructural analysis of adult mouse neocortex comparing aldehyde perfusion with cryo fixation

Carl Petersen, Graham Knott, Natalya Korogod

Analysis of brain ultrastructure using electron microscopy typically relies on chemical fixation. However, this is known to cause significant tissue distortion including a reduction in the extracellular space. Cryo fixation is thought to give a truer repre ...

Elife Sciences Publications Ltd2015

Parallel pathways from motor and somatosensory cortex for controlling whisker movements in mice

Carl Petersen, Varun Sreenivasan

Mice can gather tactile sensory information by actively moving their whiskers to palpate objects in their immediate surroundings. Whisker sensory perception therefore requires integration of sensory and motor information, which occurs prominently in the ne ...

Wiley-Blackwell2015

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

From Perception to Action: A Spatiotemporal Cortical Map

Carl Petersen, Sylvain Crochet

Cell Press2014

Connection-type-specific biases make uniform random network models consistent with cortical recordings

Wulfram Gerstner, Carl Petersen, Michael Avermann, Tim Vogels, Christian Tomm

Uniform random sparse network architectures are ubiquitous in computational neuroscience, but the implicit hypothesis that they are a good representation of real neuronal networks has been met with skepticism. Here we used two experimental data sets, a stu ...

American Physiological Society2014

Cholinergic Signals in Mouse Barrel Cortex during Active Whisker Sensing

Carl Petersen, Sylvain Crochet, Yves Emile Alfred Kremer, Emmanuel Albert Eggermann

Internal brain states affect sensory perception, cognition, and learning. Many neocortical areas exhibit changes in the pattern and synchrony of neuronal activity during quiet versus active behaviors. Active behaviors are typically associated with desynchr ...

Elsevier2014

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Imaging the Dynamics of Neocortical Population Activity in Behaving and Freely Moving Mammals

Carl Petersen

Springer-Verlag Berlin2015

Cortical Sensorimotor Reverberations

Carl Petersen, Sylvain Crochet

Cell Press2015

In Vivo Measurement of Cell-Type-Specific Synaptic Connectivity and Synaptic Transmission in Layer 2/3 Mouse Barrel Cortex

Carl Petersen, Aurélie Pala

Cell Press2015