Thomas Brochier
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View article: Energy constraints determine the selection of reaching movement trajectories in macaque monkeys
Energy constraints determine the selection of reaching movement trajectories in macaque monkeys Open
Reaching movements, while seemingly simple, involve complex motor control mechanisms that select specific trajectories from infinite possibilities. Despite the inherent variability in volitional movements, both humans and monkeys frequentl…
View article: Voice identity invariance by anterior temporal lobe neurons
Voice identity invariance by anterior temporal lobe neurons Open
The ability to recognize speakers by their voice despite acoustical variation plays a substantial role in primate social interactions. Although neurons in the macaque anterior temporal lobe (ATL) show invariance to face viewpoint, whether …
View article: Spontaneous spiking statistics form unique area-specific fingerprints and reflect the hierarchy of cerebral cortex
Spontaneous spiking statistics form unique area-specific fingerprints and reflect the hierarchy of cerebral cortex Open
The cerebral cortex is hierarchically organised from sensory to higher cognitive areas 1–4 . Several dynamical 5–8 and anatomical 1–4,8 measures, such as timescales and neurotransmitter receptor expression, have independently been linked t…
View article: Dual temporal codes for voice identity in the primate auditory cortex
Dual temporal codes for voice identity in the primate auditory cortex Open
Recognition of vocal identity is essential for primate social behavior, yet the neural mechanisms supporting this ability remain poorly understood. Cognitive models suggest that the brain may represent identity based on an average voice pr…
View article: Voice identity invariance by anterior temporal lobe neurons
Voice identity invariance by anterior temporal lobe neurons Open
The ability to recognize speakers by their voice despite acoustical variation plays a significant role in primate social interactions. While neurons in the macaque anterior temporal lobe (ATL) show invariance to face viewpoint, whether the…
View article: Long lasting argon neuroprotection in a non-human primate model of transient endovascular ischemic stroke
Long lasting argon neuroprotection in a non-human primate model of transient endovascular ischemic stroke Open
In the past decade, noble gases have emerged as highly promising neuroprotective agents. Previous studies have demonstrated the efficacy of argon neuroprotection in rodent models of cerebral ischemia. The objective of the present pre-clini…
View article: Brain Charts for the Rhesus Macaque Lifespan
Brain Charts for the Rhesus Macaque Lifespan Open
Recent efforts to chart human brain growth across the lifespan using large-scale MRI data have provided reference standards for human brain development. However, similar models for nonhuman primate (NHP) growth are lacking. The rhesus maca…
View article: Brain Charts for the Rhesus Macaque Lifespan
Brain Charts for the Rhesus Macaque Lifespan Open
Recent efforts to chart human brain growth across the lifespan using large-scale MRI data have provided reference standards for human brain development. However, similar models for nonhuman primate (NHP) growth are lacking. The rhesus maca…
View article: Neural manifolds in V1 change with top-down signals from V4 targeting the foveal region
Neural manifolds in V1 change with top-down signals from V4 targeting the foveal region Open
High-dimensional brain activity is often organized into lower-dimensional neural manifolds. However, the neural manifolds of the visual cortex remain understudied. Here, we study large-scale multi-electrode electrophysiological recordings …
View article: A population of neurons selective for human voice in the monkey brain
A population of neurons selective for human voice in the monkey brain Open
Many animals can extract useful information from the vocalizations of other species. Neuroimaging studies have evidenced areas sensitive to conspecific vocalizations in the cerebral cortex of primates, but how these areas process heterospe…
View article: Argon neuroprotection in a non-human primate model of transient endovascular ischemic stroke
Argon neuroprotection in a non-human primate model of transient endovascular ischemic stroke Open
Background Previous studies have demonstrated the efficacy of argon neuroprotection in rodent models of cerebral ischemia. The objective of the present study was to confirm a potential neuroprotective effect of argon in a non-human primate…
View article: Non-instructed Motor Skill Learning in Monkeys: Insights from Deep Reinforcement Learning Models
Non-instructed Motor Skill Learning in Monkeys: Insights from Deep Reinforcement Learning Models Open
In the field of motor learning, few studies have addressed the case of non-instructed movement sequences learning, as they require long periods of training and data acquisition, and are complex to interpret. In contrast, such problems are …
View article: Neural manifolds in V1 change with top-down signals from V4 targeting the foveal region
Neural manifolds in V1 change with top-down signals from V4 targeting the foveal region Open
High-dimensional brain activity is often organized into lower-dimensional neural manifolds. However, the neural manifolds of the visual cortex remain understudied. Here, we study large-scale multielectrode electrophysiological recordings o…
View article: Parallel movement planning is achieved via an optimal preparatory state in motor cortex
Parallel movement planning is achieved via an optimal preparatory state in motor cortex Open
How do patterns of neural activity in the motor cortex contribute to the planning of a movement? A recent theory developed for single movements proposes that the motor cortex acts as a dynamical system whose initial state is optimized duri…
View article: Meirhaeghe2023
Meirhaeghe2023 Open
Data and code associated with: Meirhaeghe, Riehle & Brochier (2022) Parallel planning through an optimal neural subspace in motor cortex. bioRxiv. https://doi.org/10.1101/2022.07.09.499417
View article: Meirhaeghe2023
Meirhaeghe2023 Open
Data and code associated with: Meirhaeghe, Riehle & Brochier (2022) Parallel planning through an optimal neural subspace in motor cortex. bioRxiv. https://doi.org/10.1101/2022.07.09.499417
View article: Parallel planning through an optimal neural subspace in motor cortex
Parallel planning through an optimal neural subspace in motor cortex Open
Summary How do patterns of neural activity in motor cortex contribute to the planning of a movement? A recent theory developed for single movements proposes that motor cortex acts as a dynamical system whose initial state is optimized duri…
View article: Global organization of neuronal activity only requires unstructured local connectivity
Global organization of neuronal activity only requires unstructured local connectivity Open
Modern electrophysiological recordings simultaneously capture single-unit spiking activities of hundreds of neurons spread across large cortical distances. Yet, this parallel activity is often confined to relatively low-dimensional manifol…
View article: On the Complexity of Resting State Spiking Activity in Monkey Motor Cortex
On the Complexity of Resting State Spiking Activity in Monkey Motor Cortex Open
Resting state has been established as a classical paradigm of brain activity studies, mostly based on large-scale measurements such as functional magnetic resonance imaging or magneto- and electroencephalography. This term typically refers…
View article: Global organization of neuronal activity only requires unstructured local connectivity
Global organization of neuronal activity only requires unstructured local connectivity Open
Modern electrophysiological recordings simultaneously capture single-unit spiking activities of hundreds of neurons spread across large cortical distances. Yet this massively parallel activity is often confined to relatively low-dimensiona…
View article: On the complexity of resting state spiking activity in monkey motor cortex
On the complexity of resting state spiking activity in monkey motor cortex Open
Resting state has been established as a classical paradigm of brain activity studies, mostly based on large scale measurements such as fMRI or M/EEG. This term typically refers to a behavioral state characterized by the absence of any task…
View article: Is there an Intrinsic Relationship between LFP Beta Oscillation Amplitude and Firing Rate of Individual Neurons in Macaque Motor Cortex?
Is there an Intrinsic Relationship between LFP Beta Oscillation Amplitude and Firing Rate of Individual Neurons in Macaque Motor Cortex? Open
The properties of motor cortical local field potential (LFP) beta oscillations have been extensively studied. Their relationship to the local neuronal spiking activity was also addressed. Yet, whether there is an intrinsic relationship bet…
View article: Macaca mulatta structural and diffusion weighted MRI data
Macaca mulatta structural and diffusion weighted MRI data Open
The AMU dataset includes structural and diffusion weighted MRI data from 4 Macaca mulatta monkeys. The data is provided both as a directory structure compressed as all_the_data.zip, and as individual files. The correspondence between the d…
View article: Macaca mulatta structural and diffusion weighted MRI data
Macaca mulatta structural and diffusion weighted MRI data Open
The AMU dataset includes structural and diffusion weighted MRI data from 4 Macaca mulatta monkeys. The data is provided both as a directory structure compressed as all_the_data.zip, and as individual files. The correspondence between the d…
View article: Is there an intrinsic relationship between LFP beta oscillation amplitude and firing rate of individual neurons in monkey motor cortex?
Is there an intrinsic relationship between LFP beta oscillation amplitude and firing rate of individual neurons in monkey motor cortex? Open
It is a long-standing controversial issue whether an intrinsic relationship between the local field potential (LFP) beta oscillation amplitude and the spike rate of individual neurons in the motor cortex exists. Beta oscillations are promi…
View article: Quantitative comparison of a mesocircuit model with resting state activity in the macaque motor cortex
Quantitative comparison of a mesocircuit model with resting state activity in the macaque motor cortex Open
We aim to derive a full-scale spiking network model [1,2] of part of the macaque motor cortex that statistically reproduces experimentally observed dynamics. For that matter we designed a validation workflow using the Python module Network…