Alterations in neuronal activity in basal ganglia-thalamocortical circuits in the parkinsonian state

A Galvan, A Devergnas, T Wichmann - Frontiers in neuroanatomy, 2015 - frontiersin.org
In patients with Parkinson's disease and in animal models of this disorder, neurons in the
basal ganglia and related regions in thalamus and cortex show changes that can be …

[HTML][HTML] Primary motor cortex in Parkinson's disease: Functional changes and opportunities for neurostimulation

CF Underwood, LC Parr-Brownlie - Neurobiology of Disease, 2021 - Elsevier
Movement abnormalities of Parkinson's disease (PD) arise from disordered neural activity in
multiple interconnected brain structures. The planning and execution of movement requires …

Cortical pattern generation during dexterous movement is input-driven

BA Sauerbrei, JZ Guo, JD Cohen, M Mischiati, W Guo… - Nature, 2020 - nature.com
The motor cortex controls skilled arm movement by sending temporal patterns of activity to
lower motor centres. Local cortical dynamics are thought to shape these patterns throughout …

Basal ganglia circuits for action specification

J Park, LT Coddington… - Annual review of …, 2020 - annualreviews.org
Behavior is readily classified into patterns of movements with inferred common goals—
actions. Goals may be discrete; movements are continuous. Through the careful study of …

Movements during sleep reveal the developmental emergence of a cerebellar-dependent internal model in motor thalamus

JC Dooley, G Sokoloff, MS Blumberg - Current Biology, 2021 - cell.com
With our eyes closed, we can track a limb's moment-to-moment location in space. If this
capacity relied solely on sensory feedback from the limb, we would always be a step behind …

Thalamocortical axonal activity in motor cortex exhibits layer-specific dynamics during motor learning

YH Tanaka, YR Tanaka, M Kondo, SI Terada… - Neuron, 2018 - cell.com
The thalamus is the hub through which neural signals are transmitted from the basal ganglia
and cerebellum to the neocortex. However, thalamocortical axonal activity during motor …

[HTML][HTML] The primary motor cortex: the hub of motor learning in rodents

C Lee, Y Kim, BK Kaang - Neuroscience, 2022 - Elsevier
The primary motor cortex, a dynamic center for overall motion control and decision making,
undergoes significant alterations upon neural stimulation. Over the last few decades, data …

Distinct populations of motor thalamic neurons encode action initiation, action selection, and movement vigor

M Gaidica, A Hurst, C Cyr… - Journal of …, 2018 - Soc Neuroscience
Motor thalamus (Mthal) comprises the ventral anterior, ventral lateral, and ventral medial
thalamic nuclei in rodents. This subcortical hub receives input from the basal ganglia (BG) …

Reduced thalamic excitation to motor cortical pyramidal tract neurons in parkinsonism

L Chen, S Daniels, R Dvorak, HY Chu - Science Advances, 2023 - science.org
Degeneration of midbrain dopaminergic (DA) neurons alters the connectivity and
functionality of the basal ganglia-thalamocortical circuits in Parkinson's disease (PD) …

An automated rat single pellet reaching system with high-speed video capture

DJ Ellens, M Gaidica, A Toader, S Peng, S Shue… - Journal of Neuroscience …, 2016 - Elsevier
Background Single pellet reaching is an established task for studying fine motor control in
which rats reach for, grasp, and eat food pellets in a stereotyped sequence. Most …