Oro-facial dyskinesia and the sub-commissural part of the globus pallidus in the cat: role of acetylcholine and its interaction with GABA

1989 ◽  
Vol 99 (3) ◽  
pp. 381-385 ◽  
Author(s):  
W. P. J. M. Spooren ◽  
E. Cuypers ◽  
A. R. Cools
Keyword(s):  
Globus Pallidus ◽  
Facial Dyskinesia

Insights on the role of external globus pallidus in controlling absence seizures

2021 ◽  
Vol 135 ◽  
pp. 78-90
Author(s):  
Mingming Chen ◽  
Yajie Zhu ◽  
Renping Yu ◽  
Yuxia Hu ◽  
Hong Wan ◽  
...  
Keyword(s):  
Globus Pallidus ◽  
Absence Seizures

scholarly journals Dynamic Encoding of Effort and Reward throughout the Execution of Action by External Globus Pallidus Neurons in Monkeys

2018 ◽  
Vol 30 (8) ◽  
pp. 1130-1144 ◽  
Author(s):  
Simon Nougaret ◽  
Sabrina Ravel
Keyword(s):  
Globus Pallidus ◽  
Related Information ◽  
Motor Information ◽  
Expected Benefits ◽  
External Part ◽  
Types Of Information ◽  
Goal Directed Behavior ◽  
Task Parameters ◽  
Different Levels

Humans and animals must evaluate the costs and expected benefits of their actions to make adaptive choices. Prior studies have demonstrated the involvement of the basal ganglia in this evaluation. However, little is known about the role of the external part of the globus pallidus (GPe), which is well positioned to integrate motor and reward-related information, in this process. To investigate this role, the activity of 126 neurons was recorded in the associative and limbic parts of the GPe of two monkeys performing a behavioral task in which different levels of force were required to obtain different amounts of liquid reward. The results first revealed that the activity of associative and limbic GPe neurons could be modulated not only by cognitive and limbic but also motor information at the same time, both during a single period or during different periods throughout the trial, mainly in an independent way. Moreover, as a population, GPe neurons encoded these types of information dynamically throughout the trial, when each piece of information was the most relevant for the achievement of the action. Taken together, these results suggest that GPe neurons could be dedicated to the parallel monitoring of task parameters essential to adjusting and maintaining goal-directed behavior.

scholarly journals Consider Role of Glutamatergic Habenula-projecting Globus Pallidus in OCD

2019 ◽  
Vol 52 (04) ◽  
pp. 203-204
Author(s):  
Anton J.M. Loonen ◽  
Svetlana A. Ivanova
Keyword(s):  
Obsessive Compulsive Disorder ◽  
Globus Pallidus ◽  
Review Article ◽  
Specific Role ◽  
Future Research ◽  
Glutamatergic System ◽  
Obsessive Compulsive ◽  
Compulsive Disorder ◽  
Primary Relationship

AbstractRecently, in a review article in this journal, Vlček and colleagues described the putative role played by the glutamatergic system in obsessive-compulsive disorder (OCD) and how this might explain the effects of certain treatments. They describe a neuroanatomical model, which includes a specific role of the amygdala-hippocampus complex (AHC) and would complete the classic cortico-striatal-thalamo-cortical (CSTC) mechanism of OCD. The role of the AHC can perhaps be better understood when considering its ancient relationship to the rest of the forebrain of mammals. This leads to distinguishing between primary (lamprey-like), secondary (amphibian-like) and tertiary (mammal-like) parts of the forebrain including amygdaloid, ventral extrapyramidal and dorsal extrapyramidal systems, respectively. A specific role in OCD may be played by the habenula-projecting part of the pallidum, which evaluated the result of behaviour in human’s earliest vertebrate ancestors. The addition of these primary relationship to the authors’ description could be fruitful when planning the future research, as suggested by them.

scholarly journals The role of the human globus pallidus in Huntington's disease

2016 ◽  
Vol 26 (6) ◽  
pp. 741-751 ◽  
Author(s):  
Malvindar K. Singh-Bains ◽  
Henry J. Waldvogel ◽  
Richard L. M. Faull
Keyword(s):  
Huntington's Disease ◽  
Huntington’S Disease ◽  
Globus Pallidus

scholarly journals Basal ganglia and cerebellar contributions to vocal emotion processing: a high resolution fMRI study

2020 ◽  
Author(s):  
Leonardo Ceravolo ◽  
Sascha Frühholz ◽  
Jordan Pierce ◽  
Didier Grandjean ◽  
Julie Péron
Keyword(s):  
Basal Ganglia ◽  
High Resolution ◽  
Globus Pallidus ◽  
Subthalamic Nucleus ◽  
Effective Connectivity ◽  
Emotion Processing ◽  
Brain Regions ◽  
Fmri Study ◽  
Vocal Emotion

AbstractUntil recently, brain networks underlying emotional voice prosody decoding and processing were focused on modulations in primary and secondary auditory, ventral frontal and prefrontal cortices, and the amygdala. Growing interest for a specific role of the basal ganglia and cerebellum was recently brought into the spotlight. In the present study, we aimed at characterizing the role of such subcortical brain regions in vocal emotion processing, at the level of both brain activation and functional and effective connectivity, using high resolution functional magnetic resonance imaging. Variance explained by low-level acoustic parameters (fundamental frequency, voice energy) was also modelled. Wholebrain data revealed expected contributions of the temporal and frontal cortices, basal ganglia and cerebellum to vocal emotion processing, while functional connectivity analyses highlighted correlations between basal ganglia and cerebellum, especially for angry voices. Seed-to-seed and seed-to-voxel effective connectivity revealed direct connections within the basal ganglia ̶ especially between the putamen and external globus pallidus ̶ and between the subthalamic nucleus and the cerebellum. Our results speak in favour of crucial contributions of the basal ganglia, especially the putamen, external globus pallidus and subthalamic nucleus, and several cerebellar lobules and nuclei for an efficient decoding of and response to vocal emotions.

scholarly journals Alcohol Effects on Globus Pallidus Connectivity: Role of Impulsivity and Binge Drinking

2019 ◽  
Author(s):  
Samantha J. Fede ◽  
Karina P. Abrahao ◽  
Carlos R. Cortes ◽  
Erica N. Grodin ◽  
Melanie L. Schwandt ◽  
...  
Keyword(s):  
Binge Drinking ◽  
Globus Pallidus ◽  
Heavy Drinking ◽  
Neural Mechanism ◽  
Neuronal Firing ◽  
Magnetic Resonance Imaging Scan ◽  
Drinking Patterns ◽  
Alcohol Effects ◽  
Induced Changes

AbstractDespite the harm caused by binge drinking, the neural mechanisms leading to risky and disinhibited intoxication-related behaviors are not well understood. Evidence suggests that the globus pallidus externus (GPe), a substructure within the basal ganglia, participates in inhibitory control processes, as examined in stop-signaling tasks. In fact, studies in rodents have revealed that alcohol can change GPe activity by decreasing neuronal firing rates, suggesting that the GPe may have a central role in explaining impulsive behaviors and failures of inhibition that occur during binge drinking. In this study, twenty-five healthy volunteers underwent intravenous alcohol infusion to achieve a blood alcohol level of 0.08 g/dl, which is equivalent to a binge drinking episode. A resting state functional magnetic resonance imaging scan was collected prior to the infusion and at binge-level exposure. Functional connectivity analysis was used to investigate the association between alcohol-induced changes in GPe connectivity, drinking behaviors, and impulsivity traits. We found that individuals with greater number of drinks or heavy drinking days in the recent past had greater alcohol-induced deficits in GPe connectivity, particularly to the striatum. Our data also indicated an association between impulsivity and alcohol-induced deficits in GPe – frontal/precentral connectivity. Moreover, alcohol induced changes in GPe-amygdala circuitry suggested greater vulnerabilities to stress-related drinking in some individuals. Taken together, these findings suggest that alcohol may interact with impulsive personality traits and drinking patterns to drive alterations in GPe circuitry associated with behavioral inhibition, possibly indicating a neural mechanism by which binge drinking could lead to impulsive behaviors.

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