Results 11 to 20 of about 27,335,908 (329)
Basal ganglia calcification [PDF]
A 65-year-old man presented to the emergency room after a fall, sustaining a head injury. A CT of the head showed diffuse, symmetric parenchymal calcifications involving the thalami globus palladi and caudate heads (figures 1 and 2). Detailed evaluation revealed a long-standing history of muscle cramps, involuntary choreiform movements and gradual ...
Rushad Patell+3 more
openaire +3 more sources
The basal ganglia and the cerebellum in human emotion
The basal ganglia (BG) and the cerebellum historically have been relegated to a functional role in producing or modulating motor output. Recent research, however, has emphasized the importance of these subcortical structures in multiple functional ...
Jordan E. Pierce, J. Péron
semanticscholar +1 more source
The basal ganglia and apraxia [PDF]
Ever since Liepmann's original descriptions at the beginning of the century apraxia has usually been attributed to damage confined to the cerebral cortex and/or cortico-cortical connecting pathways. However, there have been suggestions that apraxia can be due to deep subcortical lesions, which raises the question as to whether damage to the basal ...
Peter P. Pramstaller, C. David Marsden
openaire +3 more sources
Biases in facial and vocal emotion recognition in chronic schizophrenia
There has been extensive research on impaired emotion recognition in schizophrenia in the facial and vocal modalities. The literature points to biases toward non-relevant emotions for emotional faces but few studies have examined biases in emotional ...
Thibaut eDondaine+11 more
doaj +1 more source
Basal ganglia role in learning rewarded actions and executing previously learned choices: Healthy and diseased states [PDF]
The basal ganglia (BG) is a collection of nuclei located deep beneath the cerebral cortex that is involved in learning and selection of rewarded actions. Here, we analyzed BG mechanisms that enable these functions.
Atwood, Brady+2 more
core +1 more source
Parallel organization of functionally segregated circuits linking basal ganglia and cortex.
Information about the basal ganglia has accumulated at a prodigious pace over the past decade, necessitating major revisions in our concepts of the structural and functional organization of these nuclei.
G. E. Alexander, M. DeLong, P. Strick
semanticscholar +1 more source
Basal Ganglia Circuits for Action Specification.
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 isolated movements in laboratory settings, or via introspection, it has become ...
Junchol Park+2 more
semanticscholar +1 more source
Time representation in reinforcement learning models of the basal ganglia [PDF]
Reinforcement learning (RL) models have been influential in understanding many aspects of basal ganglia function, from reward prediction to action selection.
Alvaro F. Nieto Guil+7 more
core +5 more sources
Nondirected axonal growth on basal lamina from avian embryonic neural retina [PDF]
The vitreous surface of the embryonic avian retinal neuroepithelium was isolated by mechanical disruption of the retina mounted between 2 adhesive substrata.
Halfter, W.+2 more
core +1 more source
Neurotransmitters in the Basal Ganglia [PDF]
ABSTRACTThe literature is reviewed on the afferents and efferents of the caudate/putamen, globus pallidus and substantia nigra, and on the neurotransmitters occurring in the various tracts. Emphasis is placed upon the diverse roles played by GABA and glutamate as transmitters in motor pathways and upon the probability that the substantia nigra pars ...
Edith G. McGeer+2 more
openaire +3 more sources