M
Mark Hallett
Researcher at National Institutes of Health
Publications - 1234
Citations - 136876
Mark Hallett is an academic researcher from National Institutes of Health. The author has contributed to research in topics: Transcranial magnetic stimulation & Motor cortex. The author has an hindex of 186, co-authored 1170 publications receiving 123741 citations. Previous affiliations of Mark Hallett include Government of the United States of America & Armed Forces Institute of Pathology.
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Disturbances of kinaesthesia in patients with cerebellar disorders
TL;DR: The performance of patients with cerebellar degeneration was significantly worse than that of normal subjects on the tasks testing for duration and velocity perception, and spindle afferents were superior in detecting velocity changes.
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The time course of changes in motor cortex excitability associated with voluntary movement.
Robert Chen,Mark Hallett +1 more
TL;DR: Findings support the hypothesis that ERS represents an inactive, idling state of the cortex, which is abnormal in movement disorders such as Parkinson’s disease and dystonia, reflecting abnormalities in both movement preparation and in cortical excitability following movement.
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Movement rate effect on activation and functional coupling of motor cortical areas.
Keiichiro Toma,Tatsuya Mima,Takahiro Matsuoka,Christian Gerloff,Tatsuhito Ohnishi,Benjamin Koshy,Frank Andres,Mark Hallett +7 more
TL;DR: The results suggested that for slow repetitive movements, each individual movement is separately controlled, and EEG activation and coupling of the motor cortical areas were immediately followed by transient deactivation and decoupling, having clear temporal modulation locked to each movement.
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Simple reaction time to focal transcranial magnetic stimulation. Comparison with reaction time to acoustic, visual and somatosensory stimuli.
TL;DR: Reaction time to Suprathreshold transcranial stimulation to the motor cortex seems to transiently inhibit the neurons responsible for initiation of motor programs involving muscles in which motor evoked potentials have been induced, thereby prolonging the reaction time.
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One man's poison--clinical applications of botulinum toxin.
TL;DR: This video explains howbotulinum toxin, one of the deadliest poisons known, is most commonly encountered as a source of food poisoning, and there are shivers around the world when it is faced with food poisoning.