Coherent Oscillations in Neuronal Activity of the Supplementary Motor Area during a Visuomotor Task
نویسندگان
چکیده
منابع مشابه
Coherent oscillations in neuronal activity of the supplementary motor area during a visuomotor task.
Neural activity recorded in behaving animals is nonstationary, making it difficult to determine factors influencing its temporal patterns. In the present study, rhesus monkeys were trained to produce a series of visually guided hand movements according to the changes in target locations, and multichannel single-neuron activity was recorded from the caudal supplementary motor area. Coherent osci...
متن کاملActivity in the supplementary motor area related to learning and performance during a sequential visuomotor task.
Monkeys were trained in a serial reaction time task to produce hand movements according to changing locations of visual targets. In most trials, targets followed the same sequence repeatedly, whereas in other trials targets were presented in random locations or switched unpredictably between two alternative sequences. Single-unit activity was recorded from the caudal supplementary motor area (S...
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Movements with similar physical characteristics can occur in various behavioral contexts, as when they are embedded in different sequences or when the expected outcomes of movements vary. Similarly, neurons in various sensory and motor structures in the brain commonly display modulations in their activity according to contextual factors, such as expected reward. Although these contextual signal...
متن کاملComparison of neuronal activity in the rostral supplementary and cingulate motor areas during a task with cognitive and motor demands.
A number of cortical motor areas have been identified on the medial wall of the hemisphere in monkeys. However, their specific role in motor control remains unclear. In this study, we sought to describe and compare the functional properties of the presupplementary (pre-SMA) and rostral cingulate (CMAr) motor areas in two monkeys performing a visually instructed, delayed, sequential movement. We...
متن کاملNeuronal activity of the supplementary motor area (SMA) during internally and externally triggered wrist movements.
The activity of neurones was recorded from the supplementary motor area (SMA) of monkeys while they were performing a discrete, arbitrary wrist movement. The cells responded similarly whether there was a triggering stimulus at the time of the movement or not. This experiment indicates that SMA neurones are active both in relation to externally triggered and internally initiated (voluntary) acti...
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ژورنال
عنوان ژورنال: The Journal of Neuroscience
سال: 2003
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.23-17-06798.2003