منابع مشابه
A circuit for motor cortical modulation of auditory cortical activity.
Normal hearing depends on the ability to distinguish self-generated sounds from other sounds, and this ability is thought to involve neural circuits that convey copies of motor command signals to various levels of the auditory system. Although such interactions at the cortical level are believed to facilitate auditory comprehension during movements and drive auditory hallucinations in pathologi...
متن کاملConditioned activity of cortical motor neurons.
In awake rabbits, which received auditory stimuli paired with electric shock to a forelimb, the activity of 229 units were recorded. In 118 units conditioned responses were observed. In 68 units they were excitatory and in 50 units, inhibitory in accordance with the excitatory or inhibitory effect of the reinforcing stimulus. When the conditioned response appeared, 25 percent of the units showe...
متن کاملMotivation and motor cortical activity can independently affect motor performance.
The present study explored the relationship between motor-preparatory electroencephalographic (EEG) activity, motivation, and motor performance (specifically premotor reaction time [RT]). Participants performed a RT task by squeezing a hand dynamometer in response to an auditory "go" signal. We recorded EEG and electromyography to index beta-suppression and premotor RT, respectively. Participan...
متن کاملMotor cortical activity during sinusoidal tracing
Single cell activity recorded from the proximal arm area of motor cortex during the performance of arm reaching tasks can be related to the direction of movement. This was found for single straight movements made directly to a target and for movements in which direction changed continually. Responses from a population of 2 2 6 directionally-sensitive cells were combined to form neural images of...
متن کاملMotor cortical activity in a context-recall task.
A monkey was trained to respond on the basis of the serial position of a test stimulus in a sequence. First, three stimuli were presented successively on a circle. Then one of them (except the last) changed color (test stimulus) and served as the go signal: The monkey was required to produce a motor response in the direction of the stimulus that followed the test stimulus. When the test stimulu...
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ژورنال
عنوان ژورنال: Nature
سال: 2001
ISSN: 0028-0836,1476-4687
DOI: 10.1038/35101651