Search Results for "Motor Control In Cortex"
Original Source: Motor control by sensory cortex.
Classical studies of mammalian movement control define a prominent role for the primary motor cortex. Investigating the mouse whisker system, we found an additional and equally direct pathway for cortical motor control driven by the primary somatosensory cortex. Whereas activity in primary motor cortex directly evokes exploratory whisker protraction, primary somatosensory cortex directly drives whisker retraction, providing a rapid negative feedback signal for sensorimotor integration. Motor control by sens...
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Corticostriatal neurons in auditory cortex drive decisions during auditory discrimination
The neural pathways by which information about the acoustic world reaches the auditory cortex are well characterized, but how auditory representations are transformed into motor commands is not known....
Cortex development depends on a protein
As outlined in a study published in Developmental Cell, researchers have discovered a novel function for p27 in the control of interneuron migration in the developing cerebral cortex.
Activity in motor–sensory projections reveals distributed coding in somatosensation
Cortical-feedback projections to primary sensory areas terminate most heavily in layer 1 (L1) of the neocortex , where they make synapses with tuft dendrites of pyramidal neurons. L1 input is thought...
Map of Brain's Speech Centers May Help `Locked-In' Patients Talk
[caption id="attachment_801" align="alignleft" width="300" caption="Electrode placement on speech motor cortex"] [/caption]Werner Penfield's famous homonculus map covered a large area on one side...
Robotic arm controlled by thoughts
Researchers in the United States say that a paralysed woman has been able to achieve unprecedented control of a robotic arm using just her thoughts.Jan Scheuermann, 53, was diagnosed with spinocerebel...
Effect of Serotonin on Paired Associative Stimulation-Induced Plasticity in the Human Motor Cortex
Motor memory: Light shed on how we learn to move
Understanding the way the brain represents extrinsic and intrinsic actions, and the relationship between the two, has been of great interest to researchers who seek to understand motor control and mot...
Developing Better Rehab Programs For Stroke Patients
The simple act of picking up a pencil requires the coordination of dozens of muscles: The eyes and head must turn toward the object as the hand reaches forward and the fingers grasp it. To make this j...
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Motor control by sensory cortex.
Classical studies of mammalian movement control define a prominent role for the primary motor cortex. Investigating the mouse whisker system, we found an additional and equally direct pathway for cort...
Motor cortex inhibition: A marker of ADHD behavior and motor development in children.
Attention-deficit/hyperactivity disorder (ADHD) is a childhood-onset behavioral diagnosis in which children often fail to meet age norms in development of motor control, particularly timed repetitive...
The organization of forelimb representation areas of the monkey, cat, and rat motor cortices has been studied in depth, but its characterization in the mouse lags far behind. We used intracortical mic...
Motor cortex hyperexcitability in subcortical ischemic vascular dementia.
To study whether in subcortical ischemic vascular dementia (SIVD) the changes of motor cortex excitability are due to the dementing process or to the cerebrovascular lesions, we examined 20 SIVD patie...
Previous brain imaging work suggests that stroke alters the effective connectivity (the influence neural regions exert upon each other) of motor execution networks. The present study examines the intr...
