Our ability to move is central to everyday life. Investigating the neural control of movement in
general, and the cortical control of volitional arm movements in particular, has been a major …

In primates, control of the limb depends on many cortical areas. Whereas specialized
parietofrontal circuits have been proposed for different movements in macaques, functional …

Recent advances in fluorescence imaging permit studies of Ca 2+ dynamics in large
numbers of cells, in anesthetized and awake behaving animals. However, unlike for …

The motor cortices are active during both movement and movement preparation. A common
assumption is that preparatory activity constitutes a subthreshold form of movement activity …

We consider the problem of extracting smooth low-dimensional neural trajectories''that
summarize the activity recorded simultaneously from tens to hundreds of neurons on …

Recent data and motor control theory argues that movement planning involves preparing the
neural state of primary motor cortex (M1) for forthcoming action execution. Theories related …

Current models of sensorimotor transformations emphasize the dominant role of gaze-
centered representations for reach planning in the posterior parietal cortex (PPC). Here we …

The sensory signals that drive movement planning arrive in a variety of'reference frames',
and integrating or comparing them requires sensory transformations. We propose a model in …

Egocentric encoding is a well-known property of brain areas along the dorsal pathway.
Different to previous experiments, which typically only demanded egocentric spatial …

Some movements that animals and humans make are highly stereotyped, repeated with little
variation. The patterns of neural activity associated with repeats of a movement may be …