منابع مشابه
Visuo-motor transformations for arm reaching.
Visuomanual co-ordination requires the merging of ocular and arm information in a common frame of reference. Here we consider behavioural evidence in humans for the use of a viewer-centred frame in the specification of end point positions of reaching. We then review anatomical and neurophysiological data in the non-human primate that indicate a prominent role of the parietal cortex in the proce...
متن کاملFusion of visuo-ocular and vestibular signals in arm motor control.
Keeping the finger pointing at an Earth-fixed object during body displacements can be achieved if compensatory arm movements counteract the effect of the rotation on the hand's position in space. Here we investigated the fusion of signals that originated from systems having different neurophysiological properties (i.e., the visuo-oculomotor and vestibular systems) in the production of such comp...
متن کاملThe visuomotor transformation for arm movement accounts for 3-D eye orientation and retinal geometry.
To point or reach to a visual target, you need to know its direction relative to your shoulder. That direction can be computed from the retinal image, if the brain also knows the orientation of the eyeball, head, and clavicle. To be geometrically exact, the neural computation would have to involve rotary operations.1 When the eye was turned 30° up, for instance, the brain would take the locatio...
متن کاملFrom visuo-motor to language
We propose a learning agent that first learns concepts in an integrated, cross-modal manner, and then uses these as the semantics model to map language. We consider the action of throwing, considering the whole trajectory as a single image. A large set of such images, and the throwing parameters are mapped jointly onto a low-dimensional non-linear manifold. Such models improve with practice, an...
متن کاملKeeping an eye on the conductor: neural correlates of visuo-motor synchronization and musical experience
For orchestra musicians, synchronized playing under a conductor's direction is necessary to achieve optimal performance. Previous studies using simple auditory/visual stimuli have reported cortico-subcortical networks underlying synchronization and that training improves the accuracy of synchronization. However, it is unclear whether people who played regularly under a conductor and non-musicia...
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ژورنال
عنوان ژورنال: Frontiers in Neuroscience
سال: 2009
ISSN: 1662-453X
DOI: 10.3389/conf.neuro.01.2009.16.084