منابع مشابه
From 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...
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BACKGROUND Visuo-motor coordination (VMC) requires normal cognitive executive functionality, an ability to transform visual inputs into movement plans and motor-execution skills, all of which are known to be impaired in Parkinson's disease (PD). Not surprisingly, a VMC deficit in PD is well documented. Still, it is not known how this deficit relates to motor symptoms that are assessed routinely...
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In this paper we review and integrate a set of findings on learning the transformation of a sliding first-order lever, a type of tool with a prominent role in minimal access surgery. Its kinematic transformation is characterized by the so-called fulcrum effect, the inversion of the movement direction of the tip of the lever relative to that of the hand for rotations. A second characteristic is ...
متن کاملVisuo-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...
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To measure dynamic visuo-motor coupling within the two hemispheres, we showed observers an animation of a rotating cup. They indicated with left or right buttons when a Wxation dot in the center of the animation changed color. For either hand, response times changed continuously with the irrelevant position of the cup’s handle, even when the perceptual asymmetry of the handle was controlled. Th...
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ژورنال
عنوان ژورنال: BMJ
سال: 1967
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.4.5574.259