Motor Extinction in Distinct Reference Frames: A Double Dissociation

Motor Extinction in Distinct Reference Frames: A Double Dissociation

OBJECTIVE Test the hypothesis that right hemisphere stroke can cause extinction of left hand movements or movements of either hand held in left space, when both are used simultaneously, possibly depending on lesion site. METHODS 93 non-hemiplegic patients with acute right hemisphere stroke were tested for motor extinction by pressing a counter rapidly for one minute with the right hand, left ...

Evidence of Double Dissociation in Auditory Agnosia: Implications for Rehabilition

The Frames of Reference of the Motor-Visual Aftereffect

Repeatedly performing similar motor acts produces short-term adaptive changes in the agent's motor system. One striking use-dependent effect is the motor-to-visual aftereffect (MVA), a short-lasting negative bias in the conceptual categorization of visually-presented training-related motor behavior. The MVA is considered the behavioral counterpart of the adaptation of visuomotor neurons that co...

Frames of reference in hemineglect : a

Frames of Reference

A n amazing thing happened recently: A nonengineering person publicly praised what our profession has accomplished. Marilyn vos Savant writes a weekly column for Parade magazine, part of the Sunday newspaper for many people in the US. Vos Savant reportedly has the highest IQ ever recorded. Even if you believe that IQs don't mean much, vos Savant corroborated her brilliance when she stated in he...