Arnulf B. A. Graf

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Understanding how the brain computes eye position is essential to unraveling high-level visual functions such as eye movement planning, coordinate transformations and stability of spatial awareness. The lateral intraparietal area (LIP) is essential for this process. However, despite decades of research, its contribution to the eye position signal remains(More)
A number of studies in tetraplegic humans and healthy nonhuman primates (NHPs) have shown that neuronal activity from reach-related cortical areas can be used to predict reach intentions using brain-machine interfaces (BMIs) and therefore assist tetraplegic patients by controlling external devices (e.g., robotic limbs and computer cursors). However, to our(More)
Oculomotor function critically depends on how signals representing saccade direction and eye position are combined across neurons in the lateral intraparietal (LIP) area of the posterior parietal cortex. Here we show that populations of parietal neurons exhibit correlated variability, and that using these interneuronal correlations yields oculomotor(More)
Acknowledgement I would like to thank my advisor, Richard Andersen, for the opportunity to do this work, and for his guidance and the excellent laboratory environment he has provided. I would also like to thank my committee, Cui, and Yaser Abu-Mostafa for many productive and enjoyable discussions. I also feel very grateful for support from the Sloan Swartz(More)
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