In publica commoda


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Thought to Action

Title of the event Thought to Action
Series Blumenbach Lecture Series
Organizer Johann-Friedrich-Blumenbach Institut für Zoologie und Anthropologie
Speaker Richard A. Andersen
Speaker institution California Institute of Technology, Pasadena, USA
Type of event Vortrag
Category Forschung
Registration required Nein
Details To explore how intentions may be used for neural prosthetic applications, we have implanted microelectrode arrays in a high-level cortical area, the posterior parietal cortex (PPC), in human tetraplegics. We find that human PPC is very high dimensi-onal, coding a variety of variables including movements of both hands and both shoulders, observed actions, cognitive strategies, and memory-based decisions. This high dimensional coding is an advantage for neural prosthetics as a great deal of information can be read out from a single array in PPC. Tetraplegic patients cannot feel their bodies below the level of injury. To provide back somatosensati-on, in one tetraplegic participant we have intracortically microstimulated the primary somatosensory cortex with small electrical currents through microelectro-de arrays. The participant reported natural quality cutaneous and proprioceptive sensations: promising results for allowing natural-seeming somatosensory feed-back for more dexterous brain-control of robotic limbs.
Date Start: 22.05.2019, 16:15 Uhr
Ende: 22.05.2019 , 17:45 Uhr
Location Deutsches Primatenzentrum (Kellnerweg 4)
Contact 05513920817
External link
File attachment Andersen 22May2019.pdf