Cognitive Control Signals for Neural Prosthetics . Sam Musallam The Andersen Lab [email protected] What is a cognitive signal? . Signals that lie along the sensory to motor pathway but away from sensory and away from motor Not visual Not motor Encode higher order variables Intention
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Electrodes Dorsal Premotor Cortex
CArrays are Implanted in Medial Intraparietal Sulcus
Decoding Goals DPMC
Brain control trials
Monkeys are in the dark and are not allowed to move
This memory period activity is cognitive
chanceExample of feedback performance:6 Parietal neurons
Fixation maintained throughout trial.
Decoding 900 ms of memory period
8 targets decoded with 16 neurons
Red = water
Decode on 5
Without the reward schedule
barely above chance.
Reward schedule improves
Kelsie Pejsa condition