News Finding: "It helps scientists study the dynamics of brain circuits that may explain the neural basis of learning."
Paper Finding: If that were the case, the angles between control spaces would have been zero, not in the range of 40-80u as shown.
News Context: We found that subjects were able to more readily recombine familiar activity patterns in new ways relative to creating entirely novel patterns." "It helps scientists study the dynamics of brain circuits that may explain the neural basis of learning." The results showed that the subjects learned to generate some neural activity patterns more easily than others, since they only sometimes achieved accurate cursor movements.
Paper Context: 3b also shows that the perturbations were not pure workspace rotations. If that were the case, the angles between control spaces would have been zero, not in the range of 40-80u as shown. If learning one type of perturbation required larger changes in preferred directions of neural units, then those perturbations might be harder to learn.