3D Plot from Scientific Research

Predictions for the neural representation of actions in the case of a specification (upper row) or selection (lower row) model (color as in A). In the case of a specification model, neural activity encodes a metric space corresponding to different action parameters (e.g., cosine tuning on a flat manifold in neural space). The power of a selection mechanism is that activity is projected in separate directions for any given action in the space. For very distinct actions (left), these two models make indistinguishable predictions. However, for similar actions, the models make distinguishable predictions (right).

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