Furthermore, when approximate inference is performed using Variational Bayes (Attias 2000; Beal 2003), the time course of precision updating closely resembles phasic dopamine responses (Friston et al. forthcoming).
Probably anyone who has had to inspect or maintain any kind of building or space bigger than a studio apartment can see the value in getting frequent, high-precision updates on everything in that space, from storage shelving to heavy machinery.
We included 5 parametric regressors for precision, the updates (or first derivative) of precision, choice conflict, the updates (or first derivative) of choice conflict, and the length of a game (long and short).
The expected precision is updated at each trial depending on the inferred policy, choice values, and expected current (hidden) state.
Of course, the failure-based scheme also incurs additional time-delay for retrying the decoding with an updated precision.
In contrast, updating precision was enhanced when a target representation had to be internally remapped to the stimulated hemisphere, but not in other remapping conditions.
Therefore, this instrument allowed us to calculate long-term TB incidence rate and to determine associated risk factors with high precision and to update existing estimates [ 20].
Precision is then updated at each trial according to the current state, with a sharp increase after a high offer and a decrease when an offer is withdrawn (because the confidence in reaching the desired goal is maximal and minimal, respectively).
(The newly fashionable term "precision medicine" is an updated version of another genomics buzzword, "personalized medicine").
