Emotional Valence and the Free-Energy Principle
Figure 3
Static perceptual model: and
.
The agent is exposed to the same sequence of sensory inputs described in the reference scenario (see Figure 2 for legends). (top) The posterior expectation of converges to 0.5, which is the true probability of
across the three (low and high volatility) stages. The agent is unaware of unexpected changes in the environment. (bottom left) The posterior variance (estimation uncertainty)
of
asymptotically converges to zero across trials
. Negative (red circle) and positive (blue circle) valences are indicated when elicited over the trial. The size of the circles is proportional to the surprise of the sensory input
at trial
. (bottom right) The change in the posterior variance of
from trial
to trial
as a function of negative (red circle) and positive (blue circle) valences.