Certainty is a meta-cognitive feeling that has been described as affective in nature

Humans and other animals trade other rewards and punishments for a greater sense of certainty

Certainty and reward are represented in the brain using a common neural code

People manage their affect by both seeking and rejecting a sense of certainty in different situations

At every moment there is something a person/animal is trying to do (a goal) and a reason they are trying to do it (a context for that goal). In the Affect Management Framework (AMF; Haynes-LaMotte, 2025), contextualized goals are constantly shifting in the brain, informed by the senses of the world and the body (vision, hearing, touch, taste, smell, interoception, and proprioception) as well as the semantic factors of meaningfulness, certainty, and agency.

Because our affect is attached to our goals, what contextualized goals we take on and how and when we choose to pursue or relinquish across similar situations can be described as different affect management policies.

In this post, I hope to expand upon the affective side of certainty as described in the AMF:

Certainty represents an important aspect of all brain function, based on the notion that the brain implements ongoing hierarchical Bayesian estimation across sensory modalities and that this process of best-guessing gives rise to conscious experience (Barrett, 2017; Clark, 2023). A sense of certainty/uncertainty has been described as a meta-cognitive feeling that is part of conscious affective experience (Loev, 2022; Velasco & Loev, 2024).

Certainty is often required to construct the meaningful goals that impact momentary affect. For instance, rules to a board game or sport operate as bits of certainty that give the outcome meaning in the absence of major consequences that otherwise would provide that meaning. Generally speaking, a sense of certainty allows animals to invest their efforts in worthwhile goals that are likely to be successful.

There are several pieces of evidence suggesting that a sense of certainty is part of the affective common currency of the mind. For example, studies among humans, monkeys, and other animals have found that they give up some of their material rewards for informational gain that has no clear instrumental value (for a review, see Bromberg-Martin et al., 2024), and that informational value and other kinds of reward are represented in the brain using a common neural code (Bromberg-Martin & Hikosaka, 2009; Bromberg-Martin & Hikosaka, 2011; Kobayashi & Hsu,........

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