Intrinsic Motivation Restoration

Principle

Intrinsic motivation requires specific neurobiological prerequisites: functional dopaminergic circuits, regulated arousal, intact reward sensitivity, PFC capable of generating and evaluating options. When these prerequisites are offline -- due to the exact stress mechanisms described in the biological mechanisms -- intrinsic motivation goes offline with them.

The advice "follow your curiosity" assumes functional prerequisites. When those prerequisites are absent, the advice fails -- not because the person lacks passion or drive, but because neurobiological capacity for curiosity is temporarily unavailable.

Derivation

Self-determination theory (Ryan & Deci 2000) describes intrinsic motivation as drive powered by autonomy, competence, and relatedness. But SDT treats these as psychological needs, not as neurobiologically grounded capacities that degrade under stress. The catecholamine-PFC dynamics (Arnsten 2009, 2015) provide the mechanism: when PFC shifts from reflective to reflexive mode, the capacity to generate options, evaluate their alignment with values, and sustain goal-directed action is degraded. The DA gain control pathway (Grace et al. 2007; Inglis et al. 2022) provides the reward-learning dimension: when DA population gain is dysregulated, phasic reward signals that normally reinforce intrinsically motivated behavior are disrupted.

Engineering implication

The actuator model's job is to restore prerequisites, not to substitute for what they produce. This means:

• During degraded states (R0, R1): restore biological preconditions (reduce load, provide controllability, wait)
• During recovered states (G0, G1): the person's own motivation operates; the system observes and maintains, does not push

A system that attempts to "motivate" a person whose PFC is in reflexive mode is adding cognitive load to a system that cannot process it. This is a specific instance of the state-conditioned gating principle and the backfire prediction (P1).