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LIT-1945: The Problem of Mental Action: Predictive Control without Sensory Sheets

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Properties5
StatusActive — read in full 2026-11-01 (NOTE-1496), from the open-access PDF on the collection's own site (predictive-mind.net/papers/the-problem-of-mental-action/at_download/paperPDF), text extracted with pdftotext. Worth reading for two things the 2013 and 2015 papers lack: a model of mental action as selection from a competition among candidate thoughts that mind-wandering supplies (the "cognitive affordance hypothesis"), and a plain statement that the data cannot yet decide whether the epistemic agent model constitutes mental control, represents and enables it, or is a phenomenal by-product (THEORY-1296). That withholds what M-autonomy (LIT-1941) asserted as a principle. Four testable hypotheses, none tested; no data.
Tagsagency, cognition, self, probabilistic-modeling
ExtendsLIT-1941 — M-Autonomy
Cited as “paper” byNOTE-1496 — Metzinger — The problem of mental action
Cited as “source” byTHEORY-1296 — Deliberate thought selects and sustains candidates from a stream of unintended thoughts that mind-wandering generates, and whether the conscious model of oneself as a knower that accompanies the selection causes it, enables it or only accompanies it is undecided by current evidence, THEORY-1298 — When mental control returns after mind-wandering, the self-model represents the return as the person's own act whether or not the person's control system caused it, because it must bridge to earlier control to keep the autobiographical self-model continuous, THEORY-1300 — In mind-wandering the capacity for veto over one's own mental processes is kept and its representation in the self-model is lost, and on Metzinger's principle a capacity can be deliberately exercised only while it is so represented; the loss of M-autonomy is then the loss of a condition of the capacity's efficacy, not of the capacity

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Metzinger, T. (2017). The problem of mental action: Predictive control without sensory sheets. In T. Metzinger & W. Wiese (Eds.), Philosophy and Predictive Processing (ch. 19). Frankfurt am Main: MIND Group. DOI 10.15502/9783958573208.

Read in full in NOTE-1496.

Key takeaways

  • Mental action and mental behaviour. Both are directed at goal states; only actions “can be terminated, suspended, or intentionally inhibited”; mind-wandering is “a paradigm case of unintentional mental behavior” (pp. 2–3). M-autonomy is “the capacity for second-order mental action, i.e., vertical, intra-mental, top-down control”, with veto “the central semantic element” (p. 4).
  • Attentional agency as precision control. “Computationally, attentional agency (AA) … is the ability to control precision expectations”; what it controls is “the precision expectation embodied by an internal model” (p. 10). Its felt effort may be how “active, top-down precision control ‘collides’ with an automatically arising precision prediction error” (p. 10).
  • The cognitive affordance hypothesis. “a central function of autonomous activity in the mind wandering network is to create a constant stream of affordances for cognitive agency, a competition among possible cognitive actions”; thinking is “controlled mind wandering” (pp. 11–12).
  • The EAM’s role left open. “on one end of the spectrum we might treat the EAM as a mere epiphenomenon … at the other end it could be exactly the missing computational element … An intermediate position … the EAM would not constitute, but represent. It might causally enable relevant second-order functional properties like veto control”; the data “do not help to decide” (pp. 13–14).
  • Four hypotheses. Blocking the EAM’s introspective availability should start a mind-wandering episode (H1); re-establishing predictive self-control should make a dream lucid (H2) or end an episode (H3); blocking the subject–object loop should remove the phenomenology of epistemic goal-directedness (H4) (pp. 14–15). None is tested.
  • Model-free and model-based self-control. “mind wandering is model-free epistemic self-control, whereas mental agency is model-based epistemic self-control” (p. 15).
  • Agency as enculturated self-deception. Action initiation is “a functionally adequate form of self-deception”; the sense of ultimate origination “could therefore be an enculturated post-hoc confabulation” installed by caregivers before autobiographical memory begins (pp. 18–21).

Standing in the record

Filed at the owner’s request of 2026-11-01 and read for the will-organization line. It gives the record’s account of competing regimes a mental-scale counterpart: candidate thoughts compete, and control decides which is pursued. It carries no instruction for machine-learning practice; its predictive-processing apparatus is about brains.

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