Blanke, O. & Metzinger, T. (2009). Full-body illusions and minimal phenomenal selfhood. Trends in Cognitive Sciences 13(1), 7–13. DOI 10.1016/j.tics.2008.10.003. PMID 19058991.
Key takeaways
From the reading, NOTE-1002.
- A target phenomenon. Minimal phenomenal selfhood is “the experience of being a distinct, holistic entity capable of global self-control and attention, possessing a body and a location in space and time”. The authors propose isolating it first, as “the simplest form of the target phenomenon”.
- Three dimensions. Self-identification with the body as a whole, spatiotemporal self-location, and a weak first-person perspective, a purely geometrical point of projection. They are claimed necessary and sufficient for MPS, and the weak 1PP is part of MPS, while MPS is necessary for the strong (subjective) and cognitive (conceptual) 1PP.
- Partial against global ownership. The rubber-hand illusion and somatoparaphrenia change ownership of a part. Because those studies do not manipulate self-location, self-identification or the weak 1PP, the authors hold that they do not reach MPS. Body-part ownership and global self-identification are proposed to rest on different neurons: fingertip and hand fields against the large fields of area 5 and VIP, with the vestibular system.
- Neurology and experiment vary MPS along its dimensions. Autoscopic hallucination leaves all three dimensions normal; heautoscopy and out-of-body experience disturb all three, with lesions mostly at the temporo-parietal junction. Full-body illusions in virtual reality shift self-identification and self-location towards wherever the stroking is seen, and are abolished by asynchronous stroking.
- Agency is not constitutive. A “passive, multisensory and globalized experience of ‘owning’ a body is sufficient for minimal conscious selfhood”. Agency belongs to the causal background, and MPS could in principle occur in “a disembodied, non-neural, artificial system possessing no effectors”.
Standing in the record
Filed and read on 2026-10-19 at the owner’s request, to fill the gap around the rubber-hand illusion and bodily self-consciousness. Until now the record held body ownership only through Metzinger’s “Self models” (LIT-450, NOTE-372), whose claim C6 cites this paper and Lenggenhager et al. (2007) for the manipulation of body ownership by multisensory conflict. This paper is where that claim is argued, and it narrows the claim table’s wording: what is “the simplest form” of selfhood is not body ownership in general but global ownership, and the rubber hand, which manipulates part ownership, does not reach it.
It is the empirical arm of the self-model theory the record holds as THEORY-064 (from LIT-568 and LIT-450): it ties transparency and opacity of the body model to how strongly self-identification is expressed, and it reads out-of-body experience as an error through misidentification. That is misidentification of the body one identifies with, so it does not contradict the immunity clause of THEORY-458 (Gallagher, LIT-453), which allows “I” as object to misidentify. Its thesis that agency is enabling but not constitutive sits against Gallagher’s pairing of ownership and agency within the minimal self, and agrees with Haggard’s point (LIT-1009, NOTE-827) that involuntary movement brings ownership without agency. That thesis is the paper’s weakest: the evidence is from adults whose agency was intact, and NOTE-1002 says what it does and does not show. It carries no instruction for machine-learning practice; its remark on artificial systems is a conceptual possibility, not a practice.
Filed alongside, in the 2026-10-19 batch on the rubber hand illusion and bodily self-consciousness: Botvinick & Cohen 1998, the rubber hand illusion (LIT-1277); Lenggenhager et al. 2007, the full-body illusion (LIT-1279); Apps & Tsakiris 2014, the free-energy self (LIT-1262); Seth 2013, interoceptive inference (LIT-1263).
Filed from this work on 2026-10-20: THEORY-768, on minimal selfhood as identification with the whole body.