Top Mysteries of the Mind Revisited: Default Space Theory Eight Years On
Journal of Neurological Sciences and Research. October 11, 2026 DOI: 10.52793/jnsr.2026.6(2)-63 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Theoretical or philosophical paper Peer reviewed |
|---|---|
| Key points | Argues that two of the Default Space Model's 2018 answers require correction: the claim that cortical oscillations directly synchronize with sensory organs is withdrawn, with prediction relocated to the thalamocortical loop and pre-existing spatial field occupancy, and the emotion construct is revised to calibration rather than interoceptive accuracy or parasympathetic amplification. Proposes that binding be reformulated as why experience does not come apart, qualifies binding-by-synchrony given COGITATE connectivity findings, and contends the sleep account is strengthened because the metabolite clearance rival has become contested. |
Abstract
In 2018 my colleague and I asked five questions that neuroscience had not answered -how subjective experience relates to the physical world, how perception is so fast, how distributed processing yields one experience, why we sleep, and how emotions are regulated -and argued that the Default Space Model supplied insight into each.Eight years on, two of those answers require correction, one has been overtaken by evidence, and the framework behind all five has acquired an internal architecture it did not have.This paper revisits the five mysteries in light of that architecture and of intervening evidence.The principal correction concerns speed.The 2018 account held that cortical oscillations synchronise directly with the sensory organs, so that predicted stimuli are filtered and amplified at the receptor.I withdraw that claim: no mammalian pathway is known by which cortical oscillations could phase-lock photoreceptor activity, and the account does not require it.The replacement locates prediction in the thalamocortical loop and in the pre-existing occupancy of a spatial field, most of which is not receptor-supplied at any moment.The second correction concerns emotion: the relevant construct is not interoceptive accuracy, nor parasympathetic amplification, but calibration.The account of binding is reformulated as its inverse -why experience does not come apart, given compartments with different sources and different organising relations -and the appeal to binding-by-synchrony is qualified in light of the COGITATE consortium's connectivity findings.The account of sleep is strengthened by an unexpected development: the leading rival explanation, metabolite clearance, has become contested.I close with four questions the 2018 paper could not have posed, and with the predictions by which the present account can be found wrong.