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Rapid item-updating elevates neural manifold dynamics during encoding: evidence from a fixed-load verbal working-memory dataset

Year: 2026

Type: article

Abstract: We analyzed open neuro dataset ds006848, a fixed-load verbal working-memory EEG-ECG-PPG dataset (N = 30), comparing four visual presentation modes. Rapid sequential encoding (Fast, FastDelay) elevated neural manifold mobility (m) and diffusivity (d) during encoding relative to simultaneous or slow-paced display — while recall accuracy showed the opposite ordering. This behavioral dissociation indicates that m/d indexes rapid item-updating demand, not encoding success. Maintenance-period geometry was indistinguishable across conditions (Friedman p = 0.96), confirming the effect is encoding-specific.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.21034527

Author: Langell, Robin

Language: English

Topic: Neural dynamics and brain function

Subfield: Cognitive Neuroscience

Field: Neuroscience

Domain: Life Sciences

Open Access status: green

OpenAlex ID: W7166509983

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