phenomenon · claim-type · cross-domain-transfer · mechanism · claim-relation · replication-status · limitation — grounded in the full text| phenomenon | spatial position coding in hippocampal local field potentials— “In the hippocampus, neurons discharge selectively when the rat is at certain locations, while LFPs at single anatomical sites exhibit no such place-tuning.” | |
| claim-type | existence— “We demonstrated that the rat’s location is encoded by spatial variations of the hippocampal LFP.” | |
| method — evidence | — “Rats were implanted with 32-, 64-, or 256-site silicon probes in the hippocampus to monitor both LFP and unit firing ( Fig. 1A ) while they traversed a linear track ( Fig. 1B ), open field, or a T maze ( 11 ).” | |
| object of study — evidence | — “In the hippocampus, neurons discharge selectively when the rat is at certain locations, while LFPs at single anatomical sites exhibit no such place-tuning.” | |
| research question — evidence | — “Nonetheless, because the representation of position is sparse and distributed, we hypothesized that spatial information can be recovered from multiple-site LFP recordings.” | |
| contribution — evidence | ||
| transfer | from communications engineering / radio transmission: The carrier-wave and demodulation model: theta is treated as a carrier whose modulation carries the message, and the analysis strips the carrier phase to read that message out Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | transfers[0] |
| transfer | from signal processing / applied mathematics (compressed sensing): The compressed-sensing result that sparse signals can be recovered from mixed, subsampled measurements, used to justify recovering position from pooled field potentials by unsupervised learning Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | transfers[1] |
| transfer | from radio communication / signal processing: the carrier-and-modulation model of a signal, and the demodulation operation that recovers the message from it, applied to a brain rhythm Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | transfers[2] |
| transfer | from compressed sensing: the result that a sparse signal is recoverable from mixed and subsampled measurements, used to justify reading position out of pooled field potentials Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | transfers[3] |
| mechanism | Because hippocampal place cells are not topographically arranged, any one electrode pools dissimilarly tuned neurons and therefore shows only weak place modulation, which is why the code appears only across many sites Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | mechanisms[0] |
| mechanism | During movement the population is driven by a single sparse cause - current position - so unsupervised source separation can recover that cause from mixed, subsampled field-potential measurements Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | mechanisms[1] |
| mechanism | The theta LFP inherits position information because it is generated mainly by the membrane potential fluctuations of the place cell population itself Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | mechanisms[2] |
| mechanism | the theta rhythm is treated as a radio carrier wave, and position is recovered by demodulating it - stripping the carrier phase to leave a spatial pattern Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | mechanisms[3] |
| mechanism | the LFP carries place information because it is generated by the membrane potentials of the place-cell population itself Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | mechanisms[4] |
| mechanism | position is a single sparse cause driving the whole population, which is why an unsupervised method can recover it without being told where the rat is Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | mechanisms[5] |
| builds-on | earlier large-scale LFP recording work, cited only as reference 25 Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | claim_relations[0] |
| builds-on | the compressed-sensing theoretical result cited as reference 14 (with compressed sensing, reference 15) Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | claim_relations[1] |
| contradicts | the assumption that pooling across a non-topographic population destroys the information in an LFP Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | claim_relations[2] |
| builds-on | the theta-phase precession literature on place cell spikes ( 19 ) Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | claim_relations[3] |
| sense | carrier - in radio communication, the steady wave whose modulation carries the message; used here for the hippocampal theta oscillation Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | senses[0] |
| sense | code - a distributed population code, where information is in the pattern across many sites rather than in any one of them Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | senses[1] |
| sense | sparse - in the compressed-sensing sense: few active causes, which is what makes unsupervised recovery possible Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | senses[2] |
| control | the LFP decoder benchmarked against established spike-based decoding on the same data, both cross-validated — held — rules out a decoding accuracy with no reference point - the spike decoder is what the field already trusts, and the comparison is made on the same recordings with the same validation Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | controls[0] |
| edge | theta rhythm —renamed-across-fields→ carrier wave Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concept_edges[0] |
| edge | local field potential —distinct-from→ spikes Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concept_edges[1] |
| weight | place cells —causes→ local field potential — 0.9 Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concept_edges[2] |
| audit | feature-tuned field potentials —contrasted-with→ place cells — Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but the span writes 'FFPs' and 'pyramidal cells ... place fields', not 'place cells'. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concept_edges[3] |
| differs in | feature-tuned field potentials —contrasted-with→ place cells — THE AXIS IS HOW MANY FIELDS EACH UNIT HAS. 'Unlike FFPs, pyramidal cells had multiple place fields in one or both directions of travel, leading to distinct pairwise activity profiles of the populations.' The consequence is stated too: the field count is what makes the two populations separable, so the axis is also the reason the contrast matters. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concept_edges[3] |
| edge | theta rhythm —part-of→ local field potential Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concept_edges[4] |
| outcome (stated by the tagger, no quotation) | control — held | controls[0] |
| for which use | limitation — the number of position-tuned components recovered: AS THE TRIAL-BY-TRIAL VARIABILITY OF NEURONAL ACTIVITY WAS INCREASED, ICA IDENTIFIED A DECREASING NUMBER OF FFPs Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | limitations[0] |
| for which use | limitation — any single-site interpretation of the field potential: EACH ELECTRODE SUBSAMPLES (POOLS) THE ACTIVITY OF A LARGE POPULATION OF NEURONS Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | limitations[1] |
| duplicate of | limitation — limitations[0] Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | limitations[2] |
| for which use | limitation — the same scope as limitations[0] - the component count is partly a measure of the noise Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | limitations[2] |
| for which use | limitation — the spatial resolution of the readout: FOR NOISY POPULATIONS, FFP WIDTH INCREASED IN PROPORTION TO, BUT NEVER EXCEEDED, THE TUNING WIDTH OF THE UNDERLYING POPULATION'S PLACE FIELDS Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | limitations[3] |
| for which use | limitation — the mechanistic account linking components to populations: A SIMULATION WAS CONSTRUCTED IN WHICH THE LFP WAS MODELED AS THE SUPERIMPOSED ACTIVITY GENERATED BY NUMEROUS PLACE-MODULATED SYNAPTIC INPUTS Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | limitations[4] |
| duplicate of | mechanism — mechanisms[2] Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | mechanisms[4] |
| duplicate of | transfer — transfers[1] Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | transfers[3] |
| replication | untested | |
| limitation | The unsupervised (ICA) discovery of position-tuned field-potential features degrades as trial-by-trial neuronal variability grows: fewer components are recovered from noisy populations. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | limitations[0] |
| limitation | Each electrode pools a large, non-topographically-ordered population, so any single site is only weakly place-modulated. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | limitations[1] |
| limitation | The method degrades with neuronal variability: noisier populations yield fewer recoverable components. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | limitations[2] |
| limitation | Recovered component width is bounded by the tuning width of the underlying population, so the readout cannot be sharper than what generates it. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | limitations[3] |
| limitation | The mechanistic account of how FFPs relate to neuronal populations rests on a simulation, not on measurement. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | limitations[4] |
finding · quantity · variable · definition · key-term — grounded in the full text| finding | The spatiotemporal structure of the hippocampal theta rhythm, sampled across many electrodes, encodes the rat's position about as well as populations of spiking neurons do. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[0] |
| finding | Decoding accuracy from field potentials matched that from spikes, with a slightly smaller median error, though the two decoders depended differently on running velocity and position. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[1] |
| finding | Successful decoding required both removing the theta carrier phase and keeping the signal's high dimensionality, even though most of its variance lay in a low-dimensional subspace. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[2] |
| finding | Unsupervised decomposition of the theta-band field potential recovered components that fire selectively at particular track positions and carry most of the signal variance. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[3] |
| finding | Each FFP's phase advanced progressively as the animal crossed its field, mirroring theta phase precession of place cell spikes. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[4] |
| finding | FFPs covered the track more evenly than pyramidal cell place fields did, which matched the relative accuracy of the two decoders. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[5] |
| finding | Position could still be decoded and FFPs identified from dendritic-layer sites, excluding the somatic layers where spikes were detected. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[6] |
| finding | A different, broadband sparse-coding analysis recovered position-tuned components spread along the whole track, matching the theta-band result. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[7] |
| finding | In simulation, for noisy populations FFP width grew in proportion to, but never exceeded, the tuning width of the underlying place fields. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[8] |
| finding | Position decoded from the LFP is about as accurate as position decoded from spikes - median error 6.7 cm against 9.2 cm. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[9] |
| finding | A subset of the decomposed components, termed FFPs, is selectively active at specific track positions along one running direction. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[10] |
| finding | These components carry most of the signal - 53 to 79% of total variance across three rats. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[11] |
| finding | The ICA-derived FFPs show several place-cell-like properties: smooth, localized place fields, phase precession and considerable trial-by-trial variability. Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.findings[12] |
| quantity | 6.7 ± 0.2 cm (LFP) and 9.2 ± 0.2 cm (spiking) — Median position-decoding error from field potentials versus from spikes Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[0] |
| quantity | 53%, 69%, and 79% — Share of total signal variance carried by the position-tuned components in each of three rats Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[1] |
| quantity | 8 to 9 Hz — Frequency of the hippocampal theta oscillation that carries the position code Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[2] |
| quantity | 4 to 80 Hz — Band of the broadband LFP analysed with sparse coding Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[3] |
| quantity | ~50 — Number of FFPs recovered from two 256-electrode arrays that together covered the whole T maze Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[4] |
| quantity | 32-, 64-, or 256-site — Channel counts of the silicon probes implanted in the hippocampus Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[5] |
| quantity | 10-s — Delay period in the waiting area during the T-maze spatial alternation task Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[6] |
| quantity | 6.7 ± 0.2 cm (LFP) vs 9.2 ± 0.2 cm (spiking) — median position decoding error, the paper's headline comparison Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[7] |
| quantity | 8 to 9 Hz — frequency of the hippocampal theta rhythm treated as the carrier Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[8] |
| quantity | 53%, 69%, 79% — share of total LFP variance carried by the position-tuned components, per rat Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[9] |
| quantity | ~50 FFPs — number of position-tuned components recovered from two 256-electrode arrays in the T maze Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[10] |
| quantity | 32-, 64-, or 256-site probes — recording density Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.quantities[11] |
| variable | position of the rat (independent) Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.variables[0] |
| variable | trial-by-trial variability of neuronal activity (independent) Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.variables[3] |
| definition | feature-tuned field potentials (FFPs) Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.definitions[0] |
| definition | theta oscillation Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.definitions[1] |
| definition | place cells Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.definitions[2] |
| definition | feature-tuned field potentials (FFPs) Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.definitions[4] |
| definition | action potentials Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.definitions[6] |
| definition | local field potentials Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.definitions[7] |
| key-terms | local field potential, place cells, theta rhythm, carrier wave, demodulation, independent component analysis, compressed sensing, feature-tuned field potentials, place fields, phase precession, sparse coding, spikes, hippocampus |
| concept | local field potential — not defined in this paper's own words; the extracellular signal reflecting synaptic and subthreshold activity, as distinct from spikes Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concepts[0] |
| concept | spikes — not defined in this paper's own words; the discrete firing events of individual neurons, the other extracellular signal Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concepts[1] |
| concept | theta rhythm — not defined in this paper's own words; the 8-9 Hz hippocampal oscillation, here treated as the carrier of a modulated signal Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concepts[2] |
| concept | carrier wave — not defined in this paper's own words; the radio-communications notion of a steady oscillation whose modulation carries the information, imported here to describe theta Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concepts[3] |
| concept | demodulation — not defined in this paper's own words; removing the carrier phase to leave the modulating pattern - the operation that makes position visible in the LFP Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concepts[4] |
| concept | place cells — not defined in this paper's own words; hippocampal pyramidal cells that fire at particular locations in the environment Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concepts[5] |
| concept | feature-tuned field potentials — not defined in this paper's own words; components of the field potential that activate at specific positions - the LFP's counterpart to a place cell Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concepts[6] |
| concept | compressed sensing — not defined in this paper's own words; the signal-processing result that a sparse signal can be recovered from mixed, subsampled measurements Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concepts[7] |
| concept | independent component analysis — not defined in this paper's own words; the unsupervised decomposition used to recover the position-tuned components Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concepts[8] |
| concept | phase precession — not defined in this paper's own words; the progressive advance of firing phase as an animal crosses a place field Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | concepts[9] |
| principal component analysis | Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.statistics[0] |
| independent component analysis ICA | as written: independent component analysis (ICA) Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.statistics[1] |
| cross-validation | as written: cross-validated accuracy Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.statistics[2] |
| median | as written: median error Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.statistics[3] |
| linear estimator (linear decoding) OLE | as written: optimal linear estimator (OLE) Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.statistics[4] |
| Bayesian estimation | as written: Whitening and Bayesian decoding methods Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.statistics[5] |
| sparse coding (unsupervised dictionary learning) | as written: convolutional sparse coding algorithm Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.statistics[6] |
| median median | Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.statistics[7] |
| principal-component-analysis PCA | Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.statistics[8] |
| variance σ² | Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | content_tags.statistics[9] |
| phenomenon | distributed encoding of spatial position in the hippocampal local field potential — a second reading DIFFERING from the recorded value; recorded: spatial position coding in hippocampal local field potentials Quotation withheld — this paper is not ours to reproduce, and the page has already quoted as much of it as the rights layer allows. The tag, its field and its confidence stand; the sentence is at the publisher. | alternatives.phenomenon |
When we have changed our mind. Some entries in the table begin with a word in capitals and the reason for it. EVIDENCE CORRECTED — the finding still stands, but we had quoted the wrong sentence from the paper, and the quotation has been replaced with the right one. RETRACTED — the entry itself was wrong; it stays on the page, marked, with the reason, rather than being deleted. WITHDRAWN AND REPLACED — the entry was wrong, and a corrected version of it appears in the entries below. Each mark carries its own reason, in brackets, because the reasons differ from one entry to the next. An entry we have WITHDRAWN is removed from this page and kept in the record, with its reason. A line reading Audit and a date is a later re-reading of the entry against its whole sentence: DOUBTFUL means it was kept, and the reason says what is loose about it. Quotation marks inside the tagger's sentence. Where a tag is the tagger's own sentence, a phrase in quotation marks inside it is borrowed from the paper — the tagger's wording around it is not. The paper's own sentence is the evidence quote for that row; on this page it is withheld with the article, and the article is at its publisher. Nothing inside quotation marks anywhere on this page is ours: if it is quoted, it is the paper's. Whose words a concept carries. A concept entry records a term the paper itself uses, so the term, the sense given for it, and its evidence are the paper's own words, quoted where the paper fixes them. This is the opposite of a sense entry in the tag table, which is the tagger's sentence about how the paper uses a term. Where a concept entry could not be grounded in the paper's words, the entry says so on its own row.
Tag layer © the Meta-Tagging Project, CC BY 4.0. The paper text is © its authors/publisher
and is linked, not reproduced. Excerpts shown are short quotations for identification and verification.
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