Three groups of interneurons account for nearly 100% of neocortical GABAergic neurons — TEI-tagged view

Rudy, Fishell, Lee, Hjerling-Leffler · 2011 · neuroscience · doi:10.1002/dneu.20853 · full text at the source · TEI xml · tagged edition · index · concepts · authors
Where this record's text came from. faceted 2026-08 by reading the locally held text (xml); every evidence string verified as an exact substring of that text before merging. This is a review/perspective that synthesises the authors' own prior work (chiefly Lee et al., 2010, which shares an author with this article) rather than reporting a new experiment; that is why method is 'review' and the method quote is the article's own statement of what it is based on. It also cites unpublished observations (Jeong and Rudy; Xu and Rudy). The 'contradicts' relation is a caveat rather than a flat denial - the paper questions whether McGarry's extra SST subtypes are real or artefacts of using P10-18 mice. A qualification the facets do not carry: the paper itself notes PV/SST overlap at the mRNA level (<10%, up to ~16.3% in layer VI) even though protein expression does not overlap. 2026-08-13 and 2026-08-15 schema-0.3 passes: every quote verified as an exact substring of the staged text and anchored at merge time; concept terms verified present; every edge endpoint an existing node.
This record’s own method is review, and the tags below follow from that. A review’s findings, quantities and statistics are things stated IN this paper, and some of them report results obtained elsewhere. 6 tags on this page name the author the result belongs to. Measured across every review in this corpus, 81% of a review’s tags carry no citation at all — most of them are the review speaking. The corpus does not adjudicate the rest: read an unmarked tag as a claim this paper makes, not necessarily one it made first.
Tags on this paper every tag the record carries, whether or not the words occur in the text below — a number is how many papers in the corpus carry that tag; a tag with no number is unique to this paper
PV22 SST7 5HT3aR GABAergic7 basket cells3 chandelier cells3 Martinotti cells X943 neurogliaform cells VIP14 fast-spiking5 IHC2 ISH EGFP calretinin2 reelin2 input resistance6 facilitating2 depressing2 serotonin review319

Our tag layer for this paper

Cross-disciplinary analysis
content-tags & facets: phenomenon · claim-type · cross-domain-transfer · mechanism · claim-relation · replication-status · limitation — grounded in the full text
phenomenonneocortical GABAergic interneuron diversity— “An understanding of the diversity of cortical GABAergic interneurons is critical to understand the function of the cerebral cortex.”
claim-typeexistence— “This analysis has provided strong evidence that three major groups of neurons, those expressing the Ca 2+ -binding protein parvalbumin (PV), those expressing the neuropeptide somatostatin (SST), and those expressing 5HT3aRs account for nearly 100% of GABAergic neurons in somatosensory (S1) cortex.”
method — evidence— “It is largely based on the analysis of a population of GABAergic interneurons in mouse neocortex that express the ionotropic serotonin receptor 5HT3a (5HT3aR).”
object of study — evidence— “This analysis has provided strong evidence that three major groups of neurons, those expressing the Ca 2+ -binding protein parvalbumin (PV), those expressing the neuropeptide somatostatin (SST), and those expressing 5HT3aRs account for nearly 100% of GABAergic neurons in somatosensory (S1) cortex.”
contribution — evidence— “This analysis revealed that 5HT3aR neurons account for ~30% of the total population of GABAergic neurons, and that three group of neurons, those expressing PV, SST, and 5HT3aR, account for nearly all, if not all, GABAergic interneurons in primary somatosensory cortex”
transferfrom transgenic mouse engineering: a bacterial artificial chromosome reporter line used to make an uncountable population countable— “There are no antibodies to the 5HT3a receptor available, precluding the use of IHC to determine the size of the 5HT3aR-expressing interneuron population and estimate its contribution to the total interneuron family. The availability of a GFP mouse line that reliably reports the presence of 5HT3a receptors allowed us to characterize this…transfers[0]
transferfrom developmental fate mapping: derivation from different areas during development, offered as a feature arguing for a true delineation between two marker-defined Martinotti subtypes— “Another feature arguing for a true delineation between SOM+/CR− and SOM+/CR+ Martinotti cells is evidence suggesting that they are derived from different areas during development, with the SOM+/CR+ population mainly arising from the dorsal Nkx6-2-positive region of the MGE”transfers[1]
mechanismexcitatory synapses onto Martinotti cells facilitate, so sustained firing of a single pyramidal cell builds up enough drive to make the Martinotti cell fire and inhibit pyramidal cells across layers and columns— “As a result of this feature, repetitive activity in a single pyramidal cell can drive a Martinotti cell to fire and provide feedback inhibition to pyramidal neurons across layers and columns ( Kapfer et al., 2007 ; Silberberg and Markram, 2007 ).”mechanisms[0]
mechanismbecause those inputs facilitate, the strength of Martinotti-mediated feedback inhibition grows with the rate and duration of presynaptic discharge— “Given the facilitating dynamics of Martinotti cell excitatory inputs, the feedback inhibition mediated by these neurons will increase as a function of rate and duration of presynaptic discharge.”mechanisms[1]
mechanismthe delay between thalamocortical excitation of pyramidal cells and disynaptic inhibition from FS cells opens a brief integration window that limits temporal summation— “The latency between the onset of the TC excitation of excitatory cells and the onset of feedforward inhibition from FS cells results in a brief time window during which the excitatory neurons can integrate TC inputs.”mechanisms[2]
mechanismionotropic serotonin and acetylcholine receptors let neuromodulatory systems recruit 5HT3aR interneurons fast enough to be gated by brain state and behavioral context— “Perhaps, neuromodulatory systems rapidly engage these INs during specific brain states and behavioral contexts that are linked to these neuromodulators.”mechanisms[3]
mechanisma locally different chloride concentration at the axon initial segment shifts the GABA-A reversal potential, so chandelier-cell GABA release depolarizes rather than inhibits the pyramidal cell— “It was recently shown that postsynaptic responses to GABA release from these neurons are depolarizing because of changes in Cl − concentration, and hence the reversal potential of GABA A receptors, at the pyramidal cell AIS, the target of chandelier cell axons, and may in fact be excitatory ( Szabadics et al., 2006 ; Woodruff et al., 2009…mechanisms[4]
mechanismneurogliaform axonal varicosities lacking classical synaptic contacts still hyperpolarize neighbours, implying GABA acts by volume release into the extracellular space— “These results led to the suggestion that neurogliaform cells influence target neurons by volume release of GABA ( Olah et al., 2009 ).”mechanisms[5]
mechanismthe low input resistance of X94 SST cells prevents a single excitatory cell from driving them unless a muscarinic agonist raises their excitability— “As a result of their lower input resistance, X94 cells are usually not driven to fire by repetitive activity in a single excitatory cell; however, the cells can be excited if the excitatory input is delivered in the presence of a muscarinic agonist (Xu and Rudy, unpublished observations).”mechanisms[6]
mechanismfast-spiking basket cells fire sustained high-frequency trains with the lowest input resistance and fastest membrane time constant of all interneurons, which is what makes their inhibition fast— “FS cells fire sustained high-frequency trains of brief APs with a large and fast AHP and with little spike frequency adaptation. Near threshold, they fire abrupt episodes of nonadapting repetitive discharges. They have the lowest input resistance and the fastest membrane time constant of all interneurons, a feature that contributes to ensure…mechanisms[7]
mechanismexcitatory synapses onto fast-spiking cells depress while those onto Martinotti cells facilitate, which is the key functional difference between the two groups— “Excitatory inputs onto Martinotti cells are generally strongly facilitating, which is a key feature that distinguishes these interneurons from FS neurons”mechanisms[8]
mechanismbecause of that facilitation, repetitive firing of a single pyramidal cell can drive a Martinotti cell and produce feedback inhibition across layers and columns— “As a result of this feature, repetitive activity in a single pyramidal cell can drive a Martinotti cell to fire and provide feedback inhibition to pyramidal neurons across layers and columns”mechanisms[9]
mechanismthe two groups may therefore be recruited at opposite ends of network activity, one when activity is high and the other transiently when it is low— “These interneurons might be activated preferentially during periods of increased network activity in contrast to FS cells, which might be transiently activated preferentially when network activity is low.”mechanisms[10]
mechanism5HT3aR interneurons are heterogeneous but all are potently modulated by ionotropic serotonin receptors, and no response was seen in PV or SST cells— “Although 5HT3aR interneurons are heterogeneous, they are all potently modulated by ionotropic serotonin receptors ( Lee et al., 2010 ). Local somatic application of mCPBG, a 5HT3aR-selective agonist, to EGFP-positive neurons evoked fast and robust depolarization in more than 40 cells tested throughout all layers and including all the subtypes…mechanisms[11]
mechanismneurogliaform cells may act by volume release of GABA rather than through classical synaptic contacts— “It was recently observed that neurogliaform axonal varicosities containing synaptic vesicles were often not associated with classical synaptic contacts, although neurogliaform cells produced hyperpolarizing responses in a large fraction of neighboring neurons. These results led to the suggestion that neurogliaform cells influence target…mechanisms[12]
builds-on Lee et al. (2010)— “The availability of a GFP mouse line that reliably reports the presence of 5HT3a receptors allowed us to characterize this interneuron population ( Lee et al., 2010 ).”claim_relations[0]
replicates Gonchar and Burkhalter (1997); Kawaguchi and Kubota (1997); Ascoli et al. (2008) - PV and SST as non-overlapping interneuron markers— “Our own studies in mouse have confirmed this conclusion; neurons expressing PV (as detected by immunofluorescence) do not express SST protein and vice versa ( Lee et al., 2010 ).”claim_relations[1]
contradicts McGarry et al. (2010) report of two additional SST subtypes in GIN mice— “Some of the diversity observed in the study by McGarry et al. (2010) may reflect the presence of immature…claim_relations[2]
extends the use of calcium-binding proteins and neuropeptides as markers distinguishing cortical interneuronsclaim_relations[3]
critiques the treatment of VIP, NPY, cholecystokinin, calretinin and calbindin as markers of independent interneuron classes
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claim_relations[4]
builds-on Lee 2010's double in situ hybridisation quantification of the three marker populations
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claim_relations[5]
qualifies the view that parvalbumin cells are the largest interneuron class
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claim_relations[6]
senseTHE PARTITION DEPENDS ON THE ASSAY: PV and SST are non-overlapping by protein immunofluorescence, but under in situ hybridisation up to 16.3 percent of PV cells in layer VI carry SST mRNA, and by RT-PCR a large percentage do
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senses[0]
senseand the conflict is resolved by CHOOSING the assay: protein expression is taken to define the two groups, with the mRNA overlap explained as levels too low to detect
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senses[1]
sensethe 5HT3aR class could not be counted before the tool existed - there are no antibodies to the receptor, so the group had no size until a BAC transgenic line reported it
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senses[2]
sensethe reporter line was validated in both directions: no cell carried EGFP without the transcript, and 99.8 percent of receptor-expressing cells carried EGFP
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senses[3]
senseONE CELL TYPE, FOUR NAMES, IN ONE SENTENCE: regular adapting nonpyramidal, burst spiking nonpyramidal, intrinsic bursting and low-threshold spike all denote the same Martinotti cells
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senses[4]
sensethe claim runs one way only: virtually all PV cells are fast-spiking, which does NOT entail that fast-spiking cells are PV
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senses[5]
notePV —distinct-from→ SST — BY PROTEIN. The same two groups OVERLAP by mRNA, so this edge is only true relative to the assay named in it
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concept_edges[0]
note5HT3aR —part-of→ GABAergic — the third of three groups that together account for nearly all of them
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concept_edges[3]
notePV —part-of→ GABAergic — one of the three groups whose union is claimed to be the whole population
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concept_edges[4]
auditbasket cells —part-of→ PV — Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but basket cells are one of 'two types of PV neurons'; is-a, not part-of.
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concept_edges[8]
auditchandelier cells —part-of→ PV — Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but chandelier cells are one of 'two types of PV neurons'; is-a, not part-of.
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concept_edges[9]
auditMartinotti cells —part-of→ SST — Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but SST expression is 'typically been associated with' Martinotti cells; part-of is loose.
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concept_edges[10]
auditfacilitating —contrasted-with→ depressing — Audit 2026-09-28: DOUBTFUL - read against its span and kept, but the span says FS input synapses are depressing; the facilitating contrast is implied.
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concept_edges[12]
notefacilitating —contrasted-with→ depressing — CRITERION: the synaptic dynamics of the INPUTS, not the cell itself - and even that has a layer VI exception the paper names
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concept_edges[12]
noteVIP —part-of→ 5HT3aR — all VIP cells are in this group, and they are about 40 percent of it
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concept_edges[13]
noteneurogliaform cells —part-of→ 5HT3aR — the group is defined by three exclusions and one inclusion: reelin-positive, VIP-negative, SST-negative
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concept_edges[14]
auditcalretinin —part-of→ SST — Audit 2026-09-28: DOUBTFUL - read against its span and kept, but a third of SST interneurons contain calretinin; part-of is loose.
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concept_edges[15]
notecalretinin —part-of→ SST — A MARKER THAT CROSSES BOUNDARIES: about a third of SST cells carry it, and so do many VIP cells - which is why it cannot define a group
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concept_edges[15]
weightcalretinin —part-of→ SST — 0.4
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concept_edges[15]
for which uselimitation — any quantitative claim about subtypes within the three groups: THE LACK OF SPECIFIC MARKERS MAKES IT DIFFICULT TO ESTIMATE THE FREQUENCIES OF EACH OF THE SUBTYPES
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limitations[0]
for which uselimitation — the subtype proportions specifically: THE SAMPLE IS NOT YET SUFFICIENTLY LARGE TO DEFINITELY ESTABLISH SUBTYPE PROPORTIONS
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limitations[1]
for which uselimitation — the scope of the exhaustive-partition claim itself: the conclusion that these neurons ACCOUNT FOR nearly all remaining interneurons rests mainly on S1, not on neocortex at large
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limitations[2]
for which uselimitation — any functional or circuit claim about the 5HT3aR group: OTHER THAN NEUROGLIAFORM CELLS, LITTLE IS KNOWN ABOUT THE OUTPUT CONNECTIONS AND FUNCTION OF 5HT3AR INTERNEURONS
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limitations[3]
for which uselimitation — the developmental-origin account: IT REMAINS TO BE SHOWN DIRECTLY WHETHER THE NKX5-1 CRE LABELED NEURONS EXPRESS 5HT3AR, and the size of the POA contribution is undetermined
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limitations[4]
for which uselimitation — the same scope as items 0 and 1 - subtype frequencies, not the three-group partition
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limitations[5]
for which uselimitation — any attempt to read this classification against another lab's: THE CORRESPONDENCE BETWEEN THE SUBTYPES ... IS NOT EASY TO ESTABLISH - the categories do not map across investigators
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limitations[6]
for which uselimitation — the same scope as limitations[3] - outputs and function of the 5HT3aR group
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limitations[7]
for which uselimitation — the PV class in question, whose existence may be an age effect: THE PREPONDERANCE OF THIS CLASS OF PV NEURONS IS NOT KNOWN AND HAS NOT BEEN DESCRIBED BY OTHER INVESTIGATORS; PERHAPS BECAUSE BLATOW ET AL. USED 14-DAY-OLD MICE, SOMEWHAT YOUNGER THAN WHAT IS TYPICALLY USED IN THE FIELD
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limitations[8]
for which uselimitation — the two additional SST groups: SEVERAL INVESTIGATORS HAVE USED THE GIN LINE TO STUDY MARTINOTTI CELLS AND HAVE NOT REPORTED THE TWO OTHER GROUPS OF SST NEURONS DESCRIBED BY MCGARRY ET AL.
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limitations[9]
replicationuntested
limitationSubtype frequencies within the three groups cannot be estimated because specific markers are lacking.
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limitations[0]
limitationThe random sample from the 5HT3aR mouse is still too small to fix subtype proportions.
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limitations[1]
limitationThe exhaustive-partition conclusion is established mainly for one cortical area, S1.
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limitations[2]
limitationOutput connectivity and function of the 5HT3aR group are largely unknown apart from neurogliaform cells.
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limitations[3]
limitationThe size of any preoptic-area contribution to the 5HT3aR population is unresolved.
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limitations[4]
limitationsubtype frequencies within the three groups cannot be estimated for want of specific markers, and the samples are not large enough to settle proportions from firing patterns
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limitations[5]
limitationthe correspondence between subtypes described by different investigators is not easy to establish, which the authors say calls for better classification tools
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limitations[6]
limitationoutside neurogliaform cells, little is known about the outputs or function of the 5HT3aR group, which is less understood than the other two
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limitations[7]
limitationthe preponderance of this class of PV neurons is not known and it has not been described by other investigators, perhaps because Blatow et al. used 14-day-old mice and recorded at room temperature
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limitations[8]
limitationtwo extra SST subtypes reported in one study were not seen by others using the same mouse line, and immaturity at the ages used is offered as an explanation
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limitations[9]
Content tags
content-observations: finding · quantity · variable · definition · key-term — grounded in the full text
findingNeurons expressing PV, SST or the 5HT3a receptor together account for nearly all GABAergic interneurons of primary somatosensory cortex, with the 5HT3aR group making up about 30%.
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content_tags.findings[0]
findingPV and SST protein expression define two independent groups of GABAergic interneurons.
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content_tags.findings[1]
findingIn layers I-III the 5HT3aR interneurons outnumber PV interneurons two to one, overturning the assumption that PV cells are the largest interneuron class there.
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content_tags.findings[2]
findingEvery VIP-expressing interneuron in somatosensory cortex also expresses the 5HT3a receptor, placing the whole VIP class inside the 5HT3aR group.
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content_tags.findings[3]
findingThe 5HT3aR agonist mCPBG depolarized every 5HT3aR-positive subtype tested across all layers.
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content_tags.findings[4]
findingPV- and SST-expressing neurons showed no response to the same agonist.
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content_tags.findings[5]
findingThe caudal ganglionic eminence gives rise to about 30% of cortical interneurons, including the bipolar calretinin cells, the entire VIP population and the reelin-positive/SST-negative neurogliaform cells.
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content_tags.findings[6]
findingThe EGFP reporter line had no false positives: no EGFP-positive cell lacked 5HT3aR mRNA.
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content_tags.findings[7]
findingIn olfactory cortex inhibition moves from dendrite to soma during a burst, the reverse of the soma-then-dendrite sequence in neocortex and hippocampus, even though the interneurons themselves look alike.
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content_tags.findings[8]
findingThe marker proportions may not carry over to primates: 74% of GABAergic neurons in macaque V1 express PV, far more than in rodents.
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content_tags.findings[9]
findingthree marker-defined groups account for nearly all, if not all, GABAergic interneurons in primary somatosensory cortex
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content_tags.findings[10]
findingthese two groups of neurons account for 40 and 30% of GABAergic interneurons in somatosensory cortex
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content_tags.findings[11]
findingAN EXHAUSTIVE PARTITION CONSTRAINS EVERY OTHER MARKER: VIP, NPY, CCK, calretinin and calbindin must either label small populations or fall inside the three groups
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content_tags.findings[12]
findingthe third group is the majority interneuron population in layers I to III and outnumbers parvalbumin cells there twofold
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content_tags.findings[13]
findingTHE REPORTER WAS VALIDATED IN BOTH DIRECTIONS: no cell carried EGFP without the transcript, and 99.8 percent of receptor-expressing cells carried EGFP
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content_tags.findings[14]
findingand the transcript was checked against function, with responses to a selective agonist in more than 40 reporter-positive cells
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content_tags.findings[15]
findingneurons expressing PV, as detected by immunofluorescence, do not express SST protein and vice versa
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content_tags.findings[16]
findingBUT BY mRNA THEY DO: under 10 percent of PV cells carry SST transcripts overall, 16.3 percent in layer VI, and a large percentage by RT-PCR of sorted 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.findings[17]
findingand the conflict is settled by choosing protein as the definition, with the transcripts explained as levels too low to detect
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[18]
findingA CATEGORY THAT NEEDED A TOOL TO EXIST: there are no antibodies to the 5HT3a receptor, so this population could not be counted until a reporter line was made
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content_tags.findings[19]
findingbefore that, its size was a qualitative impression from fluorescence
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content_tags.findings[20]
findingONE CELL TYPE, FOUR NAMES IN ONE SENTENCE: burst spiking nonpyramidal, intrinsic bursting and low-threshold spike all name the regular adapting Martinotti cells
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content_tags.findings[21]
findingAND THREE MORE FOR ANOTHER: rapid-adapting, fast-adapting and IS2 name the same VIP subtype
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content_tags.findings[22]
findingLS1 cells correspond to neurogliaform cells, whereas LS2 cells have larger somata and longer, less branching dendrites
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content_tags.findings[23]
findingA CLASS REPORTED ONCE AND NOT REPLICATED: the preponderance of this class of PV neurons is not known and it has not been described by other investigators
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content_tags.findings[24]
findingwith two specific methodological differences offered as the reason: 14-day-old mice and room-temperature recording
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content_tags.findings[25]
findingseveral investigators have used the GIN line and have not reported the two other groups of SST neurons described by McGarry et al., whose diversity may reflect the presence of immature neurons
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content_tags.findings[26]
findingTHE CORRESPONDENCE PROBLEM STATED OUTRIGHT: subtypes described by different investigators cannot easily be matched to one another, which calls for better classification tools
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content_tags.findings[27]
findingand subtype frequencies cannot be estimated at all for lack of specific markers
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content_tags.findings[28]
findingvirtually all parvalbumin cells recorded across several mouse lines were fast-spiking
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content_tags.findings[29]
findingfast-spiking cells have the lowest input resistance and fastest membrane time constant of all interneurons
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content_tags.findings[30]
findingexcitatory synapses onto fast-spiking cells depress, with one layer VI exception that facilitates
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content_tags.findings[31]
findingexcitatory inputs onto Martinotti cells facilitate instead, which is called the key feature distinguishing them from fast-spiking cells
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content_tags.findings[32]
findingso a single pyramidal cell firing repetitively can drive a Martinotti cell and produce feedback inhibition across layers and columns
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content_tags.findings[33]
findingchandelier cell function is contested, with their GABA release possibly depolarising and even excitatory at the axon initial segment
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content_tags.findings[34]
findingabout a third of SST cells contain calretinin, and the two subtypes differ in dendritic field, spike width and connectivity
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content_tags.findings[35]
findingand they arise from different developmental regions, which is offered as evidence that the delineation is real
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content_tags.findings[36]
findingall VIP cells express the 5HT3a receptor and make up about 40 percent of that group
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content_tags.findings[37]
findingthe non-VIP 60 percent are mostly reelin-positive and include over 90 percent of layer I neurons
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content_tags.findings[38]
findingneurogliaform cells uniquely form electrical synapses with other interneuron types rather than only with their own kind
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content_tags.findings[39]
findingand may act by volume release of GABA rather than at classical synaptic contacts
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content_tags.findings[40]
findingevery 5HT3aR subtype responded to a selective serotonin agonist while PV and SST cells did not
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content_tags.findings[41]
findingand 5HT3aR cells are also excited by cholinergic agonists acting on nicotinic receptors, a common property independently of layer location or electrophysiological or morphological subtype
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content_tags.findings[42]
findingFS versus non-FS GABAergic interneurons in superficial layers are differentially modulated depending on brain state and behavioural context, which the authors take to be this group
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content_tags.findings[43]
quantity40 and 30% — share of somatosensory-cortex GABAergic interneurons that are PV-expressing and SST-expressing respectively
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content_tags.quantities[0]
quantity99.8 ± 0.3% — proportion of 5HT3aR-mRNA-expressing neocortical cells that were EGFP positive in the reporter line
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~16.3% — share of layer VI PV cells carrying SST mRNA, the largest PV/SST mRNA overlap found
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~60% — share of all interneurons in layers I-III that are 5HT3aR-expressing
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~40% — share of the 5HT3aR population in S1 that expresses VIP
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]
quantity60% — share of 5HT3aR neurons that do not express VIP
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]
quantityMore than 80% — share of non-VIP 5HT3aR interneurons expressing reelin
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]
quantity10–20% — GABAergic interneurons as a proportion of all cortical neurons in rodents
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]
quantity24–30% — proportion of cortical neurons that are GABAergic in primates, versus about 15% in rodents
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]
quantitynine electrophysiologically different subtypes, of which six accounted for >93% — electrophysiological subtypes among caudal-ganglionic-eminence-derived interneurons, and how much of the population six of them cover
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>16 classes — number of hippocampal CA1 GABAergic interneuron classes in an earlier classification, offered as the comparison standard
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content_tags.quantities[10]
quantity40 and 30% — parvalbumin and somatostatin shares of the interneuron population
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]
quantity~30% — the 5HT3aR share, completing the partition
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content_tags.quantities[12]
quantity99.8 ± 0.3% — receptor-expressing cells that were reporter-positive - the sensitivity of the tag
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[13]
quantity<10% and ~16.3% — PV cells carrying SST mRNA overall and in layer VI - the overlap that protein staining does not show
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[14]
quantity~60% of all interneurons — the 5HT3aR share within layers I to III
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[15]
quantity~40% — VIP share of the 5HT3aR group
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content_tags.quantities[16]
variableLocal somatic application of mCPBG (independent)
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content_tags.variables[0]
variableinput resistance
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content_tags.variables[3]
variablefacilitating
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content_tags.variables[4]
definitionbasket cells and chandelier cells
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content_tags.definitions[1]
definitionMartinotti cells
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content_tags.definitions[2]
definitiongenetic inducible fate mapping (GIFM)
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content_tags.definitions[4]
definitionmultipolar bursting
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content_tags.definitions[5]
definitionlate spiking (LS) firing pattern
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content_tags.definitions[6]
definitionfast-spiking
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content_tags.definitions[7]
definitionMartinotti cells
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content_tags.definitions[8]
definitionneurogliaform cells
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content_tags.definitions[9]
definition5HT3aR
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content_tags.definitions[10]
key-termsPV, SST, 5HT3aR, GABAergic, basket cells, chandelier cells, Martinotti cells, X94, neurogliaform cells, VIP, fast-spiking, IHC, ISH, EGFP, calretinin, reelin, input resistance, serotonin
Statistics — cross-field join keys
field-invariant statistical terms, used in their statistical sense (gated on a number / symbol / test). A p-value or a standard deviation means the SAME thing in physics, biology, psychology and sociology — so these are the strongest cross-field join keys. Grounded verbatim.
double ISH
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content_tags.statistics[0]
Second readings
a facet read a second time, independently, from its own sentence — and whether the two readings agree
methodreview — a second reading reaching the same value; recorded: review
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alternatives.method
phenomenona cortical interneuron population that had resisted exhaustive classification — a second reading DIFFERING from the recorded value; recorded: neocortical GABAergic interneuron diversity
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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.

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