Tonotopic organization of human auditory cortex

Humphries, Liebenthal, Binder · NeuroImage · 2010 · neuroscience · 10.1016/j.neuroimage.2010.01.046 · record Humphries2010-tonotopic-organization-of-human-auditory-cor
tag layer · index · concepts · authors · עברית
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. Replication status is 'contested' rather than 'replicated' because the paper both claims confirmation of two mirror-symmetric gradients and states that the literature disagrees — 'Quotation withheld' and 'Quotation withheld' The gradient count is corroborated; the orientation is disputed. The paper also reports high between-subject variability ('The maps in our study did show a high degree of variability across subjects and across hemispheres.'), which I treated as a result rather than a limitations entry since it is presented as a finding supporting prior cytoarchitectonic work. Homology to macaque areas is stated as likely, not demonstrated, so I did not encode it as a claim relation to specific macaque papers. 2026-08-12 and 2026-08-14 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.
How to read this page. The article itself is not reproduced here — this paper is not cleared for redistribution, so what follows is the tag layer alone. The evidence sentences are withheld with the article. The table at the foot lists every tag the record carries; each row names the facet it belongs to, and the whose words column says whether the tag records the paper's own wording or the tagger's sentence about the paper. Every tag links to each other paper in the corpus carrying it. The machine-readable edition of the same thing is the TEI file beside this one, where the tags live in standOff, and the article is at its publisher via the link below. 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 WITHDRAWN AND REPLACED — the entry was wrong, and a corrected version of it appears in the entries below.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.
Other fields define these differently the same word, defined another way in another discipline
fmri 2 fields

Tags on this paper

Every tag the record carries, each linking to every other paper in the corpus that carries it. A tag appears here whether or not its words occur in the article — the spans below are only the ones a sentence in this paper licenses. Of the 21 concept tags on this paper, 2 are grounded in a quoted sentence. All carry the tagger's gloss of what the term means in this paper, which is not something the article can license.
tonotopy cochleotopy frequency-selective response F test two principal gradients posterior lateral gradient area CL posterior parabelt macaque areas A1 and R core belt surface-based volume-based analysis cortical folding physical proximity retinotopic gradients receptive field gradients in auditory cortex planum temporale tuning bandwidth area CM cytoarchitectonic cortical folding pushes the anterior and posterior high-frequency zones close together in 3-D, so volume-based smoothing and inter-subject variation blur them into one, hiding the perpendicular gradients from earlier studies flattening the superior temporal plane onto a surface model pulls the buried sulcal regions apart, which is what makes the perpendicular topology visible Heschl superior temporal gyrus mirror-symmetric permutation test frequency of maximum response mean BOLD signal general linear model A general linear model F-test F-tests multiple comparison correction ANOVA one-way ANOVA non-parametric permutation test correlation mean between-session correlation coefficient F test across six frequency conditions cluster thresholding between-session correlation coefficient fmri

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second readingalternativesan independent re-reading of a facet, recorded whether or not it agrees
relation to other workclaim_relationshow this paper stands to another: agrees, contradicts, extends, qualifies
claim typeclaim_typethe shape of the claim: existence, mechanism, method, critique, prediction, null
concept edgeconcept_edgesan asserted relation between two concepts, with the sentence asserting it
conceptconceptsan idea the paper works with, quoted where the paper uses it
content tagcontent_tagsa finding, definition, quantity, statistic or variable named in the paper
contributioncontributionwhat the paper claims to add
controlcontrolsan experiment run to eliminate a rival explanation
limitationlimitationswhat the paper says its evidence cannot support
mechanismmechanismshow the reported effect is said to come about
methodmethodhow the paper produced its evidence
object of studyobject_of_studywhat the paper is about — the thing it investigates
phenomenonphenomenonthe effect or regularity under study
research questionresearch_questionthe question the paper sets itself
sensesensesa distinct use of a term, quoted where the paper fixes it
transfertransfersa method or concept carried in from another field

The paper

The full text is not reproduced here. This article is not cleared for redistribution, so the page carries the tag layer only. Its evidence sentences are withheld; the grounding status remains with each tag, and the article itself is at https://doi.org/10.1016/j.neuroimage.2010.01.046. The reading view exists for the papers whose licence permits it.

Every tag on this page

alternatives 2 · claim_relations 10 · claim_type 1 · concept_edges 8 · concepts 2 · content_tags 45 · contribution 1 · controls 1 · limitations 12 · mechanisms 11 · method 1 · object_of_study 1 · phenomenon 1 · research_question 1 · senses 6 · transfers 2

Relations on this page carry a quotation for the claim. Where a relation was separately evidenced — and so tested against the vocabulary for its type — the row says so; none of 8 relations here carry that mark. The rest are the tagger’s reading of the sentence quoted beside them.

facettagfieldconf.whose words
object_of_studythe spatial arrangement of frequency-selective responses in human auditory cortex
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object_of_studythe paper's words
research_questionhow many tonotopic gradients human auditory cortex contains, how they are oriented relative to HG, and how far they vary across subjects
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research_questionthe paper's words
contributiontwo mirror-symmetric gradients running perpendicular to HG rather than along it, a third smaller gradient on lateral posterior STG, and a methodological diagnosis of why the previous literature disagreed
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contributionthe paper's words
claim_typeexistence
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claim_typethe paper's words
phenomenontonotopic organization of human auditory cortex
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phenomenonthe paper's words
methodfmri
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also in: fmri
methodthe paper's words
mechanismsmechanisms
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mechanisms[0]the tagger's words
mechanismsmechanisms
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duplicate of: mechanisms[3]
mechanisms[1]the tagger's words
mechanismscortical folding puts the anterior and posterior high-frequency zones physically close together, so volume-based analysis and smoothing blur them into one
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duplicate of: mechanisms[0]
mechanisms[2]1.0the tagger's words
mechanismsflattening the superior temporal plane separates regions that are adjacent in 3-D, making gradients perpendicular to the gyrus visible
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mechanisms[3]1.0the tagger's words
mechanismssparse sampling: the scanner runs only in a 1.6 s silent gap after the 8 s tone sequence, so scanner noise never overlaps the stimulus
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mechanisms[4]1.0the tagger's words
mechanismsstochastic alternation between two- and three-tone bursts holds the cortical response up, since auditory neurons adapt after onset
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mechanisms[5]0.95the tagger's words
mechanismstone ratios chosen so the composite produces no harmonic relationship and no missing-fundamental pitch
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mechanisms[6]1.0the tagger's words
mechanismsbest frequency is interpolated between the six tested bands by weighting adjacent conditions, giving finer resolution than the design has
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mechanisms[7]1.0the tagger's words
mechanismslandmark-based surface alignment rather than volumetric alignment, for spatial precision in the temporal lobe
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mechanisms[8]1.0the tagger's words
mechanismsnon-parametric permutation testing because eight subjects will not support a parametric group test
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mechanisms[9]1.0the tagger's words
mechanismsseveral sessions per subject, to buy single-subject statistical power and a test-retest estimate at the same time
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mechanisms[10]1.0the tagger's words
limitationsThe core/belt boundary drawn on the homology map cannot be established from frequency responses alone and is an estimate imported from macaque anatomy and human cytoarchitecture.
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what this limits: the core/belt boundary drawn on the map: THE EXACT BOUNDARY BETWEEN CORE AND BELT CANNOT BE DETERMINED BASED SOLELY ON FREQUENCY RESPONSE, THUS THIS LINE IS AN ESTIMATE GUIDED BY THE KNOWN TOPOGRAPHICAL ORGANIZATION IN THE MACAQUE
limitations[0]the tagger's words
limitationsThe absence of a gradient corresponding to macaque area RT may be a sensitivity failure of the stimuli rather than evidence that the area is absent in humans.
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what this limits: the claimed absence of an RT-like gradient: THE LACK OF FREQUENCY-SELECTIVE ACTIVATION IN THIS REGION COULD BE DUE TO LOW SENSITIVITY TO THE STIMULI USED IN THE CURRENT STUDY
limitations[1]the tagger's words
limitationsThe sample was small enough to force non-parametric permutation testing for the group analysis.
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what this limits: the group significance test, and the paper says what it did about it: Quotation withheld
limitations[2]the tagger's words
limitationsthe tested range truncates the tuning estimate, so points preferring 200 or 6400 Hz were excluded from that analysis
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what this limits: tuning estimates at the edges of the tested range: POINTS WERE ALSO EXCLUDED IF THEIR LARGEST RESPONSE WAS TO THE LOWEST (200 Hz) OR HIGHEST (6400 Hz) FREQUENCY
limitations[3]1.0the tagger's words
limitationsan absence the authors decline to resolve: no anterior RT-like gradient, which may be the stimuli or may be the species
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what this limits: the same scope as limitations[1], left open: ALTERNATIVELY, IT IS POSSIBLE THAT AREA RT DOES NOT EXIST IN HUMANS - a sensitivity failure and a real absence are not distinguished
limitations[4]1.0the tagger's words
limitationsthe sharper-tuning reading is undercut by the authors themselves, because the effect tracks overall response strength
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what this limits: the sharper-tuning reading: THESE PATTERNS GENERALLY APPEAR TO BE CORRELATED WITH THE OVERALL STRENGTH OF THE RESPONSE
limitations[5]1.0the tagger's words
limitationsthe core/belt boundary cannot be fixed from frequency response alone, so the line drawn is an estimate imported from other evidence
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what this limits: the same scope as limitations[0] - the core/belt line, imported from macaque and cytoarchitecture rather than measured here
limitations[6]1.0the tagger's words
limitationsapparent parietal operculum activation is an artifact of volume-to-surface mapping, not a finding
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what this limits: the parietal operculum activation, which is not a finding: THIS ACTIVATION IS PRIMARILY AN ARTIFACT OF THE MAPPING BETWEEN VOLUME AND SURFACE SPACES DUE TO PARTIAL VOLUME EFFECTS
limitations[7]1.0the tagger's words
limitationshigh variability across subjects and hemispheres in where the low-frequency border between gradients falls
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what this limits: any claim about where the border between gradients falls: THE LOCATION OF THE LOW-FREQUENCY BORDER BETWEEN THE TWO GRADIENTS VARIED IN RELATION TO HG, with A HIGH DEGREE OF VARIABILITY ACROSS SUBJECTS AND ACROSS HEMISPHERES
limitations[8]1.0the tagger's words
limitationsinter-session variability attributed partly to head movement and partly to unmeasured attention and alertness
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what this limits: voxel counts and preferred frequency across sessions: SOME INTER-SESSION VARIABILITY WAS SEEN IN THE NUMBER OF SIGNIFICANTLY ACTIVATED VOXELS AND THEIR PREFERRED FREQUENCY
limitations[9]1.0the tagger's words
limitationseight subjects, seven of them male
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what this limits: the population every map describes: FMRI DATA WERE COLLECTED FROM 8 RIGHT-HANDED SUBJECTS (7 MALE, 1 FEMALE; AGES 20-37 YEARS)
limitations[10]0.85the tagger's words
limitationsno task was performed, so attentional state during scanning is uncontrolled by design
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what this limits: the attentional state the tonotopic maps were measured in: SUBJECTS WERE INSTRUCTED TO LIE STILL AND LISTEN TO THE TONES. NO SPECIFIC TASK WAS PERFORMED DURING THE EXPERIMENT
limitations[11]0.8the tagger's words
transfersthe core/belt field layout, used as the template against which a human fMRI map is read and labelled
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transfers[0]1.0the tagger's words
transfersretinotopy used as the contrast case for how a receptive-field gradient behaves at an areal boundary
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transfers[1]1.0the tagger's words
controlsthe intensity of every tone sequence normalised to A-weighted 76.3 dB
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eliminates: a loudness difference between sequences - otherwise a tonotopic response could be a response to how loud each frequency happened to be · outcome (stated by the tagger, no quotation): held
controls[0]0.85the tagger's words
conceptscortical folding
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concepts[13]the paper's words
conceptsphysical proximity
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concepts[14]the paper's words
sensestonotopy - a gradient of preferred frequency mirroring the cochlea; explicitly a map of one stimulus dimension, not of any other response property
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senses[0]1.0the tagger's words
sensesgradient - as a field bounded by high and low bands, not as a line between two poles; the paper says this reading is itself a source of the literature's disagreement
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senses[1]1.0the tagger's words
sensesfrequency-selective - defined operationally as a significant F test across the six tested frequencies, carrying no claim about tuning shape
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senses[2]1.0the tagger's words
sensestuning bandwidth - here a ratio of preferred to non-preferred BOLD amplitude, which the paper scare-quotes and then declines to read as tuning width
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senses[3]1.0the tagger's words
sensescore and belt - cytoarchitectonic and connectional divisions, explicitly not divisions defined by the frequency map being measured
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senses[4]1.0the tagger's words
sensescorresponds to / homologous to - used hedged throughout for human-macaque field matches, never as identity
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senses[5]0.95the tagger's words
alternativesmethod: fMRI with sparse sampling, six multi-tone frequency bands from 200 to 6400 Hz, analysed on flattened cortical surfaces with landmark-based alignment
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a second reading DIFFERING from the recorded value. Recorded: fmri — note: a second reading, verbatim-verified, disagreeing with the value on the record. Not applied - a person decides.
alternatives.methodthe tagger's words
alternativesphenomenon: tonotopy - a cortical gradient of preferred frequency mirroring the cochlea
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a second reading DIFFERING from the recorded value. Recorded: tonotopic organization of human auditory cortex — note: a second reading, verbatim-verified, disagreeing with the value on the record. Not applied - a person decides.
alternatives.phenomenonthe tagger's words
claim_relationsreplicates → Formisano et al. (2003); Talavage et al. (2004); Woods et al. (2009)
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claim_relations[0]the tagger's words
claim_relationscontradicts → Formisano et al. (2003), on the orientation of the gradients relative to HG
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differs in: the ORIENTATION of the gradients relative to HG: THESE GRADIENTS ARE ORIENTED APPROXIMATELY ALONG THE AXIS OF HG, WHEREAS THE GRADIENTS WE OBSERVED WERE PERPENDICULAR TO THE LONG AXIS OF HG
claim_relations[1]the tagger's words
claim_relationscontradicts → Woods et al. (2009), on labelling the posterior lateral gradient as parabelt
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differs in: where the parabelt is and whether it is tonotopic at all: THERE IS LITTLE EVIDENCE FOR TONOTOPIC ORGANIZATION IN THE PARABELT OF MONKEYS, and RECENT HUMAN CYTOARCHITECTONIC DATA SUGGEST THAT THE PARABELT IS LOCATED MORE VENTRALLY IN THE UPPER BANK OF THE SUPERIOR TEMPORAL SULCUS
claim_relations[2]the tagger's words
claim_relationspartially-supports → Formisano et al. 2003: two mirror-symmetric gradients, but running along the axis of HG
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claim_relations[3]1.0the tagger's words
claim_relationsrefines → Talavage et al. 2004: three gradients described as narrow lines between high and low poles
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claim_relations[4]0.9the tagger's words
claim_relationssupports → Woods et al. 2009: one low-frequency area on HG flanked by two high-frequency areas
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claim_relations[5]1.0the tagger's words
claim_relationscontradicts → Woods et al. 2009: the posterior lateral field is parabelt
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differs in: which area the same patch of cortex IS - the two papers show A SIMILAR DIAGRAM and label it differently: AREA CL here, POSTERIOR PARABELT there, and the criterion offered is that IN THE MONKEY, THIS GRADIENT DOES NOT EXTEND INTO ADJACENT AREAS; THEREFORE, ITS BOUNDARIES ARE EASILY DETERMINED
claim_relations[6]1.0the tagger's words
claim_relationscontradicts → the early two-frequency studies: a single gradient running along the axis of HG
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differs in: the analysis method, named as decisive across the whole prior literature: ONE THAT WE BELIEVE IS CRITICAL IS THAT Quotation withheld
claim_relations[7]1.0the tagger's words
claim_relationsqualifies → their own reading that these central regions are more sharply tuned
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differs in: which side of the difference moves: the sharper tuning is DRIVEN PRIMARILY BY INCREASES IN RESPONSE TO THE PREFERRED FREQUENCY RATHER THAN DECREASES IN THE RESPONSE TO THE NON-PREFERRED FREQUENCIES, so the pattern IS CORRELATED WITH THE OVERALL STRENGTH OF THE RESPONSE and need not be sharper tuning
claim_relations[8]1.0the tagger's words
claim_relationssupports → macaque evidence that area CM prefers higher than average frequencies without a gradient
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claim_relations[9]0.95the tagger's words
concept_edgestonotopy —same-as→ cochleotopy
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strength of the relation: 1 · note: given as alternate names in one clause, unhedged - a positive control for the join key
also in: tonotopy · cochleotopy
concept_edges[0]1.0the tagger's words
concept_edgesfrequency-selective response —operationalised-as→ F test
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strength of the relation: 1
concept_edges[1]1.0the tagger's words
concept_edgessurface-based —contrasted-with→ volume-based analysis
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differs in: THE AXIS IS THE ANALYSIS METHOD, AND IT IS OFFERED AS THE EXPLANATION OF THE DISAGREEMENT. 'Quotation withheld' The authors name the one difference they think decides the result out of many they could have named - which is the analyst decision this project exists to make legible. · strength of the relation: 1 · note: the contrast the paper says explains the whole literature's disagreement
concept_edges[2]1.0the tagger's words
concept_edgescortical folding —causes→ physical proximity
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direction on the measure: increases · strength of the relation: 0.95
concept_edges[3]1.0the tagger's words
concept_edgesposterior lateral gradient —same-as→ area CL
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strength of the relation: 0.65 — the record marks this weak · note: most likely corresponds to Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but the gradient 'MOST LIKELY corresponds to' area CL; same-as is hedged.
concept_edges[5]1.0the tagger's words
concept_edgesposterior lateral gradient —distinct-from→ posterior parabelt
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strength of the relation: 0.85 · note: a labelling dispute with Woods et al., settled by appeal to a different evidence type
concept_edges[6]1.0the tagger's words
concept_edgescore —distinct-from→ belt
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differs in: THE AXIS IS WHAT DEFINES THE BOUNDARY. 'Quotation withheld' The two regions are not distinguished by the property the paper measures - they are distinguished by a different property entirely, so a tonotopic result cannot confirm or refute the division it is described against. · strength of the relation: 1 · note: the boundary is stipulated from cytoarchitecture and connectivity, not from the phenomenon being mapped
also in: core · belt
concept_edges[7]1.0the tagger's words
concept_edgesretinotopic gradients —contrasted-with→ receptive field gradients in auditory cortex
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strength of the relation: 1 · note: a structural contrast between sensory systems sharing almost no vocabulary
concept_edges[8]1.0the tagger's words
content_tagsgeneral linear model
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content_tags.statistics[0]the tagger's words
content_tagsF-test
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also in: F-test
content_tags.statistics[1]the tagger's words
content_tagsmultiple comparison correction
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content_tags.statistics[2]the tagger's words
content_tagsANOVA
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also in: ANOVA
content_tags.statistics[3]the tagger's words
content_tagspermutation test
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about this quote: QUOTE RECOVERED FROM THE PAPER'S OWN CHARACTERS. The recorded quote was LETTERS-ONLY IDENTICAL to this stretch of the staged text but not an exact substring of it - spaces, hyphens, ligature glyphs or mathematical operators differed, so it could never anchor. This is the file's own text between the same two letters: not produced by a rule about the damage, copied out of the file. Round-trip checked (the recovered span is letters-only equal to the original) and length-checked. The text as originally recorded is kept in evidence as extracted.
content_tags.statistics[4]the tagger's words
content_tagscorrelation
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also in: correlation
content_tags.statistics[5]the tagger's words
content_tagsF test across six frequency conditions
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content_tags.statistics[6]1.0the tagger's words
content_tagscluster thresholding
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content_tags.statistics[7]1.0the tagger's words
content_tagsnon-parametric permutation test
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content_tags.statistics[8]1.0the tagger's words
content_tagsbetween-session correlation coefficient
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content_tags.statistics[9]1.0the tagger's words
content_tagsTwo mirror-symmetric frequency gradients run anterior-posterior from a low-frequency zone on lateral Heschl's gyrus out to high-frequency zones in front of and behind it.
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content_tags.findings[0]the tagger's words
content_tagsThese principal gradients lie perpendicular to HG, overturning the prevailing assumption that they run parallel to it.
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content_tags.findings[1]the tagger's words
content_tagsA third, smaller gradient was found on the lateral posterior superior temporal gyrus.
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content_tags.findings[2]the tagger's words
content_tagsThe human maps are argued to be closely homologous to nonhuman primate auditory cortex, with the two main gradients corresponding to macaque A1 and R.
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content_tags.findings[3]the tagger's words
content_tagsIndividual tonotopic maps were highly reproducible across separate scanning sessions.
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content_tags.findings[4]the tagger's words
content_tagsInspection of unnormalized data suggests the regional differences are driven mainly by a larger response to the preferred frequency rather than a smaller response to non-preferred ones.
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about this quote: QUOTE RECOVERED FROM THE PAPER'S OWN CHARACTERS. The recorded quote was LETTERS-ONLY IDENTICAL to this stretch of the staged text but not an exact substring of it - spaces, hyphens, ligature glyphs or mathematical operators differed, so it could never anchor. This is the file's own text between the same two letters: not produced by a rule about the damage, copied out of the file. Round-trip checked (the recovered span is letters-only equal to the original) and length-checked. The text as originally recorded is kept in evidence as extracted.
content_tags.findings[5]the tagger's words
content_tagstwo mirror-symmetric gradients run roughly perpendicular to HG, not parallel as previously assumed
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content_tags.findings[6]1.0the tagger's words
content_tagsa low-frequency zone on lateral HG is flanked anteriorly and posteriorly by high-frequency zones in every subject
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content_tags.findings[7]1.0the tagger's words
content_tagsa third, smaller gradient runs along lateral posterior STG, mainly in the left hemisphere
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content_tags.findings[8]1.0the tagger's words
content_tagsfrequency-selective responses were confined to the superior temporal plane in both hemispheres
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content_tags.findings[9]1.0the tagger's words
content_tagsmaps are highly reproducible across sessions within a subject
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content_tags.findings[10]1.0the tagger's words
content_tagsthe unnormalized data suggest the difference is driven mainly by a larger preferred response rather than a smaller non-preferred one
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content_tags.findings[11]1.0the tagger's words
content_tagsno distinct frequency gradient in area CM, agreeing with macaque evidence for an overall high-frequency preference there
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content_tags.findings[12]1.0the tagger's words
content_tagsprior imaging results and their interpretations varied considerably
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content_tags.findings[13]1.0the tagger's words
content_tagsfour previous studies reached four different conclusions, one of them denying the gradients are gradients at all
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WHOSE RESULT THIS IS: one study reported - THE EVIDENCE FOR THIS ROW ATTRIBUTES THE WORK TO SOMEBODY ELSE. The cited name is the subject of a result verb and the sentence carries no first-person marker, so the finding, quantity or definition is the CITED author's rather than this record's. The claim is true and the quote is verbatim - what is wrong is whose result the corpus says it is. Nothing edited, nothing withdrawn: the row is marked so a page can name the source. Where the record is a commentary or review, its claim relations layer usually already names the paper being discussed - the record knows at one layer and forgets at another.
content_tags.findings[14]1.0the tagger's words
content_tagstuning bandwidth
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content_tags.definitions[1]the tagger's words
content_tagsfrequency-selective response
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content_tags.definitions[2]the tagger's words
content_tagstonotopy
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also in: tonotopy
content_tags.definitions[3]1.0the tagger's words
content_tagsfrequency-selective response
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content_tags.definitions[4]1.0the tagger's words
content_tagsfrequency of maximum response
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content_tags.variables[1]the tagger's words
content_tagsmean BOLD signal
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content_tags.variables[2]the tagger's words
content_tags8 — number of subjects scanned, with sex split and age range
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content_tags.quantities[0]the tagger's words
content_tags392 trials total — trials per scanning session, from 7 runs of 56 trials
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content_tags.quantities[1]the tagger's words
content_tags.834 (SD = 0.083) — mean correlation of a subject's tonotopy map between scanning sessions, i.e. test-retest stability
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content_tags.quantities[2]the tagger's words
content_tags20 to 30 mm 3 — range of the per-subject cluster-size threshold used for multiple-comparison correction
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
about this quote: QUOTE RECOVERED FROM THE PAPER'S OWN CHARACTERS. The recorded quote was LETTERS-ONLY IDENTICAL to this stretch of the staged text but not an exact substring of it - spaces, hyphens, ligature glyphs or mathematical operators differed, so it could never anchor. This is the file's own text between the same two letters: not produced by a rule about the damage, copied out of the file. Round-trip checked (the recovered span is letters-only equal to the original) and length-checked. The text as originally recorded is kept in evidence as extracted.
content_tags.quantities[3]the tagger's words
content_tags76.3 dB — A-weighted intensity to which every tone sequence was normalised
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content_tags.quantities[4]the tagger's words
content_tags9.6 seconds — trial length: an 8-second sound followed by a 1.6-second silent gap in which the scan was acquired
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content_tags.quantities[5]the tagger's words
content_tags200, 400, 800, 1600, 3200, 6400 Hz — the six centre frequencies tested
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content_tags.quantities[6]1.0the tagger's words
content_tags8 right-handed subjects, 7 male and 1 female, ages 20-37 — the sample
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content_tags.quantities[7]1.0the tagger's words
content_tags.834, SD 0.083 — mean between-session correlation of the tonotopy maps
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content_tags.quantities[8]1.0the tagger's words
content_tagsbetter than 20 dB HL from 250 to 8000 Hz — audiometric inclusion criterion
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content_tags.quantities[9]1.0the tagger's words
content_tags20 to 30 mm3 — cluster threshold, which varied by subject because smoothness was estimated per subject
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content_tags.quantities[10]1.0the tagger's words
content_tags8 s stimulus then a 1.6 s scanning gap, 9.6 s per trial — the sparse-sampling timing
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content_tags.quantities[11]1.0the tagger's words
content_tags3000 Hz — Formisano's highest frequency, offered as the reason that study may have missed medial anterior high-frequency cortex
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content_tags.quantities[12]1.0the tagger's words
content_tags3600 Hz, 4 Hz presentation rate — Woods' ceiling and rate, against 6400 Hz and 10 Hz here
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content_tags.quantities[13]1.0the tagger's words

Interpretive choices

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