Distinguishing the Neural Correlates of Perceptual Awareness and Postperceptual Processing

Cohen, Ortego, Kyroudis, Pitts · Journal of Neuroscience · 2020 · neuroscience · 10.1523/jneurosci.0120-20.2020 · record Cohen2020-distinguishing-the-neural-correlates-of-perc
tag layer · index · concepts · authors · עברית
Where this record's text came from. faceted 2026-08 by reading the locally held text (html); every evidence string verified as an exact substring of that text before merging. Claim type is null-result rather than critique: the load-bearing finding is the measured absence of the P3b (supported by Bayes factors favouring the null), which the paper then uses critically. Method tagged 'electrophysiology' from the supplied vocabulary; more precisely it is preregistered human EEG/ERP with a behavioural masking and no-report design. Replication status 'replicated' rests on the paper's own words about internal replication - 'Quotation withheld' - not on any independent lab; the paper also notes convergence with earlier no-report work (Pitts et al., 2012, 2014). Note the paper explicitly refuses the stronger claim that its result refutes cognitive theories of consciousness. 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.
1 quotation on this page contains a reference number where the paper printed a superscript. This journal style prints citations as raised numerals — parameters12,13 — and the extraction flattened them into the line, so the sentence reads parameters 12 , 13 . The digits are citation markers and not part of what the author wrote. The quotes keep them for the same reason they keep every other extraction fault: a quote is reproduced exactly or it proves nothing.
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
task 2 fields · report 2 fields · masking 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 27 concept tags on this paper, none is 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.
P3b aware postperceptual report no-report task masking visible masked blank green circle memory test foil conceptual ERP preregistered stopping rule excluded Bayes factor mass univariate data-driven interaction Latin square artifact spontaneous frontoparietal signature The P3b is generated by the postperceptual machinery recruited by the reporting task (categorisation, short-term memory, decision-making), not by conscious perception itself; remove the report and the component disappears even though awareness is unchanged. Standard aware-versus-unaware contrasts confound awareness with reporting because the aware condition alone permits the extra postperceptual steps that unseen trials cannot support. P3b event-related potential no-report paradigm sandwich masking stimulus presence stimulus visibility reporting task repeated-measures ANOVA paired-samples t-test one-tailed paired-samples t test Bayes factor analysis planned Bayesian analyses nonparametric mass univariate permutation analysis nonparametric mass univariate analyses false discovery rate correction for multiple comparisons The false discovery rate (FDR) method mean paired-samples t test electrophysiology

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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
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
unrecordable relationunhoused_relationsa relation the paper asserts that this vocabulary cannot express, with the reason

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/10.1523/jneurosci.0120-20.2020. The reading view exists for the papers whose licence permits it.

Every tag on this page

alternatives 3 · claim_relations 8 · claim_type 1 · concept_edges 6 · content_tags 81 · contribution 1 · controls 2 · limitations 10 · mechanisms 5 · method 1 · object_of_study 1 · phenomenon 1 · research_question 1 · senses 10 · transfers 4 · unhoused_relations 1

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 6 relations here carry that mark. The rest are the tagger’s reading of the sentence quoted beside them.

facettagfieldconf.whose words
object_of_studywhether the P3b tracks what an observer consciously sees or what the observer is asked to report about it
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object_of_studythe paper's words
research_questionwhether the neural difference between aware and unaware conditions measures perception or the postperceptual processing that reporting requires
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research_questionthe paper's words
contributiona large P3b when the same stimuli are reported and none at all when they are not, with Bayesian evidence for the null and a replication without masks
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contributionthe paper's words
claim_typenull-result
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claim_typethe paper's words
phenomenonneural correlates of perceptual awareness
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phenomenonthe paper's words
methodelectrophysiology
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methodthe paper's words
mechanismsmechanisms
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
mechanisms[0]the tagger's words
mechanismsmechanisms
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mechanisms[1]the tagger's words
mechanismswhen stimuli are not perceived such judgments cannot be made, and observers can only report that they did not see anything or provide a random guess
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mechanisms[2]1.0the tagger's words
mechanismsso a difference attributed to awareness may belong to the steps that only the aware condition can perform
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mechanisms[3]1.0the tagger's words
mechanismsthe P3b is concluded to be more tightly linked to carrying out a reporting task than to perceiving the stimulus
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mechanisms[4]1.0the tagger's words
limitationsRepeating each stimulus several times may inflate the incidental memory test's estimate of how often participants were aware of the stimuli.
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what this limits: the awareness rate from the incidental memory test: THESE RESULTS MAY SOMEWHAT OVERESTIMATE HOW FREQUENTLY PARTICIPANTS WERE AWARE ... BECAUSE EACH INDIVIDUAL STIMULUS WAS REPEATED MULTIPLE TIMES
limitations[0]the tagger's words
limitationsNo metacognitive confidence data were collected on the memory tests.
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what this limits: the interpretation of the memory-test responses: WE DID NOT OBTAIN ANY METACOGNITIVE REPORTS ... REGARDING THEIR SUBJECTIVE CONFIDENCE
limitations[1]the tagger's words
limitationsThe exploratory ERP source estimates are imprecise and the design was not optimised for source localisation.
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what this limits: the ERP source estimates only: SOURCE ESTIMATIONS FROM ERP DATA ARE NOTORIOUSLY IMPRECISE, PARTICULARLY IN EXPERIMENTS SUCH AS OURS IN WHICH THE EXPERIMENTAL DESIGN WAS NOT OPTIMIZED TO ISOLATE SOURCES
limitations[2]the tagger's words
limitationsThe study cannot identify alternative signatures of awareness, having been designed only to test the P3b.
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what this limits: any claim about signatures of awareness other than the P3b: THE CURRENT STUDY WAS NOT DESIGNED TO ISOLATE ANY SUCH SIGNATURES
limitations[3]the tagger's words
limitationsthe study was not designed to isolate any remaining signature of awareness, only to test predictions about the P3b
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what this limits: the same scope as limitations[3] - the design tests P3b predictions, nothing else
limitations[4]1.0the tagger's words
limitationsthe masking was severe enough to disrupt early sensory processing, which overestimates the neural difference between seen and unseen
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what this limits: the size of the neural difference between visible and invisible: THE MASKING PROCEDURE WAS SO SEVERE THAT EARLY (PRECONSCIOUS) SENSORY ACTIVITY WAS DISRUPTED ... LEADING TO AN OVERESTIMATION OF NEURAL DIFFERENCES
limitations[5]1.0the tagger's words
limitationsfrontoparietal activation might be present in the no-report condition and simply not visible to EEG
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what this limits: the frontoparietal null in the no-report condition: THERE IS SIGNIFICANT FRONTOPARIETAL ACTIVATION ... BUT WE ARE SIMPLY UNABLE to detect it - absence of evidence from EEG
limitations[6]1.0the tagger's words
limitationsobservers may still have engaged in spontaneous postperceptual processing without being asked to report
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what this limits: the interpretation of the no-report condition itself: WHETHER OUR OBSERVERS ENGAGED IN SPONTANEOUS POSTPERCEPTUAL PROCESSING EVEN IN NO-REPORT CONDITIONS
limitations[7]1.0the tagger's words
limitationsthe memory test may overestimate awareness because stimuli repeated, and the alternative design would underestimate it
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what this limits: the awareness estimate in both directions: repeating the stimulus OVERESTIMATES awareness and the alternative design underestimates it - there is no unbiased version of the measure
limitations[8]1.0the tagger's words
limitationsno metacognitive confidence was collected on the memory test, though foils allowed response bias to be assessed
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what this limits: the same scope as limitations[1], with the partial remedy: no confidence reports, though FOIL items allowed response bias to be assessed
limitations[9]1.0the tagger's words
transfersequal numbers of stimulus and blank trials within each masking condition, so that mask-blank-mask ERPs can be subtracted from mask-stimulus-mask ERPs
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transfers[0]1.0the tagger's words
transfersparticipants count how many times the green circle appeared during each 64-trial block, with a single button-press response at the end of the block
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transfers[1]1.0the tagger's words
transfersa Bayes factor against a specified prior, used to argue for an absence rather than merely fail to reject
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transfers[2]1.0the tagger's words
transfersan unexpected memory test with foils, used as an objective measure of what was consciously seen when no report was collected
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transfers[3]1.0the tagger's words
controlsfalse discovery rate correction applied across every mass univariate test
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eliminates: chance significance arising from the number of comparisons - with a test at every electrode and time point, some will pass at p<0.05 with no effect present at all · outcome (stated by the tagger, no quotation): held
controls[0]0.95the tagger's words
controlsthe experimental design AND the planned analyses registered publicly, before any data were collected
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eliminates: analytic freedom after seeing the data - which analysis, which window, which exclusion. Preregistration is the institutional form of the enumeration control: it removes the choice rather than asking the reader to trust it · outcome (stated by the tagger, no quotation): held
controls[1]0.95the tagger's words
unhoused_relationsP3b → reporting
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THE INDEXING / PROXY RELATION - 'from' STANDS IN FOR 'to'. We have no type for it: 'causes' asserts production, and 'operationalised-as' says the authors CHOSE a measure, whereas a proxy claim says THIS STANDS IN FOR WHAT WE ACTUALLY CARE ABOUT AND WE KNOW IT IS NOT THE SAME THING. Measured at 8% of papers. PRESERVED BECAUSE THE EDGE IT DEFEATED WAS WITHDRAWN. 'P3b --causes--> report' was retracted in an earlier note of ours for turning a tracking relation into a causal one; without this record the paper's actual finding would have left the corpus with the bad edge. 'the P3b DOES NOT TRACK what observers are perceiving, but instead TRACKS what observers are REPORTING' - and the paper's point is that indexing report is NOT being a marker of awareness.
unhoused_relations[0]the tagger's words
sensesTHE SIGNATURE TRACKS THE READOUT, NOT THE THING: the P3b does not track what observers are perceiving, it tracks what they are reporting, and it vanishes entirely when the same stimuli are not reported
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senses[0]1.0the tagger's words
sensesAND EVERY STUDY THAT ESTABLISHED IT SHARED THE STEP THAT CREATES IT: the pattern is widely replicated and routinely cited, and those prior studies always had participants report their experiences
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senses[1]1.0the tagger's words
sensesso replication across a literature is not independent evidence when every study inherits the same procedure - the confound is in the method, not in any one paper
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senses[2]1.0the tagger's words
sensesTHE SAME STIMULI IN BOTH CONDITIONS, WITH ONLY THE TASK CHANGED: all stimulus parameters identical, the key change being what the participant was instructed to do
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senses[3]1.0the tagger's words
sensesTHE NULL IS ARGUED FOR RATHER THAN ASSUMED: Bayesian analyses use the report condition's own effect as the prior, and a second version specifies a minimum effect of interest eight times smaller
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senses[4]1.0the tagger's words
sensesand the design, the analysis windows and the electrode pool were preregistered before any data were collected
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senses[5]1.0the tagger's words
sensesAN INDEPENDENT CHECK ON WHAT WAS SEEN, WITHOUT ASKING: an unexpected memory test after the no-report blocks, with never-presented foils to measure how much of the yes rate is bias
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senses[6]1.0the tagger's words
sensesand both directions of error in that check are named - repeating each stimulus may overestimate awareness, showing each once would underestimate it, and neither design is free
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senses[7]1.0the tagger's words
sensesTHE SECOND EXPERIMENT IS BUILT AGAINST NAMED OBJECTIONS, with what each possible outcome would license stated in advance
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senses[8]1.0the tagger's words
sensesAND THE SCOPE OF THE CONCLUSION IS FENCED: the result rules out one proposed signature and is stated not to disprove the theories that proposed it
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senses[9]1.0the tagger's words
alternativesclaim_type: critique
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a second reading DIFFERING from the recorded value. Recorded: null-result — note: a second reading, verbatim-verified, disagreeing with the value on the record. Not applied - a person decides.
alternatives.claim_typethe tagger's words
alternativesmethod: the same masked stimuli shown in a report block, where observers judged each one, and a no-report block, where they counted an unrelated green circle instead, with incidental memory tests to check what was seen
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a second reading DIFFERING from the recorded value. Recorded: electrophysiology — note: a second reading, verbatim-verified, disagreeing with the value on the record. Not applied - a person decides.
alternatives.methodthe tagger's words
alternativesphenomenon: the P3b: a late centroparietal positivity that appears for stimuli observers are aware of and disappears for stimuli they are not
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a second reading DIFFERING from the recorded value. Recorded: neural correlates of perceptual awareness — note: a second reading, verbatim-verified, disagreeing with the value on the record. Not applied - a person decides.
alternatives.phenomenonthe tagger's words
claim_relationsbuilds-on → Dehaene et al. (2001)
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claim_relations[0]the tagger's words
claim_relationsreplicates → Dehaene et al. (2001)
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claim_relations[1]the tagger's words
claim_relationscontradicts → global neuronal workspace theory's prediction that the P3b is a signature of conscious processing (Dehaene, 2014)
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claim_relations[2]the tagger's words
claim_relationscontradicts → the proposal that the P3b is a neural signature of conscious processing
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claim_relations[3]1.0the tagger's words
claim_relationsreplicates → the sequence of event-related potentials distinguishing visible from masked stimuli reported by Dehaene and colleagues, in the report condition
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claim_relations[4]1.0the tagger's words
claim_relationsqualifies → global neuronal workspace theory, whose core hypotheses are said to survive even though this particular prediction does not
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differs in: THE AXIS IS WHICH PART OF THE THEORY IS AT ISSUE. 'Quotation withheld.' A theory and its diagnostic marker are separated, and only the marker is contested - so a citation reading 'Cohen2020 challenges global workspace theory' asserts more than the paper does, in the sentence where the paper says so.
claim_relations[5]1.0the tagger's words
claim_relationsextends → earlier no-report studies, which used nonstandard awareness manipulations or passive viewing and so carried less weight
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differs in: THE AXIS IS THE STANDARDNESS OF THE AWARENESS MANIPULATION. 'To date, however, Quotation withheld.' The no-report literature already existed and is discounted for its paradigms, not its findings - and this record's [7] makes the mirror-image objection to the REPORT-BASED literature. ONE PAPER OBJECTING TO BOTH SIDES ON THE SAME DIMENSION.
claim_relations[6]1.0the tagger's words
claim_relationscritiques → the entire literature establishing the P3b as a marker, on the ground that all of it required reports
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differs in: THE AXIS IS WHETHER THE TASK REQUIRED A REPORT. 'While this particular neural activation pattern has been widely replicated and continues to be systematically put forth as a possible neural signature of consciousness, these prior studies always had parti[CIPANTS REPORT].' Replication is granted in full and then bounded by a design feature common to every replication - so the weight of the literature is not evidence against the objection, because the objection is about what they all share.
claim_relations[7]1.0the tagger's words
concept_edgesP3b —distinct-from→ aware
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strength of the relation: 1 · note: a robust P3b when the stimuli are reported and none whatsoever when the same stimuli are not
also in: P3b · aware
concept_edges[1]1.0the tagger's words
concept_edgesP3b —operationalised-as→ postperceptual
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strength of the relation: 1 · note: and the conclusion is stated as a comparison of tightness rather than as an identity Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but the P3b is 'more tightly linked with carrying out reporting tasks'; operationalised-as postperceptual is loose.
also in: P3b · postperceptual
concept_edges[2]1.0the tagger's words
concept_edgesno-report —contrasted-with→ report
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strength of the relation: 1 · note: a robust P3b in one and none whatsoever in the other, with everything about the stimulus held identical
also in: no-report · report
concept_edges[5]1.0the tagger's words
concept_edgesno-report —operationalised-as→ green circle
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strength of the relation: 1 · note: counted across a block and reported once at the end, so nothing is judged trial by trial Audit 2026-09-28: DOUBTFUL - read against its span and kept, but the no-report condition used a green-circle counting task; operationalised-as is loose.
concept_edges[6]1.0the tagger's words
concept_edgesmasked —contrasted-with→ visible
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strength of the relation: 1 · note: validated by the reports themselves: nothing seen on 99.6 percent of heavily masked trials, the target seen on 98.2 percent of lightly masked ones
also in: masked · visible
concept_edges[7]1.0the tagger's words
concept_edgesfoil —part-of→ memory test
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strength of the relation: 1 · note: and rejecting them is what separates recognition from a vague sense of familiarity Audit 2026-09-28: DOUBTFUL - read against its span and kept, but foils were part of the memory test design; the span implies it.
also in: foil · memory test
concept_edges[12]1.0the tagger's words
content_tagsrepeated-measures ANOVA
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content_tags.statistics[0]the tagger's words
content_tagspaired-samples t-test
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content_tags.statistics[1]the tagger's words
content_tagsBayes factor analysis
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content_tags.statistics[2]the tagger's words
content_tagsnonparametric mass univariate permutation analysis
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content_tags.statistics[3]the tagger's words
content_tagsfalse discovery rate correction for multiple comparisons
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content_tags.statistics[4]the tagger's words
content_tagsmean
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also in: mean
content_tags.statistics[5]the tagger's words
content_tagsrepeated-measures ANOVA
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content_tags.statistics[6]1.0the tagger's words
content_tagsBayes factor
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also in: Bayes factor
content_tags.statistics[7]1.0the tagger's words
content_tagspaired-samples t test
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content_tags.statistics[8]0.8the tagger's words
content_tagsmass univariate
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content_tags.statistics[9]1.0the tagger's words
content_tagsA robust P3b appeared in the report condition and no P3b at all in the no-report condition.
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content_tags.findings[0]the tagger's words
content_tagsThe predicted visibility-by-reporting-task interaction on P3b amplitude was confirmed, alongside main effects of both factors.
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content_tags.findings[1]the tagger's words
content_tagsBayesian analysis showed the null P3b result in the no-report condition was positive evidence for absence rather than insensitivity.
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content_tags.findings[2]the tagger's words
content_tagsExperiment 2 closely replicated Experiment 1 while addressing remaining concerns about stimulus visibility in the no-report condition.
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content_tags.findings[3]the tagger's words
content_tagsHigh accuracy (78.5%) on a surprise word memory test suggests the unreported stimuli were perceived and encoded at an abstract conceptual level.
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content_tags.findings[4]the tagger's words
content_tagsEarly (70-300 ms) and late (600-1000 ms) visible-versus-invisible ERP differences survived in both conditions, so only the 300-600 ms window was report-dependent.
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content_tags.findings[5]the tagger's words
content_tagsTHE MARKER TRACKS THE READOUT: a robust P3b when observers reported their experience and none whatsoever when they did not
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content_tags.findings[6]1.0the tagger's words
content_tagsand the same pattern held in a second experiment with the masks removed entirely
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content_tags.findings[7]1.0the tagger's words
content_tagsthe pattern is widely replicated and put forward as a signature of consciousness, but all of those studies had participants report their experiences
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WHOSE RESULT THIS IS: prior studies always had participants report - THE SUBJECT OF THIS RESULT IS AN INDEFINITE STUDY, NOT THIS PAPER. 'Previous studies reported', 'studies in guinea pig showed', 'recent studies have reported' - somebody else's work under a common noun rather than a name, with a citation in the sentence and no first-person marker. The quote is verbatim and the claim is true; only the attribution is wrong. FOUND BY MEASURING MY OWN CUE'S RECALL: the first sweep required a NAMED author as the subject ('Sperling (1960) demonstrated') and found 17. Reading eleven citation-bearing findings on 'Plakke2016' by hand showed four the cue could not see - 'A study examining recognition found', 'studies of typical human subjects have demonstrated', 'A follow up study found' - so the named cue's 17 was a floor and not a count. A CUE'S FALSE POSITIVES TELL YOU NOTHING ABOUT ITS FALSE NEGATIVES, and the only way to find these was to read a record's whole layer.
content_tags.findings[8]1.0the tagger's words
content_tagsthe confound is stated structurally: when a stimulus is not perceived no judgement can be made, so the aware condition contains extra steps by construction
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content_tags.findings[9]1.0the tagger's words
content_tagsthe report condition closely replicated the sequence reported by the study being argued against, and then it vanished under the same stimuli and visibility manipulation
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content_tags.findings[10]1.0the tagger's words
content_tagsearly components were present in both conditions and the divergence was late
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content_tags.findings[11]1.0the tagger's words
content_tagsthe interaction between visibility and reporting task was the largest effect in the analysis
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content_tags.findings[12]1.0the tagger's words
content_tagsTHE NULL WAS ARGUED FOR RATHER THAN ASSUMED, with the report condition's own effect supplying the prior
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content_tags.findings[13]1.0the tagger's words
content_tagsand a second Bayesian test set a minimum effect of interest eight times smaller, returning the same answer
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content_tags.findings[14]1.0the tagger's words
content_tagsa data-driven sweep across every electrode and timepoint was run beside the preregistered test
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content_tags.findings[15]1.0the tagger's words
content_tagsand everything found that way is labelled exploratory, after the planned analysis is reported
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content_tags.findings[16]1.0the tagger's words
content_tagsdesign, analysis windows and electrode pool were preregistered before data collection
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content_tags.findings[17]1.0the tagger's words
content_tagswith the window and electrode pool taken from the published literature on the component
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content_tags.findings[18]1.0the tagger's words
content_tagsa stopping rule fixed collection at twenty non-excluded participants
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content_tags.findings[19]1.0the tagger's words
content_tagswith five exclusion criteria stated in advance, including one that excluded nobody
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content_tags.findings[20]1.0the tagger's words
content_tagsthe share of trials removed for blinks and eye movements did not differ significantly between conditions
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content_tags.findings[21]1.0the tagger's words
content_tagsstimulus groups were counterbalanced across participants so no image was tied to a condition
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content_tags.findings[22]1.0the tagger's words
content_tagsequal numbers of stimulus and blank trials in each masking condition allowed the mask's own response to be subtracted
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content_tags.findings[23]1.0the tagger's words
content_tagsall stimulus parameters were identical across conditions, with only the instructed task changing
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content_tags.findings[24]1.0the tagger's words
content_tagsmasking was validated by the reports themselves - nothing seen on 99.6 percent of heavily masked trials
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content_tags.findings[25]1.0the tagger's words
content_tagsAND BY AN INCIDENTAL MEMORY TEST FOLLOWING THE NO-REPORT CONDITION: yes responses 3.8% of the time for stimuli that were masked and 3.1% of the time for foil stimuli
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content_tags.findings[26]1.0the tagger's words
content_tagsBOTH DIRECTIONS OF ERROR IN THAT CHECK ARE NAMED: repeating each stimulus may overestimate awareness, showing each once would underestimate it, and neither design is free
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content_tags.findings[27]1.0the tagger's words
content_tagsand no metacognitive confidence was collected, though foils allowed response bias to be assessed
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content_tags.findings[28]1.0the tagger's words
content_tagsthe second experiment was built against named objections - whether the stimuli were really seen, and whether memory could reflect an iconic trace or mere familiarity
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content_tags.findings[29]1.0the tagger's words
content_tagsWITH WHAT EACH OUTCOME WOULD LICENSE STATED IN ADVANCE for the conceptual memory test
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content_tags.findings[30]1.0the tagger's words
content_tagsword memory accuracy was high (78.5%), suggesting the task-irrelevant stimuli were encoded at an abstract conceptual level
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content_tags.findings[31]1.0the tagger's words
content_tagswith foils rejected in both tests, separating recognition from a vague sense of familiarity
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content_tags.findings[32]1.0the tagger's words
content_tagsin the no-report condition, P3b-ROI voltage did not differ between stimuli and blanks
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content_tags.findings[33]1.0the tagger's words
content_tagsSOMETHING SURVIVES THE MANIPULATION: differences from about 600 to 800 ms appeared in both conditions, distinct from the P3b
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content_tags.findings[34]1.0the tagger's words
content_tagsso differences at 300 to 600 ms depend on the reporting task while earlier and later ones do not
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content_tags.findings[35]1.0the tagger's words
content_tagsthe study is stated not to have been designed to isolate any remaining signature
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content_tags.findings[36]1.0the tagger's words
content_tagsand the masking is acknowledged to be severe enough to overestimate the seen-against-unseen difference
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content_tags.findings[37]1.0the tagger's words
content_tagsTHE SCOPE IS FENCED: the result is stated not to disprove the theories that proposed the marker
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content_tags.findings[38]1.0the tagger's words
content_tagsfrontoparietal activation might be present and simply invisible to this method
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content_tags.findings[39]1.0the tagger's words
content_tagsand the other proposed signatures are explicitly left standing, named as the next thing to test the same way
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content_tags.findings[40]1.0the tagger's words
content_tagswhile one long-standing prediction of global workspace theory is said to be challenged directly
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content_tags.findings[41]1.0the tagger's words
content_tagsthree separate reasons are given that the stimuli were seen without being reported
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content_tags.findings[42]1.0the tagger's words
content_tagsthe standing worry about spontaneous postperceptual processing is named, and answered by noting it would only matter had a P3b been found
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content_tags.findings[43]1.0the tagger's words
content_tagsearlier no-report studies are described as having used nonstandard awareness manipulations or passive viewing
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content_tags.findings[44]1.0the tagger's words
content_tagsand the P3b was chosen because it is the largest and most replicable piece of neural evidence cited by cognitive theories
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content_tags.findings[45]1.0the tagger's words
content_tagsP3b event-related potential
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content_tags.definitions[0]the tagger's words
content_tagsno-report paradigm
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content_tags.definitions[1]the tagger's words
content_tagssandwich masking
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content_tags.definitions[2]the tagger's words
content_tagsno-report
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also in: no-report
content_tags.definitions[3]1.0the tagger's words
content_tagspostperceptual
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content_tags.definitions[4]1.0the tagger's words
content_tagsP3b
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also in: P3b
content_tags.definitions[5]1.0the tagger's words
content_tagsmemory test
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also in: memory test
content_tags.definitions[6]1.0the tagger's words
content_tagsstimulus presence
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content_tags.variables[1]the tagger's words
content_tagsP3b
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also in: P3b
content_tags.variables[5]1.0the tagger's words
content_tagstask
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
also in: task
content_tags.variables[6]0.9the tagger's words
content_tagsvisible
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
also in: visible
content_tags.variables[7]1.0the tagger's words
content_tagsmemory test
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
also in: memory test
content_tags.variables[8]1.0the tagger's words
content_tagsstimulus visibility
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.variables[9]the tagger's words
content_tagsreporting task
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content_tags.variables[10]the tagger's words
content_tagsF (1,19) = 151.13, p < 0.001 — the visibility-by-reporting-task interaction on P3b amplitude in experiment 1
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content_tags.quantities[0]the tagger's words
content_tagsBF(10) of 0.001 — Bayes factor for the no-report P3b against a half-t prior derived from the report condition, i.e. strong support for the null
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content_tags.quantities[1]the tagger's words
content_tags99.6% (SD = 0.5%) — proportion of heavily masked animal/object trials on which participants reported seeing nothing, validating invisibility
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content_tags.quantities[2]the tagger's words
content_tags17.4% — average share of trials discarded for EEG artifacts in experiment 1, leaving about 180 trials per condition
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content_tags.quantities[3]the tagger's words
content_tags20 — preregistered final sample size of experiment 1, reached after exclusions from 33 tested participants
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content_tags.quantities[4]the tagger's words
content_tags99.6% — trials on which heavily masked stimuli were reported as nothing - the validation of invisibility
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content_tags.quantities[5]1.0the tagger's words
content_tags86.3% — yes responses to visible stimuli on the surprise memory test after the no-report blocks, against 3.1 percent for foils
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content_tags.quantities[6]1.0the tagger's words
content_tags69.4% — yes responses to words naming task-irrelevant stimuli, the evidence that meaning was encoded without any report
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content_tags.quantities[7]1.0the tagger's words
content_tagsBF(10)] of 0.001 — Bayes factor for the absence of a P3b in the no-report condition, against a prior taken from the report condition
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content_tags.quantities[8]1.0the tagger's words
content_tagsF (1,19) = 151.13 — the interaction between visibility and reporting task, larger than either main effect
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content_tags.quantities[9]1.0the tagger's words
content_tags300 and 600 ms — the preregistered P3b window, fixed in advance from the published literature
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content_tags.quantities[10]1.0the tagger's words

Interpretive choices

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