Human medial temporal lobe neurons respond preferentially to personally relevant images

Viskontas, Quiroga, Fried · Proceedings of the National Academy of Sciences · 2009 · neuroscience · 10.1073/pnas.0902319106 · record Viskontas2009-human-medial-temporal-lobe-neurons-respond-p
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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. The MTT relation is coded 'extends' because the paper offers new single-neuron evidence said to be 'in line with' that theory rather than testing it; the paper immediately concedes that proponents of the standard consolidation model (MCT) could reinterpret the same data, so this is a hedged alignment, not a decisive test. The comparison with the standard model of consolidation was not coded as 'contradicts' because the paper does not claim to refute it. method is intracranial single- and multi-unit recording in epilepsy patients, which the fixed vocabulary can only render as 'electrophysiology'. 2026-08-12 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.
8 quotations on this page contain 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.
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Other fields define these differently the same word, defined another way in another discipline
standard deviation 3 fields · baseline 2 fields · familiarity 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 24 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.
personal relevance self-reference effect incidental recollection medial temporal lobe hippocampus amygdala entorhinal cortex parahippocampal cortex sparse code selective responsiveness single units multiunits familiarity recollection declarative memory multiple trace theory standard model of consolidation autobiographical memory famous faces unknown faces experimenters landmarks Wave_Clus peri-stimulus time histograms Personally relevant images are linked to more, and more varied, past experiences, so a larger number of MTL neurons are recruited to encode them Viewing a familiar face activates a richer network of associations than an unfamiliar one, and that richer network is what drives extra MTL cells into responding Incidental (unintentional) recollection of the autobiographical network attached to an item is the route by which personal relevance enhances encoding In the amygdala the driver is not personal relevance but a combination of novelty and emotional significance, which is why recently met experimenters outrank long-known family members there depth electrodes epilepsy interspike interval temporal lobe epilepsy criterion of selective responsiveness response to a picture responsive unit multiple trace theory (MTT) The self-reference effect response baseline categories of images category of stimuli proportions of images eliciting responses MTL region median number of spikes chi-squared test t-test a t test comparing the baseline and response period median the median number of spikes across trials standard deviation planned comparisons post-hoc tests p-value χ 2 t test 4(region) × 4(category) χ 2 analysis 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

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/10.1073/pnas.0902319106. 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 7 · content_tags 76 · contribution 1 · controls 2 · limitations 9 · mechanisms 15 · method 1 · object_of_study 1 · phenomenon 1 · research_question 1 · senses 6 · transfers 3

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

facettagfieldconf.whose words
object_of_studywhether single neurons in the human medial temporal lobe are more likely to respond selectively to images that are personally relevant to the patient
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object_of_studythe paper's words
research_questiondoes personal relevance make a stimulus more likely to recruit a selective excitatory response from an MTL cell
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research_questionthe paper's words
contributiongrades selective MTL responsiveness by personal relevance — experimenters and family highest, celebrities intermediate, unknown faces lowest — and finds the gradient differs by MTL region
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contributionthe paper's words
claim_typeexistence
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claim_typethe paper's words
phenomenonpersonal relevance in human medial temporal lobe single-neuron responses
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phenomenonthe paper's words
methodelectrophysiology
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methodthe paper's words
mechanismsmechanisms
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mechanisms[0]the tagger's words
mechanismsmechanisms
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mechanisms[1]the tagger's words
mechanismsmechanisms
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mechanisms[2]the tagger's words
mechanismsmechanisms
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mechanisms[3]the tagger's words
mechanismsthe experimenters themselves are used as a stimulus category, which manufactures personal relevance the authors control rather than having to find it
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mechanisms[4]1.0the tagger's words
mechanismsrelevance is turned into an ordered scale — unknown, famous, family, experimenter — so the prediction is a gradient rather than a single contrast
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mechanisms[5]1.0the tagger's words
mechanismsselectivity is defined by an exclusion rule rather than by a positive criterion: cells responding to more than five image sets are dropped so that promiscuous units cannot dominate the counts
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mechanisms[6]1.0the tagger's words
mechanismsresponsiveness requires three conditions together — a five-SD threshold, a minimum absolute spike count, and a significance test — so no single loose criterion carries a unit through
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mechanisms[7]1.0the tagger's words
mechanismsthe recency contrast is built into the stimulus set: experimenters are recent acquaintances and family remote ones, which turns the design into a test bearing on consolidation theory
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mechanisms[8]1.0the tagger's words
mechanismsthe counterargument to their own consolidation inference is written out by the authors rather than left to a critic
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mechanisms[9]1.0the tagger's words
mechanismsduplicate views of the same person or landmark are dropped so that no category can win by being represented more often
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mechanisms[10]1.0the tagger's words
mechanismsbecause image counts differ by patient and category, the metric is the proportion of images that elicited a response rather than the count
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mechanisms[11]1.0the tagger's words
mechanismsa trivial face/non-face judgment is imposed purely to guarantee attention, not to measure anything
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mechanisms[12]1.0the tagger's words
mechanismsthe amygdala result is read against the grain of the paper's own thesis, as novelty and emotional salience rather than relevance
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mechanisms[13]1.0the tagger's words
mechanismssingle units are separated from multiunits by four spike-train criteria including an explicit refractory-period check
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mechanisms[14]1.0the tagger's words
limitationsPatients were never asked whether the images evoked episodic memories, so the recent-versus-remote memory question cannot be settled by the data.
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what this limits: the recent-versus-remote memory question: BECAUSE WE DID NOT ASK OUR PATIENTS IF THE IMAGES WE SHOWED THEM GENERATED EPISODIC MEMORIES, WE CANNOT ADDRESS THIS ISSUE DIRECTLY WITH OUR CURRENT STUDY
limitations[0]the tagger's words
limitationsResponse counts per MTL region were low, so the regional differences must be read cautiously.
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what this limits: the regional comparisons: response counts per MTL region were low
limitations[1]the tagger's words
limitationsThe null result for landmarks is inconclusive because no personally familiar landmarks were included in the stimulus set.
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what this limits: the landmark null: THOUGH WE DID NOT FIND ANY SIGNIFICANT EFFECTS OF FAMILIARITY WITH RESPECT TO LANDMARKS, WE DID NOT INCLUDE PERSONALLY FAMILIAR LANDMARKS SUCH AS THE PATIENT'S HOME, SCHOOL, OR WORK
limitations[2]the tagger's words
limitationsthe mechanism the whole account rests on — incidental recollection — was never measured
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what this limits: the same scope as limitations[0] - incidental recollection, the mechanism the account rests on, was never measured because patients were not asked
limitations[3]1.0the tagger's words
limitationsthe faces-versus-landmarks asymmetry may be an artefact of the stimulus set, because no personally familiar landmarks were included
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duplicate of: limitations[2] · what this limits: the same scope as limitations[2] - the faces-versus-landmarks asymmetry may be a property of the stimulus set rather than of the regions
limitations[4]1.0the tagger's words
limitationsthe regional comparisons rest on small response counts and the authors say they must be read with caution
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what this limits: the regional comparisons: THE NUMBER OF SIGNIFICANT RESPONSES IN EACH AREA WAS RELATIVELY LOW, AND THEREFORE THESE REGIONAL DIFFERENCES MUST BE INTERPRETED WITH CAUTION
limitations[5]1.0the tagger's words
limitationsimages of the patients themselves produced almost nothing, so the self category had to be merged into family
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what this limits: every result reported for the family category, which silently contains the self: Quotation withheld. THEREFORE, WE DID NOT DIFFERENTIATE BETWEEN PICTURES OF THE SELF AND PICTURES OF FAMILY MEMBERS
limitations[6]1.0the tagger's words
limitationswhether the famous-face responses in hippocampus involve personal recollection is left for future work
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what this limits: the recollection interpretation of the hippocampal responses: FUTURE STUDIES SHOULD ADDRESS THE EXTENT TO WHICH THE SPECIFIC PHOTOGRAPHS ... WERE ACCOMPANIED BY INCIDENTAL RECOLLECTION OF PERSONAL MEMORIES
limitations[7]1.0the tagger's words
limitationselectrode placement was set by clinical criteria
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what this limits: which structures could be observed: PATIENTS WERE STEREOTACTICALLY IMPLANTED WITH 6-14 DEPTH ELECTRODES ... AIMING AT TARGETS SELECTED USING CLINICAL CRITERIA
limitations[8]1.0the tagger's words
transfersthe self-reference effect, imported as the motivating prediction that personally relevant stimuli should recruit more neurons
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transfers[0]0.95the tagger's words
transfersthe sparse-coding expectation, carried across from animal MTL recordings and used to frame what a human selective response means
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transfers[1]0.95the tagger's words
transfersfamous faces and names as a probe of semantic memory integrity, reused here as a graded familiarity stimulus set
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transfers[2]0.95the tagger's words
controlsanatomical electrode locations verified by post-placement MRI and by fusing implantation CT with high-resolution imaging
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eliminates: attributing a response to the wrong medial temporal structure - the verification is imaging taken after the electrodes are in, not the plan they were placed from · outcome (stated by the tagger, no quotation): held
controls[0]0.85the tagger's words
controlsthe order of the pictures and their repetition randomised
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eliminates: order and repetition effects - a fixed sequence would confound picture identity with when it appeared and how often · outcome (stated by the tagger, no quotation): held
controls[1]0.85the tagger's words
sensespersonal relevance — as connection to the self versus as accumulated shared experience; the paper opens on the first and its result rests on the second
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senses[0]0.95the tagger's words
sensesfamiliarity — as long-standing acquaintance (family) versus as recent daily contact (experimenters); the design treats both as personal relevance and finds them equal
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senses[1]1.0the tagger's words
sensesfamiliarity versus recollection — in the models discussed, MTL cortex can support the first alone while the hippocampus is required for the second
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senses[2]1.0the tagger's words
sensesselective — as the cell's own tuning versus as an analysis threshold; here it is the latter, five image sets
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senses[3]1.0the tagger's words
sensesMTL selectivity — as coding a person versus as coding the associations that person carries; the paper argues for the second
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senses[4]0.95the tagger's words
sensesamygdala responsiveness — as personal relevance versus as novelty and emotional salience, which order the same stimuli differently
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senses[5]1.0the tagger's words
alternativesclaim_type: existence
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a second reading reaching the same value. Recorded: existence — note: a second reading reaching the same value from a different sentence. Not applied - a person decides.
alternatives.claim_typethe tagger's words
alternativesmethod: single- and multi-unit recording from depth microwires in four MTL regions while patients viewed images graded by personal relevance, with responsiveness defined by a three-part criterion
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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: sparse selective coding of familiar people by human medial temporal lobe neurons
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a second reading DIFFERING from the recorded value. Recorded: personal relevance in human medial temporal lobe single-neuron responses — 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 → Quian Quiroga, Reddy, Kreiman, Koch and Fried (2005), Nature 435(7045):1102-1107, on selective invariant MTL responses to famous people
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claim_relations[0]the tagger's words
claim_relationsextends → multiple trace theory (MTT) of medial temporal lobe memory function
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claim_relations[1]the tagger's words
claim_relationsextends → Quian Quiroga et al. 2005, that individual MTL neurons respond selectively and invariantly to famous people
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claim_relations[2]1.0the tagger's words
claim_relationsbuilds-on → the self-reference effect literature on encoding enhancement
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claim_relations[3]1.0the tagger's words
claim_relationssupports → multiple trace theory over the standard consolidation model, on the reading that recent and remote acquaintances alike drive hippocampal cells
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claim_relations[4]0.85the tagger's words
claim_relationssupports → models in which MTL cortex supports familiarity while the hippocampus supports recollection
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claim_relations[5]0.85the tagger's words
claim_relationsbuilds-on → evidence that hippocampal cells code relative familiarity after a single presentation
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claim_relations[6]0.95the tagger's words
claim_relationscritiques → the state of the MTL regional division of labour, as unresolved despite extensive study
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claim_relations[7]0.95the tagger's words
concept_edgespersonal relevance —causes→ selective responsiveness
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strength of the relation: 0.8
concept_edges[0]the tagger's words
concept_edgesfamiliarity —distinct-from→ recollection
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differs in: THE AXIS IS WHICH STRUCTURE IS NECESSARY FOR WHICH KIND OF RETRIEVAL. 'Several current theoretical models suggest that MTL CORTEX ALONE CAN SUPPORT FAMILIARITY-BASED MEMORY, WHEREAS THE HIPPOCAMPUS IS NECESSARY FOR THE RETRIEVAL OF EPISODIC INFORMATION, OR RECOLLECTION.' The two processes are not distinguished behaviourally here but by a NECESSITY claim about different tissue - so a lesion that spares MTL cortex is the test, and a task that does not separate the two processes cannot run it. · strength of the relation: 0.95 Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but 'Several current theoretical models suggest' the split; attributed.
concept_edges[1]the tagger's words
concept_edgesmultiple trace theory —contrasted-with→ standard model of consolidation
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differs in: THE AXIS IS WHETHER HIPPOCAMPAL INVOLVEMENT DEPENDS ON THE AGE OF THE MEMORY. 'Whereas the standard model of consolidation (MCT) PREDICTS that over long periods of time, memories eventually become independent of the hippocampus, the idea that this structure is involved in episodic memory retrieval without regard to the age of the memory [is the alternative].' Both models agree the hippocampus retrieves episodic memories; they differ on whether that stops. A bare 'contrasted-with' loses the variable - memory age - that any experiment would have to manipulate to tell them apart. · strength of the relation: 1
concept_edges[2]1.0the tagger's words
concept_edgeshippocampus —part-of→ medial temporal lobe
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strength of the relation: 1
concept_edges[3]the tagger's words
concept_edgesEVIDENCE CORRECTED (RE-GROUNDED) · experimenters —contrasted-with→ famous faces
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EVIDENCE CORRECTED: RE-GROUNDED. The old span was about familiarity in general. This sentence names both and carries the contrast WITH ITS STATISTICS AND ITS DIRECTION - family members and experimenters 'DID NOT DIFFER (P > 0.5), though together they were more…'. It states a non-difference and a difference in one sentence, and the edge records the second. — strength of the relation: 1 Audit 2026-09-28: DOUBTFUL - read against its span and kept, but familiar individuals versus famous faces; contrasted-with is loose.
concept_edges[4]the tagger's words
concept_edgessingle units —distinct-from→ multiunits
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strength of the relation: 1
concept_edges[6]the tagger's words
concept_edgeslandmarks —contrasted-with→ famous faces
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differs in: THE AXIS IS WHETHER FAME MODULATES THE RESPONSE, AND ONE SIDE IS A NULL. 'In contrast to cellular responses to faces, WHICH SHOWED A significant preference for famous faces, as compared with unknown faces, there was no difference in the proportion of cells responding to famous versus unknown landmarks (P = 0.27).' Both categories are represented; only one is sensitive to familiarity, and the evidence for the difference is a significant test on one side and a null on the other. · strength of the relation: 0.95 Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but the span contrasts cell responses to famous landmarks and famous faces; contrasted-with is loose.
concept_edges[8]the tagger's words
content_tagschi-squared test
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content_tags.statistics[0]the tagger's words
content_tagst-test
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also in: t-test
content_tags.statistics[1]the tagger's words
content_tagsmedian
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also in: median
content_tags.statistics[2]the tagger's words
content_tagsstandard deviation
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content_tags.statistics[3]the tagger's words
content_tagsplanned comparisons
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content_tags.statistics[4]the tagger's words
content_tagspost-hoc tests
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content_tags.statistics[5]the tagger's words
content_tagsp-value
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also in: p-value
content_tags.statistics[6]the tagger's words
content_tagsχ 2
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also in: χ 2
content_tags.statistics[7]1.0the tagger's words
content_tagsplanned comparisons
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content_tags.statistics[8]1.0the tagger's words
content_tagspost-hoc tests
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content_tags.statistics[9]1.0the tagger's words
content_tagst test
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also in: t test
content_tags.statistics[10]1.0the tagger's words
content_tagsmedian number of spikes
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content_tags.statistics[11]1.0the tagger's words
content_tags4(region) × 4(category) χ 2 analysis
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content_tags.statistics[12]1.0the tagger's words
content_tagsPhotographs of the experimenters were the most likely to elicit a response (22%), followed by photographs of the patients and their families (17%).
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content_tags.findings[0]the tagger's words
content_tagsFamily members and experimenters were statistically indistinguishable from each other but together beat celebrities, and celebrities in turn beat unknown faces, giving a graded ladder of personal relevance.
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content_tags.findings[1]the tagger's words
content_tagsFamiliarity produced no such effect for places: famous landmarks (14%) and unknown landmarks (11%) elicited statistically indistinguishable proportions of responses.
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content_tags.findings[2]the tagger's words
content_tagsSelective excitatory responses were not spread evenly over the MTL: entorhinal cortex yielded fewer responses than either the hippocampus or the parahippocampal cortex.
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content_tags.findings[3]the tagger's words
content_tagsThe four MTL regions differed significantly from one another in how they distributed responses across the four face categories.
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content_tags.findings[4]the tagger's words
content_tagsThe hippocampus was the one region where celebrities behaved like personally known people, responding more to famous than to unknown faces while family, experimenters and celebrities did not differ from each other.
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content_tags.findings[5]the tagger's words
content_tagsIn entorhinal cortex no unit at all responded to unknown faces.
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content_tags.findings[6]the tagger's words
content_tagsIn the amygdala the ordering reversed at the top end: experimenters elicited responses more often than family members.
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content_tags.findings[7]the tagger's words
content_tagsOnly 3 units responded to images of the patients themselves.
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content_tags.findings[8]the tagger's words
content_tagsOverall, personally relevant photographs are more likely to elicit selective MTL responses than photographs of people the patient has never met.
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content_tags.findings[9]the tagger's words
content_tagsresponse likelihood was ordered by personal relevance: experimenters 22%, family 17%, celebrities 9%, unknown faces 5%
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content_tags.findings[10]1.0the tagger's words
content_tagsfamily and experimenters were indistinguishable, but together beat celebrities, which in turn beat unknown faces
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content_tags.findings[11]1.0the tagger's words
content_tagsthe familiarity effect held for faces but not for landmarks — 14% famous against 11% unknown
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content_tags.findings[12]1.0the tagger's words
content_tagsonly 3 units responded to images of the patients themselves, so self and family were merged
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content_tags.findings[13]1.0the tagger's words
content_tagsthe four MTL regions differed in their category response patterns
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content_tags.findings[14]1.0the tagger's words
content_tagsthe hippocampus was the only region where famous faces beat unknown faces, with family, experimenters and celebrities not differing from each other
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content_tags.findings[15]1.0the tagger's words
content_tagsentorhinal cortex produced no responses at all to unknown faces
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content_tags.findings[16]1.0the tagger's words
content_tagsin parahippocampal cortex family and experimenters together beat famous faces strongly, and famous did not beat unknown
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content_tags.findings[17]1.0the tagger's words
content_tagsin the amygdala experimenters beat family, and neither the celebrity nor the unknown contrast held — the familiarity ordering broke down
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content_tags.findings[18]1.0the tagger's words
content_tagsselective responses were unevenly distributed across MTL, with entorhinal cortex responding less than hippocampus and parahippocampal cortex
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content_tags.findings[19]1.0the tagger's words
content_tagsan amygdala unit responded to one researcher's photograph and to none of 100+ perceptually similar images
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content_tags.findings[20]1.0the tagger's words
content_tagsthe selectivity exclusion removed only 7% of responsive units
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content_tags.findings[21]1.0the tagger's words
content_tagsself-reference effect
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content_tags.definitions[0]the tagger's words
content_tagscriterion of selective responsiveness
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content_tags.definitions[1]the tagger's words
content_tagsresponse to a picture
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content_tags.definitions[2]the tagger's words
content_tagsresponsive unit
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content_tags.definitions[3]the tagger's words
content_tagsmultiple trace theory (MTT)
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content_tags.definitions[4]the tagger's words
content_tagssparse code
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also in: sparse code
content_tags.definitions[5]the tagger's words
content_tagsThe self-reference effect
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content_tags.definitions[6]1.0the tagger's words
content_tagsselective responsiveness
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content_tags.definitions[7]1.0the tagger's words
content_tagsresponse
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also in: response
content_tags.definitions[8]1.0the tagger's words
content_tagsbaseline
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also in: baseline
content_tags.definitions[9]1.0the tagger's words
content_tagsmultiple trace theory
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content_tags.definitions[10]1.0the tagger's words
content_tagsstandard model of consolidation
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content_tags.definitions[11]1.0the tagger's words
content_tagscategories of images
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content_tags.variables[0]the tagger's words
content_tagscategory of stimuli
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content_tags.variables[5]1.0the tagger's words
content_tagsproportions of images eliciting responses
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content_tags.variables[6]1.0the tagger's words
content_tagsMTL region
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also in: MTL region
content_tags.variables[7]1.0the tagger's words
content_tagsmedian number of spikes
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content_tags.variables[8]1.0the tagger's words
content_tagsbaseline
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also in: baseline
content_tags.variables[9]1.0the tagger's words
content_tags2,330 — total units recorded from 16 patients over 34 sessions across four MTL regions
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content_tags.quantities[0]the tagger's words
content_tags153 units — units meeting the selective-responsiveness criterion and entering the category comparisons
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content_tags.quantities[1]the tagger's words
content_tags7% — share of the 165 responsive units discarded by the selectivity criterion (12 units responding to more than 5 pictures)
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content_tags.quantities[2]the tagger's words
content_tags22% — proportion of experimenter photographs that generated a selective response, the highest of any category
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content_tags.quantities[3]the tagger's words
content_tags9% — proportion of famous-face images generating responses, versus 5% for unknown faces
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content_tags.quantities[4]the tagger's words
content_tags14% — proportion of famous landmarks generating responses, statistically indistinguishable from the 11% for unknown landmarks
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content_tags.quantities[5]the tagger's words
content_tagsχ 2 (9) = 32.3, P < 0.0001 — test statistic for the region-by-category interaction showing regions differ in their response patterns
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content_tags.quantities[6]the tagger's words
content_tags28 kHz — digital sampling rate of the microwire signals, bandpass filtered between 1 and 9 kHz
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content_tags.quantities[7]the tagger's words
content_tags2,330 units — total recorded, 874 single and 1,456 multiunits
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content_tags.quantities[8]1.0the tagger's words
content_tags153 units — selective responsive units after the five-set exclusion, from 165 responsive
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content_tags.quantities[9]1.0the tagger's words
content_tags22% / 17% / 9% / 5% — response rates for experimenters, family, celebrities, unknown faces
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content_tags.quantities[10]1.0the tagger's words
content_tags14% vs 11% — famous against unknown landmark response rates, not significantly different
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content_tags.quantities[11]1.0the tagger's words
content_tags3 units — responses to images of the patients themselves
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content_tags.quantities[12]1.0the tagger's words
content_tagssixteen patients, 34 sessions — the sample
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content_tags.quantities[13]1.0the tagger's words
content_tags6–14 depth electrodes — electrodes implanted per patient, sited by clinical criteria
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content_tags.quantities[14]1.0the tagger's words
content_tagsnine 40-μm microwires — microwires per electrode tip, the ninth serving as reference
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content_tags.quantities[15]1.0the tagger's words
content_tags28 kHz, 1 to 9 kHz — sampling rate and bandpass filter
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content_tags.quantities[16]1.0the tagger's words
content_tags5 standard deviations — the responsiveness threshold above baseline
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content_tags.quantities[17]1.0the tagger's words
content_tags6 times for 1 s — repetitions and duration per image
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content_tags.quantities[18]1.0the tagger's words
content_tags1.5° — visual angle subtended by each image
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content_tags.quantities[19]1.0the tagger's words
content_tags<1% spikes within less than 3 ms ISI — the refractory-period criterion for classifying a cluster as a single unit
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content_tags.quantities[20]1.0the tagger's words
content_tags1 and 2 weeks — how long patients remained implanted on the ward
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content_tags.quantities[21]1.0the tagger's words
content_tags100+ — perceptually similar stimuli the example amygdala unit did not respond to
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content_tags.quantities[22]1.0the tagger's words

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