Repetition Suppression in Monkey Inferotemporal Cortex: Relation to Behavioral Priming

Repetition Suppression in Monkey Inferotemporal Cortex: Relation to Behavioral Priming David B. T. McMahon Carl R. Olson

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Repetition Suppression in Monkey Inferotemporal Cortex: Relation to Behavioral Priming 2007 Journal of Neurophysiology 10.1152/jn.01042.2006 mcmahon-olson2007-suppression mcmahon-olson2007-suppression.txt, the project's staged copy 15a37f0fab8c862e31cec0cbad3708cfabdc0137 personal-copy neuroscience

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0 spans located by searching the stored text for the quote's exact words, allowing any whitespace between them null-result Quotation withheld because this record is not cleared for redistribution. repetition suppression in inferotemporal cortex Quotation withheld because this record is not cleared for redistribution. electrophysiology electrophysiology Quotation withheld because this record is not cleared for redistribution. The correlation analysis had limited power, so a very weak cross-trial correlation between suppression and priming cannot be excluded. Quotation withheld because this record is not cleared for redistribution. Independent noise in firing rates and reaction times could in principle have masked an underlying weak correlation. Quotation withheld because this record is not cleared for redistribution. The design confounds elapsed time with the number of intervening trials, so the effect of time interval per se was not tested. Quotation withheld because this record is not cleared for redistribution. The standard Gaussian tuning-curve method for assessing selectivity change could not be applied to IT neurons, forcing an alternative rank-based analysis. Quotation withheld because this record is not cleared for redistribution. the inferential logic of behavioural priming - infer the properties of a representation from how much repeating a stimulus changes the response to it - carried into fMRI as MR adaptation Quotation withheld because this record is not cleared for redistribution. the first twelve trials of every session were discarded eliminates: that an early, transient, NON-STIMULUS-SPECIFIC drop in both reaction time and firing rate is counted as a priming effect · outcome (stated by the tagger, no quotation): held Quotation withheld because this record is not cleared for redistribution. responses to stimuli classified as subthreshold by a signal-detection thresholding filter were excluded eliminates: that suppression is measured on responses too weak to be distinguished from noise · outcome (stated by the tagger, no quotation): held Quotation withheld because this record is not cleared for redistribution. repetition suppression repetition suppression Quotation withheld because this record is not cleared for redistribution. repetition priming repetition priming Quotation withheld because this record is not cleared for redistribution. inferotemporal cortex inferotemporal cortex Quotation withheld because this record is not cleared for redistribution. stimulus selectivity stimulus selectivity Quotation withheld because this record is not cleared for redistribution. THE CONCLUSION IS A NEGATIVE AND IT FITS IN ONE LINE: `Quotation withheld` The neural correlate everyone reaches for is a passenger. Carlesimo2004, merged into this corpus forty minutes ago, reads its rCBF decreases as `the reduced neural activity needed to reprocess recently seen words` - suppression explaining priming, taken as read; and Desimone1996 calls suppression `an intrinsic property of visual cortical areas`. Three records, three positions on whether a reduced response is the mechanism or the companion, and none of them assembled on purpose Quotation withheld because this record is not cleared for redistribution. AND THE ARGUMENT IS TURNED FROM A STATISTICAL QUESTION INTO A MECHANICAL ONE, WHICH IS THE ONLY WAY TO RULE OUT A CO-OCCURRING SIGNAL: `Quotation withheld` Correlation is granted, not contested. The test is whether suppression has the PROPERTIES a cause would need - because a uniform reduction across all neurons degrades the representation, while priming requires it sharpened. A correlate can only be dismissed by asking what it would have to be like Quotation withheld because this record is not cleared for redistribution. THE DEFINITION IS PURELY PHYSIOLOGICAL AND THAT IS WHY THE PAPER IS POSSIBLE: `Quotation withheld` No meaning, no memory, no behaviour in it. A construct defined without reference to the thing it is supposed to explain can be tested against that thing; one defined as `the neural basis of priming` could not be. Compare Carlesimo2004's repetition priming, defined by what the test INSTRUCTIONS do not mention - also an operational definition, and also load-bearing Quotation withheld because this record is not cleared for redistribution. replicates → Li et al. 1993; Ringo 1996 (late onset of repetition suppression in IT) Quotation withheld because this record is not cleared for redistribution. replicates → Maccotta and Buckner 2004; Sayres and Grill-Spector 2006; Wig et al. 2005 (no priming-BOLD correlation in ventral stream) Quotation withheld because this record is not cleared for redistribution. contradicts → the sharpening model of repetition suppression (Desimone 1996; Wiggs and Martin 1998) Quotation withheld because this record is not cleared for redistribution. builds-on → Maljkovic and Nakayama (1994) memory kernel analysis Quotation withheld because this record is not cleared for redistribution. repetition suppression —distinct-from→ repetition priming repetition suppression repetition priming strength of the relation: 0.95 · note: 'distinct-from' IS THE CLOSEST THE VOCABULARY GETS AND IT LOSES HALF THE SENTENCE. The paper says two things at once: they ACCOMPANY each other, and one is NOT the cause of the other. The enforced types offer causes / operationalised-as / distinct-from / contrasted-with / part-of / is-a / same-as / renamed-across-fields, and none of them expresses 'co-occurs with but does not cause'. 'distinct-from' carries the negative half - they are not one thing, and the neural measure is not the behavioural mechanism - and drops the positive half, which is that the correlation is real and granted. Weight 0.95 because the sentence is the paper's stated conclusion and both endpoints are named. The missing type belongs on Shir's schema list: a relation for a correlate that has been tested and ruled out as a cause is exactly what a corpus about definitions should be able to record, and it is the second-commonest finding in this literature after the effect itself. Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but the span says suppression ACCOMPANIES priming but is unlikely to be its cause; distinct-from is loose. Quotation withheld because this record is not cleared for redistribution. correlation correlation Quotation withheld because this record is not cleared for redistribution. false-discovery-rate false-discovery-rate Quotation withheld because this record is not cleared for redistribution. hypothesis-testing hypothesis-testing 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. Quotation withheld because this record is not cleared for redistribution. mean mean Quotation withheld because this record is not cleared for redistribution. p-value p-value Quotation withheld because this record is not cleared for redistribution. regression regression Quotation withheld because this record is not cleared for redistribution. t-test t-test Quotation withheld because this record is not cleared for redistribution.

The full text of this article is not redistributable, so it is not included here. The evidence sentences are withheld with it; the tag layer and its grounding status remain. The article itself is at https://doi.org/10.1152/jn.01042.2006.