Separate visual pathways for perception and action

Goodale , Milner · Trends in Neurosciences · 1992 · neuroscience · 10.1016/0166-2236(92)90344-8 · record Goodale-Milner1992-separate-visual-pathways-for-perception-and
tag layer · index · concepts · authors · עברית
Where this record's text came from. faceted 2026-08 by reading the locally held text (pdftext); every evidence string verified as an exact substring of that text before merging. The article is a theoretical review that synthesises others' lesion/electrophysiology work together with the authors' own patient DF studies; 'review' is the closest available method term and no new experiment is reported here. The claim type quote and the one claim_relation quote are garbled by the PDF text extraction (scrambled word order, an embedded page/copyright line); they are reproduced character for character as they appear in the article text, as required. Claim type is 'mechanism' because the contribution is a proposal about which pathway performs which transformation, not merely that the streams exist. The paper positions itself against Schneider (1969) as well, but only as background about the field rather than as an explicit self-relation, so that is not recorded. 2026-08-14 and 2026-08-25 schema-0.3 passes: every quote verified as an exact substring of the staged text and anchored at merge time; concept terms verified present; every edge endpoint an existing node.
This record’s own method is review, and the tags below follow from that. A review’s findings, quantities and statistics are things stated IN this paper, and some of them report results obtained elsewhere. No tag on this page names a different author. Measured across every review in this corpus, 81% of a review’s tags carry no citation at all — most of them are the review speaking. The corpus does not adjudicate the rest: read an unmarked tag as a claim this paper makes, not necessarily one it made first.
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.

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 5 concept tags on this paper, all 5 are grounded in a quoted sentence.
ventral stream dorsal stream localization functional dichotomy tectal mechanisms Different output requirements (perceptual identification vs online sensorimotor transformation) demand different visual computations, and this drives the anatomical segregation of the two streams. Dorsal-stream processing proceeds without reaching consciousness, which keeps moment-to-moment viewer-centred information from disrupting the perceptual constancies computed in the ventral stream. Separate processing modules evolved because vision is put to functionally different uses. width of the target mean standard error review

Legend

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
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
phenomenonphenomenonthe effect or regularity under study
sensesensesa distinct use of a term, quoted where the paper fixes it

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/10.1016/0166-2236(92)90344-8. The reading view exists for the papers whose licence permits it.

Every tag on this page

claim_relations 1 · claim_type 1 · concept_edges 1 · concepts 5 · content_tags 13 · controls 1 · limitations 5 · mechanisms 3 · method 1 · phenomenon 1 · senses 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 1 relation here carry that mark. The rest are the tagger’s reading of the sentence quoted beside them.

facettagfieldconf.whose words
claim_typemechanism
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
claim_typethe paper's words
phenomenoncortical visual pathways for perception and action
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
phenomenonthe paper's words
methodreview
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
also in: review
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
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
mechanisms[1]the tagger's words
mechanismsmechanisms
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
mechanisms[2]the tagger's words
limitationsThe proposed division of labour between the two streams is not claimed to be absolute.
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
limitations[0]the tagger's words
limitationsCorrelating human neuropsychological findings with monkey neurophysiology requires caution.
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
limitations[1]the tagger's words
limitationsThe evidence base lacks detailed analyses of how task-specific most visuospatial disorders are.
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
limitations[2]the tagger's words
limitationsThe paper replaces the principle by which the same two pathways are divided.
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
what this limits: any comparison between findings filed under the two accounts: the authors propose that the what-versus-how distinction, rather than the distinction between object vision and spatial vision, captures the functional dichotomy between the ventral and dorsal projections
limitations[3]1.0the tagger's words
limitationsAn earlier term is criticised by name for grouping behaviours it could not separate.
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
what this limits: any use of the earlier localization account: the authors state that the notion of localization failed to distinguish between the many different patterns of behaviour that vary with the spatial location of visual stimuli, only some of which rely on tectal mechanisms
limitations[4]1.0the tagger's words
controlstwo control subjects put through the same manual matching task as the patient DF, over a series of randomly ordered trials
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
eliminates: the dissociation being a property of the task rather than of DF's lesion - the controls do the identical task, and the random order removes anticipation for everyone · outcome (stated by the tagger, no quotation): held
controls[0]0.85the tagger's words
conceptsventral stream
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
concepts[0]the paper's words
conceptsdorsal stream
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
also in: dorsal stream
concepts[1]the paper's words
conceptslocalization
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
also in: localization
concepts[2]the paper's words
conceptsfunctional dichotomy
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
concepts[3]the paper's words
conceptstectal mechanisms
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
concepts[4]the paper's words
sensesthe dorsal/ventral division - THE SAME ANATOMY, A NEW DIVIDING PRINCIPLE: the authors propose that what-versus-how, rather than the object-vision versus spatial-vision distinction, captures the functional dichotomy between the two projections; the fibre bundles are unchanged and the question used to sort them is not, so findings filed under the two accounts sort the same tissue differently
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
senses[0]1.0the tagger's words
senseslocalization - A TERM THAT FAILED TO DISTINGUISH: the notion is said not to separate the many different patterns of behaviour that vary with the spatial location of a stimulus, only some of which rely on tectal mechanisms, so one word covered several mechanisms and the paper says so
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
senses[1]1.0the tagger's words
sensesthe ventral stream - DEFINED BY WHAT IT IS FOR, NOT BY WHERE IT GOES: proposed to play the major role in the perceptual identification of objects, in the sentence that also names the dorsal stream as the other half of the proposal; the stream is identified here by a function rather than by its anatomical destination
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
senses[2]1.0the tagger's words
claim_relationsextends → Ungerleider and Mishkin's (1982) two-visual-systems model ('what' versus 'where')
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
about this quote: THE STAGED TEXT WAS SPLICED AND HAS BEEN REPAIRED. A page foot - 20 © 1992, Elsevier Science PublishersLtd, (UK) 0166- 2236192150500 TINS, VOI. 15, NO. I, 1992 - sat between 'it is' and 'proposed', inside the sentence, and the quote was cut faithfully from that corrupt copy. So every check we own passed: the offsets were right, the recorded hash of the staged text matched, and the quote was findable. The staged file was repaired rather than only this string, because leaving the corrupt paragraph staged reproduces the fault in the next tag drawn from it; the pre-repair copy is in an internal file and the original quote in evidence as extracted.
claim_relations[0]0.85the tagger's words
concept_edgesventral stream —contrasted-with→ dorsal stream
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
strength of the relation: 1
concept_edges[0]the tagger's words
content_tagsmean
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
also in: mean
content_tags.statistics[0]the tagger's words
content_tagsstandard error
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.statistics[1]the tagger's words
content_tagsWhen reaching to pick up a block, DF's grip aperture changed systematically with the object's width, as in normal subjects.
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.findings[0]the tagger's words
content_tagsThe same patient's manual estimates of object width bore no relation to actual object size and were highly variable trial to trial.
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.findings[1]the tagger's words
content_tagsThe dorsal/ventral division cannot be reduced to the magnocellular/parvocellular retinal division, because both streams receive input from both pathways.
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.findings[2]the tagger's words
content_tagsSpatial attention is physiologically non-unitary and may be as much associated with the ventral system as with the dorsal.
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.findings[3]the tagger's words
content_tagsThe authors believe functional modularity in cortical visual systems extends from input right through to output.
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.findings[4]the tagger's words
content_tagsDespite being unable to recognize objects' size, shape and orientation, DF guided her hand and finger movements to those objects accurately.
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.findings[5]the tagger's words
content_tagsventral stream
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.definitions[3]the tagger's words
content_tagsdorsal stream
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
also in: dorsal stream
content_tags.definitions[4]the tagger's words
content_tagswidth of the target
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.variables[0]the tagger's words
content_tagsapproximately 45 cm — viewing distance at which the plaques were presented in the matching and grasping tasks
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.quantities[0]the tagger's words
content_tags5 x 5 cm to 2.5 x 10 cm — range of plaque dimensions used as the stimulus set (all of equal top-surface area)
Quotation withheld — this record is not cleared for redistribution. The sentence is in the paper at the link above.
content_tags.quantities[1]the tagger's words

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