Evidence map›Paper›PMID 30987739›Full record

ArticleCortex; a journal devoted to the study of the nervous system and behavior2019

Real-world size coding of solid objects, but not 2-D or 3-D images, in visual agnosia patients with bilateral ventral lesions.

Desiree E Holler, Marlene Behrmann, Jacqueline C Snow

Open access · bronzeAbstract readCase Reports
In one paragraph

Article in Cortex; a journal devoted to the study of the nervous system and behavior, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.1field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Brief Encounters with Real Objects Modulate the Medial Parietal But Not Occipitotemporal Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. The Dorsal Visual Pathway Represents Object-Centered Spatial Relations for Object Recognition.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  14. Implementing New Technologies to Improve Visual-Spatial Functions in Patients with Impaired Consciousness.International journal of environmental research and public health · 2022
    Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. What Does Dorsal Cortex Contribute to Perception?Open mind : discoveries in cognitive science · 2020
    Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Desiree E HollerDepartment of Psychology, University of Nevada, Reno, USA.
Marlene BehrmannDepartment of Psychology, Carnegie Mellon University, Pittsburgh, USA.
Jacqueline C SnowDepartment of Psychology, University of Nevada, Reno, USA. Electronic address: Jacqueline.c.snow@gmail.com.
University of Nevada, Reno · USCarnegie Mellon University · US

Funding

Bringing the Real-World into Cognitive Neuroscience: From Images to Real ObjectsR01EY026701 · NEI · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI Jacqueline C Walsh-Snow · 2016 to 2026
$3.3M
NEI NIH HHS R01 EY026701
6 · The paper itself

Abstract

Patients with visual agnosia show severe deficits in recognizing two-dimensional (2-D) images of objects, despite the fact that early visual processes such as figure-ground segmentation, and stereopsis, are largely intact. Strikingly, however, these patients can nevertheless show a preservation in their ability to recognize real-world objects -a phenomenon known as the 'real-object advantage' (ROA) in agnosia. To uncover the mechanisms that support the ROA, patients were asked to identify objects whose size was congruent or incongruent with typical real-world size, presented in different display formats (real objects, 2-D and 3-D images). While recognition of images was extremely poor, real object recognition was surprisingly preserved, but only when physical size matched real-world size. Analogous display format and size manipulations did not influence the recognition of common geometric shapes that lacked real-world size associations. These neuropsychological data provide evidence for a surprising preservation of size-coding of real-world-sized tangible objects in patients for whom ventral contributions to image processing are severely disrupted. We propose that object size information is largely mediated by dorsal visual cortex and that this information, together with detailed representation of object shape which is also subserved by dorsal cortex, serve as the basis of the ROA.

Indexed as

AgnosiaCerebral CortexFemaleHumansImage Processing, Computer-AssistedImaging, Three-DimensionalMaleMiddle AgedPattern Recognition, VisualVisual PerceptionObject recognitionReal-world objectsReal-world sizeTwo-dimensional imagesVisual form agnosia

Identifiers

PMID30987739
PMCPMC6733679
OpenAlexW2920812712

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.