Evidence map›Paper›PMID 32399946›Full record

ReviewNeuropsychology review2020

Split-Brain: What We Know Now and Why This is Important for Understanding Consciousness.

Edward H F de Haan, Paul M Corballis, Steven A Hillyard, Carlo A Marzi, Anil Seth, Victor A F Lamme, Lukas Volz, Mara Fabri, Elizabeth Schechter, Tim Bayne and 2 more

Abstract readReview
In one paragraph

Review in Neuropsychology review, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
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

29 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Dimensions of corvid consciousness.Animal cognition · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
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

12 authors.

Edward H F de HaanDepartment of Psychology, University of Amsterdam, Amsterdam, the Netherlands. e.h.f.dehaan@uva.nl.
Paul M CorballisSchool of Psychology, University of Auckland, Auckland, New Zealand.
Steven A HillyardSchool of Health Sciences, University of California Dan Diego, La Jolla, CA, USA.
Carlo A MarziSchool of Medicine and Surgery, University of Verona, Verona, Italy.
Anil SethSackler Centre for Consciousness Science, Sussex University, Brighton, UK.
Victor A F LammeDepartment of Psychology, University of Amsterdam, Amsterdam, the Netherlands.
Lukas VolzKlinik für Neurologie, Universitätsklinikum Köln, Kerpener Str, 62, Köln, Germany.
Mara FabriDipartimento di Medicina Sperimentale e Clinica, Via Tronto 10/A, 60020, Ancona, Italy.
Elizabeth SchechterDepartment of Philosophy, Washington University, St. Louis, MO, USA.
Tim BayneDepartment of Philosophy, Monash University, Melbourne, Australia.
Michael CorballisSchool of Psychology, University of Auckland, Auckland, New Zealand.
Yair PintoDepartment of Psychology, University of Amsterdam, Amsterdam, the Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recently, the discussion regarding the consequences of cutting the corpus callosum ("split-brain") has regained momentum (Corballis, Corballis, Berlucchi, & Marzi, Brain, 141(6), e46, 2018; Pinto et al., Brain, 140(5), 1231-1237, 2017a; Pinto, Lamme, & de Haan, Brain, 140(11), e68, 2017; Volz & Gazzaniga, Brain, 140(7), 2051-2060, 2017; Volz, Hillyard, Miller, & Gazzaniga, Brain, 141(3), e15, 2018). This collective review paper aims to summarize the empirical common ground, to delineate the different interpretations, and to identify the remaining questions. In short, callosotomy leads to a broad breakdown of functional integration ranging from perception to attention. However, the breakdown is not absolute as several processes, such as action control, seem to remain unified. Disagreement exists about the responsible mechanisms for this remaining unity. The main issue concerns the first-person perspective of a split-brain patient. Does a split-brain harbor a split consciousness or is consciousness unified? The current consensus is that the body of evidence is insufficient to answer this question, and different suggestions are made with respect to how future studies might address this paucity. In addition, it is suggested that the answers might not be a simple yes or no but that intermediate conceptualizations need to be considered.

Indexed as

Split-Brain ProcedureAttentionConsciousnessCorpus CallosumHumansConsciousness agentsEpilepsyLateralizationSplit-brainVisual perception

Identifiers

PMID32399946
PMCPMC7305066

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.