Evidence map›Paper›PMID 27466132›Full record

ArticleJournal of neurophysiology2016

Functional versus effector-specific organization of the human posterior parietal cortex: revisited.

Tobias Heed, Frank T M Leone, Ivan Toni, W Pieter Medendorp

Abstract read
In one paragraph

Article in Journal of neurophysiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Coding of tool use independent of body part.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Action-type mapping principles extend beyond evolutionarily conserved actions, even in people born without hands.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Evidence for an effector-independent action system from people born without hands.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  14. Article
  15. Mechanistic determinants of effector-independent motor memory encoding.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  16. Article
  17. Review
  18. Action Observation and Effector Independency.Frontiers in human neuroscience · 2019
    Article
  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

4 authors.

Tobias HeedBiological Psychology and Neuropsychology, University of Hamburg, Hamburg, Germany; and Biological Psychology and Cognitive Neuroscience, Bielefeld University, Bielefeld, Germany tobias.heed@uni-bielefeld.de.ORCID 0000-0001-5632-6091
Frank T M LeoneDonders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, The Netherlands.
Ivan ToniDonders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, The Netherlands.ORCID 0000-0003-0936-3601
W Pieter MedendorpDonders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It has been proposed that the posterior parietal cortex (PPC) is characterized by an effector-specific organization. However, strikingly similar functional MRI (fMRI) activation patterns have been found in the PPC for hand and foot movements. Because the fMRI signal is related to average neuronal activity, similar activation levels may result either from effector-unspecific neurons or from intermingled subsets of effector-specific neurons within a voxel. We distinguished between these possibilities using fMRI repetition suppression (RS). Participants made delayed, goal-directed eye, hand, and foot movements to visual targets. In each trial, the instructed effector was identical or different to that of the previous trial. RS effects indicated an attenuation of the fMRI signal in repeat trials. The caudal PPC was active during the delay but did not show RS, suggesting that its planning activity was effector independent. Hand and foot-specific RS effects were evident in the anterior superior parietal lobule (SPL), extending to the premotor cortex, with limb overlap in the anterior SPL. Connectivity analysis suggested information flow between the caudal PPC to limb-specific anterior SPL regions and between the limb-unspecific anterior SPL toward limb-specific motor regions. These results underline that both function and effector specificity should be integrated into a concept of PPC action representation not only on a regional but also on a fine-grained, subvoxel level.

Indexed as

AdultBrain MappingEye Movement MeasurementsEye MovementsFemaleFootGoalsHandHumansMagnetic Resonance ImagingMaleMotor ActivityNeural PathwaysNeuropsychological TestsParietal LobeReaction Timecortical organizationfootparietal cortexpointingsensorimotor processing

Identifiers

PMID27466132
PMCPMC5144691

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Registered trials

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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.