Evidence map›Paper›PMID 21858818›Full record

ArticleThe Journal of comparative neurology2012

Trigeminal and telencephalic projections to jaw and other upper vocal tract premotor neurons in songbirds: sensorimotor circuitry for beak movements during singing.

J M Wild, N E O Krützfeldt

Open access · greenAbstract readComparative Study
In one paragraph

Article in The Journal of comparative neurology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 26% 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

13 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. The neurobiology of innate, volitional and learned vocalizations in mammals and birds.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. The acoustic effect of vocal tract adjustments in zebra finches.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2013
    Article
  12. Afferents from vocal motor and respiratory effectors are recruited during vocal production in juvenile songbirds.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012
    Article
  13. 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

2 authors at 1 institution in 1 country.

J M WildDepartment of Anatomy, Faculty of Medical and Health Science, University of Auckland, Auckland 1142, New Zealand. jm.wild@auckland.ac.nz
N E O Krützfeldt
University of Auckland · NZ

Funding

Sensorimotor control of the oropharynx and esophagusR01NS029467 · NINDS · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI SUTHERS, RODERICK ATKINS · 1991 to 2014
$3.3M
NINDS NIH HHS R01 NS029467
6 · The paper itself

Abstract

During singing in songbirds, the extent of beak opening, like the extent of mouth opening in human singers, is partially correlated with the fundamental frequency of the sounds emitted. Since song in songbirds is under the control of "the song system" (a collection of interconnected forebrain nuclei dedicated to the learning and production of song), it might be expected that beak movements during singing would also be controlled by this system. However, direct neural connections between the telencephalic output of the song system and beak muscle motor neurons in the brainstem are conspicuous by their absence, leaving unresolved the question of how beak movements are affected during singing. By using standard tract tracing methods, we sought to answer this question by defining beak premotor neurons and examining their afferent projections. In the caudal medulla, jaw premotor cell bodies were located adjacent to the terminal field of the output of the song system, into which many premotor neurons extended their dendrites. The premotor neurons also received a novel input from the trigeminal ganglion and an overlapping input from a lateral arcopallial component of a trigeminal sensorimotor circuit that traverses the forebrain. The ganglionic input in songbirds, which is not present in doves and pigeons that vocalize with a closed beak, may modulate the activity of beak premotor neurons in concert with the output of the song system. These inputs to jaw premotor neurons could, together, affect beak movements as a means of modulating filter properties of the upper vocal tract during singing.

Indexed as

AnimalsBeakJawMovementNerve NetPsychomotor PerformanceSongbirdsStem CellsTelencephalonTrigeminal NucleiVocal CordsVocalization, Animal

Identifiers

PMID21858818
PMCPMC3935800
OpenAlexW2070637854

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.