Evidence map›Paper›PMID 24344364›Full record

ArticleBehavioural brain research2014

Speech training alters tone frequency tuning in rat primary auditory cortex.

Crystal T Engineer, Claudia A Perez, Ryan S Carraway, Kevin Q Chang, Jarod L Roland, Michael P Kilgard

Abstract read
In one paragraph

Article in Behavioural brain research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Music enrichment programs improve the neural encoding of speech in at-risk children.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Trial
  2. Immersive audiomotor game play enhances neural and perceptual salience of weak signals in noise.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Trial
  3. Auditory Training Alters the Cortical Representation of Complex Sounds.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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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

6 authors.

Crystal T Engineer
Claudia A Perez
Ryan S Carraway
Kevin Q Chang
Jarod L Roland
Michael P Kilgard

Funding

Animal Model of Speech Sound Processing in AutismR01DC010433 · NIDCD · UNIVERSITY OF TEXAS DALLAS · PI KILGARD, MICHAEL P · 2010 to 2014
$1.4M
NIDCD NIH HHS R01 DC010433
6 · The paper itself

Abstract

Previous studies in both humans and animals have documented improved performance following discrimination training. This enhanced performance is often associated with cortical response changes. In this study, we tested the hypothesis that long-term speech training on multiple tasks can improve primary auditory cortex (A1) responses compared to rats trained on a single speech discrimination task or experimentally naïve rats. Specifically, we compared the percent of A1 responding to trained sounds, the responses to both trained and untrained sounds, receptive field properties of A1 neurons, and the neural discrimination of pairs of speech sounds in speech trained and naïve rats. Speech training led to accurate discrimination of consonant and vowel sounds, but did not enhance A1 response strength or the neural discrimination of these sounds. Speech training altered tone responses in rats trained on six speech discrimination tasks but not in rats trained on a single speech discrimination task. Extensive speech training resulted in broader frequency tuning, shorter onset latencies, a decreased driven response to tones, and caused a shift in the frequency map to favor tones in the range where speech sounds are the loudest. Both the number of trained tasks and the number of days of training strongly predict the percent of A1 responding to a low frequency tone. Rats trained on a single speech discrimination task performed less accurately than rats trained on multiple tasks and did not exhibit A1 response changes. Our results indicate that extensive speech training can reorganize the A1 frequency map, which may have downstream consequences on speech sound processing.

Indexed as

AnimalsAuditory CortexDiscrimination LearningEvoked Potentials, AuditoryMalePhoneticsRatsSpeechSpeech Perception

Identifiers

PMID24344364
PMCPMC3886187

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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.