Evidence map›Paper›PMID 32220317›Full record

ArticleCurrent biology : CB2020

Dynamics and Hierarchical Encoding of Non-compact Acoustic Categories in Auditory and Frontal Cortex.

Pingbo Yin, Dana L Strait, Susanne Radtke-Schuller, Jonathan B Fritz, Shihab A Shamma

Abstract read
In one paragraph

Article in Current biology : CB, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
–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

35 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  4. Similar Response Dynamics Represent Opposite Behaviors and Rewards in the Frontal Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
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  14. Individual-specific strategies inform category learning.bioRxiv : the preprint server for biology · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Pingbo YinInstitute for Systems Research, Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA. Electronic address: pyin@umd.edu.
Dana L StraitInstitute for Systems Research, Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA.
Susanne Radtke-SchullerInstitute for Systems Research, Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA.
Jonathan B FritzInstitute for Systems Research, Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA; Center for Neural Science, New York University, New York, NY 10003, USA.
Shihab A ShammaInstitute for Systems Research, Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA; Department of Cognitive Studies, Laboratoire des Systèmes Perceptifs, École Normale Supérieure, 75005 PSL Paris, France.

Funding

Spectro-Temporal Plasticity in Primary Auditory CortexR01DC005779 · NIDCD · UNIV OF MARYLAND, COLLEGE PARK · PI Shihab A Shamma · 2004 to 2026
$6.7M
NIDCD NIH HHS R01 DC005779
6 · The paper itself

Abstract

Categorical perception is a fundamental cognitive function enabling animals to flexibly assign sounds into behaviorally relevant categories. This study investigates the nature of acoustic category representations, their emergence in an ascending series of ferret auditory and frontal cortical fields, and the dynamics of this representation during passive listening to task-relevant stimuli and during active retrieval from memory while engaging in learned categorization tasks. Ferrets were trained on two auditory Go-NoGo categorization tasks to discriminate two non-compact sound categories (composed of tones or amplitude-modulated noise). Neuronal responses became progressively more categorical in higher cortical fields, especially during task performance. The dynamics of the categorical responses exhibited a cascading top-down modulation pattern that began earliest in the frontal cortex and subsequently flowed downstream to the secondary auditory cortex, followed by the primary auditory cortex. In a subpopulation of neurons, categorical responses persisted even during the passive listening condition, demonstrating memory for task categories and their enhanced categorical boundaries.

Indexed as

SoundAcoustic StimulationAnimalsAuditory CortexAuditory PerceptionBehavior, AnimalFemaleFerretsFrontal LobeLearningMonitoring, Physiologicauditory categorizationauditory cortexferretfrontal cortexlong-term memorytop-down modulation

Identifiers

PMID32220317
PMCPMC7202973

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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.