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Cited by 122Tactile and Sensory InteractionsNeural dynamics and brain functionMotor Control and Adaptation

Closed-loop Neuronal Computations: Focus on Vibrissa Somatosensation in Rat

Ahissar, E.·2003·Cerebral Cortex
DOI 10.1093/cercor/13.1.53
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Abstract

Two classes of neuronal architectures dominate in the ongoing debate on the nature of computing by nervous systems. The first is a predominantly feedforward architecture, in which local interactions among neurons within each processing stage play a less influential role compared with the drive of the input to that stage. The second class is a recurrent network architecture, in which the local interactions among neighboring neurons dominate the dynamics of neuronal activity so that the input acts only to bias or seed the state of the network. The study of sensorimotor networks, however, serves to highlight a third class of architectures, which is neither feedforward nor locally recurrent and where computations depend on large-scale feedback loops. Findings that have emerged from our laboratories and those of our colleagues suggest that the vibrissa sensorimotor system is involved in such closed-loop computations. In particular, single unit responses from vibrissa sensory and motor areas show generic signatures of phase-sensitive detection and control at the level of thalamocortical and corticocortical loops. These loops are likely to be components within a greater closed-loop vibrissa sensorimotor system, which optimizes sensory processing.

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  • Motor pathways are known to target the barrel cortex from the motor cortex, the superior colliculus and other brainstem areas.

    “Motor pathways are known to target the barrel cortex from the motor cortex, the superior colliculus and other brainstem areas45,46.”

    From Corollary discharge across the animal kingdom (2008) · cites this paper as [45]

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Authors
Ahissar, E.
Affiliations
University of California, Santa Barbara (US)
Corresponding author
Ahissar, E.
ORCID
Ahissar, E.
Venue
Cerebral Cortex
Publisher
Oxford University Press (OUP)
Published
2003-01-01
Volume
13
Issue
1
Pages
53-62
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
DOI
10.1093/cercor/13.1.53
OpenAlex
W2155997772
Cited by
122
References
36
Citations by year
2026: 2 · 2025: 3 · 2023: 4 · 2022: 5 · 2021: 5 · 2020: 5 · 2019: 2 · 2018: 4 · 2017: 4 · 2016: 6 · 2015: 9 · 2014: 3 · 2013: 2 · 2012: 6
FWCI
0.54
Type
journal article
Language
en
Open access
closed
Locations
  • Cerebral Cortex (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation (9907949)
  • Weizmann Institute of Science
  • United States-Israel Binational Science Foundation
  • National Institute of Mental Health (R01MH059867, MH-59867)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
Keywords
somatosensory perception, recurrent neural networks, feedback loops, phase-sensitive detection, thalamocortical loop, sensorimotor control, single-unit responses, rats
MeSH terms
Afferent Pathways, Animals, Behavior, Animal, Efferent Pathways, Feedback, Interneurons, Models, Neurological, Motor Cortex, Movement, Nerve Net, Neurons, Somatosensory Cortex, Thalamus, Vibrissae, Rats

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