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See JZ, Homma NY, Atencio CA, Sohal VS, Schreiner CE. Information diversity in individual auditory cortical neurons is associated with functionally distinct coordinated neuronal ensembles. Sci Rep 2021; 11:4064. [PMID: 33603027 PMCID: PMC7893178 DOI: 10.1038/s41598-021-83565-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 01/18/2021] [Indexed: 01/31/2023] Open
Abstract
Neuronal activity in auditory cortex is often highly synchronous between neighboring neurons. Such coordinated activity is thought to be crucial for information processing. We determined the functional properties of coordinated neuronal ensembles (cNEs) within primary auditory cortical (AI) columns relative to the contributing neurons. Nearly half of AI cNEs showed robust spectro-temporal receptive fields whereas the remaining cNEs showed little or no acoustic feature selectivity. cNEs can therefore capture either specific, time-locked information of spectro-temporal stimulus features or reflect stimulus-unspecific, less-time specific processing aspects. By contrast, we show that individual neurons can represent both of those aspects through membership in multiple cNEs with either high or absent feature selectivity. These associations produce functionally heterogeneous spikes identifiable by instantaneous association with different cNEs. This demonstrates that single neuron spike trains can sequentially convey multiple aspects that contribute to cortical processing, including stimulus-specific and unspecific information.
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Affiliation(s)
- Jermyn Z. See
- grid.266102.10000 0001 2297 6811Weill Institute for Neuroscience, Kavli Institute for Fundamental Neuroscience, and Sloan-Swartz Center for Theoretical Neurobiology, University of California, San Francisco, 675 Nelson Rising Lane, San Francisco, CA 94158-0444 USA ,Department of Otolaryngology-Head and Neck Surgery, Coleman Memorial Laboratory, University of Caliornia, San Francisco, USA
| | - Natsumi Y. Homma
- grid.266102.10000 0001 2297 6811Weill Institute for Neuroscience, Kavli Institute for Fundamental Neuroscience, and Sloan-Swartz Center for Theoretical Neurobiology, University of California, San Francisco, 675 Nelson Rising Lane, San Francisco, CA 94158-0444 USA ,Department of Otolaryngology-Head and Neck Surgery, Coleman Memorial Laboratory, University of Caliornia, San Francisco, USA
| | - Craig A. Atencio
- grid.266102.10000 0001 2297 6811Weill Institute for Neuroscience, Kavli Institute for Fundamental Neuroscience, and Sloan-Swartz Center for Theoretical Neurobiology, University of California, San Francisco, 675 Nelson Rising Lane, San Francisco, CA 94158-0444 USA ,Department of Otolaryngology-Head and Neck Surgery, Coleman Memorial Laboratory, University of Caliornia, San Francisco, USA
| | - Vikaas S. Sohal
- grid.266102.10000 0001 2297 6811Weill Institute for Neuroscience, Kavli Institute for Fundamental Neuroscience, and Sloan-Swartz Center for Theoretical Neurobiology, University of California, San Francisco, 675 Nelson Rising Lane, San Francisco, CA 94158-0444 USA ,grid.266102.10000 0001 2297 6811Department of Psychiatry, University of California, San Francisco, USA
| | - Christoph E. Schreiner
- grid.266102.10000 0001 2297 6811Weill Institute for Neuroscience, Kavli Institute for Fundamental Neuroscience, and Sloan-Swartz Center for Theoretical Neurobiology, University of California, San Francisco, 675 Nelson Rising Lane, San Francisco, CA 94158-0444 USA ,Department of Otolaryngology-Head and Neck Surgery, Coleman Memorial Laboratory, University of Caliornia, San Francisco, USA
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See JZ, Atencio CA, Sohal VS, Schreiner CE. Coordinated neuronal ensembles in primary auditory cortical columns. eLife 2018; 7:e35587. [PMID: 29869986 PMCID: PMC6017807 DOI: 10.7554/elife.35587] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 06/03/2018] [Indexed: 12/15/2022] Open
Abstract
The synchronous activity of groups of neurons is increasingly thought to be important in cortical information processing and transmission. However, most studies of processing in the primary auditory cortex (AI) have viewed neurons as independent filters; little is known about how coordinated AI neuronal activity is expressed throughout cortical columns and how it might enhance the processing of auditory information. To address this, we recorded from populations of neurons in AI cortical columns of anesthetized rats and, using dimensionality reduction techniques, identified multiple coordinated neuronal ensembles (cNEs), which are groups of neurons with reliable synchronous activity. We show that cNEs reflect local network configurations with enhanced information encoding properties that cannot be accounted for by stimulus-driven synchronization alone. Furthermore, similar cNEs were identified in both spontaneous and evoked activity, indicating that columnar cNEs are stable functional constructs that may represent principal units of information processing in AI.
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Affiliation(s)
- Jermyn Z See
- UCSF Center for Integrative Neuroscience, University of California, San Francisco, San Francisco, United States
- Coleman Memorial Laboratory, University of California, San Francisco, San Francisco, United States
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, San Francisco, United States
- Department of Psychiatry, University of California, San Francisco, United States
| | - Craig A Atencio
- UCSF Center for Integrative Neuroscience, University of California, San Francisco, San Francisco, United States
- Coleman Memorial Laboratory, University of California, San Francisco, San Francisco, United States
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, San Francisco, United States
| | - Vikaas S Sohal
- UCSF Center for Integrative Neuroscience, University of California, San Francisco, San Francisco, United States
- Department of Psychiatry, University of California, San Francisco, United States
| | - Christoph E Schreiner
- UCSF Center for Integrative Neuroscience, University of California, San Francisco, San Francisco, United States
- Coleman Memorial Laboratory, University of California, San Francisco, San Francisco, United States
- Department of Otolaryngology - Head and Neck Surgery, University of California, San Francisco, San Francisco, United States
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