Neural signature of the perceptual decision in the neural population responses of the inferior temporal cortex
Abstract Rapid categorization of visual objects is critical for comprehending our complex visual world. The role of individual cortical neurons and neural populations in categorizing visual objects during passive vision has previously been studied. However, it is unclear whether and how perceptually...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-05-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-12236-y |
| _version_ | 1811258693520457728 |
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| author | Mohammad-Reza A. Dehaqani Nazli Emadi Abdol-Hossein Vahabie Amin Zandvakili Hossein Esteky |
| author_facet | Mohammad-Reza A. Dehaqani Nazli Emadi Abdol-Hossein Vahabie Amin Zandvakili Hossein Esteky |
| author_sort | Mohammad-Reza A. Dehaqani |
| collection | DOAJ |
| description | Abstract Rapid categorization of visual objects is critical for comprehending our complex visual world. The role of individual cortical neurons and neural populations in categorizing visual objects during passive vision has previously been studied. However, it is unclear whether and how perceptually guided behaviors affect the encoding of stimulus categories by neural population activity in the higher visual cortex. Here we studied the activity of the inferior temporal (IT) cortical neurons in macaque monkeys during both passive viewing and categorization of ambiguous body and object images. We found enhanced category information in the IT neural population activity during the correct, but not wrong, trials of the categorization task compared to the passive task. This encoding enhancement was task difficulty dependent with progressively larger values in trials with more ambiguous stimuli. Enhancement of IT neural population information for behaviorally relevant stimulus features suggests IT neural networks' involvement in perceptual decision-making behavior. |
| first_indexed | 2024-04-12T18:18:24Z |
| format | Article |
| id | doaj.art-02891c2f6cee4800b8f454cb42dfbcbe |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-12T18:18:24Z |
| publishDate | 2022-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-02891c2f6cee4800b8f454cb42dfbcbe2022-12-22T03:21:32ZengNature PortfolioScientific Reports2045-23222022-05-0112111510.1038/s41598-022-12236-yNeural signature of the perceptual decision in the neural population responses of the inferior temporal cortexMohammad-Reza A. Dehaqani0Nazli Emadi1Abdol-Hossein Vahabie2Amin Zandvakili3Hossein Esteky4Cognitive Systems Laboratory, Control and Intelligent Processing Center of Excellence (CIPCE), School of Electrical and Computer Engineering, College of Engineering, University of TehranSchool of Cognitive Sciences, Institute for Research in Fundamental SciencesCognitive Systems Laboratory, Control and Intelligent Processing Center of Excellence (CIPCE), School of Electrical and Computer Engineering, College of Engineering, University of TehranResearch Center for Brain and Cognition, School of Medicine, Shahid Beheshti University of Medical SciencesResearch Center for Brain and Cognition, School of Medicine, Shahid Beheshti University of Medical SciencesAbstract Rapid categorization of visual objects is critical for comprehending our complex visual world. The role of individual cortical neurons and neural populations in categorizing visual objects during passive vision has previously been studied. However, it is unclear whether and how perceptually guided behaviors affect the encoding of stimulus categories by neural population activity in the higher visual cortex. Here we studied the activity of the inferior temporal (IT) cortical neurons in macaque monkeys during both passive viewing and categorization of ambiguous body and object images. We found enhanced category information in the IT neural population activity during the correct, but not wrong, trials of the categorization task compared to the passive task. This encoding enhancement was task difficulty dependent with progressively larger values in trials with more ambiguous stimuli. Enhancement of IT neural population information for behaviorally relevant stimulus features suggests IT neural networks' involvement in perceptual decision-making behavior.https://doi.org/10.1038/s41598-022-12236-y |
| spellingShingle | Mohammad-Reza A. Dehaqani Nazli Emadi Abdol-Hossein Vahabie Amin Zandvakili Hossein Esteky Neural signature of the perceptual decision in the neural population responses of the inferior temporal cortex Scientific Reports |
| title | Neural signature of the perceptual decision in the neural population responses of the inferior temporal cortex |
| title_full | Neural signature of the perceptual decision in the neural population responses of the inferior temporal cortex |
| title_fullStr | Neural signature of the perceptual decision in the neural population responses of the inferior temporal cortex |
| title_full_unstemmed | Neural signature of the perceptual decision in the neural population responses of the inferior temporal cortex |
| title_short | Neural signature of the perceptual decision in the neural population responses of the inferior temporal cortex |
| title_sort | neural signature of the perceptual decision in the neural population responses of the inferior temporal cortex |
| url | https://doi.org/10.1038/s41598-022-12236-y |
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