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Competing rhythmic neural representations of orientations during concurrent attention to multiple orientation features
- Source :
- Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019), Nature Communications
- Publication Year :
- 2019
- Publisher :
- Nature Portfolio, 2019.
-
Abstract
- When a feature is attended, all locations containing this feature are enhanced throughout the visual field. However, how the brain concurrently attends to multiple features remains unknown and cannot be easily deduced from classical attention theories. Here, we recorded human magnetoencephalography signals when subjects concurrently attended to two spatially overlapping orientations. A time-resolved multivariate inverted encoding model was employed to track the ongoing temporal courses of the neural representations of the attended orientations. We show that the two orientation representations alternate with each other and undergo a theta-band (~4 Hz) rhythmic fluctuation over time. Similar temporal profiles are also revealed in the orientation discrimination performance. Computational modeling suggests a tuning competition process between the two neuronal populations that are selectively tuned to one of the attended orientations. Taken together, our findings reveal for the first time a rhythm-based, time-multiplexing neural machinery underlying concurrent multi-feature attention.<br />The neural mechanisms for concurrently attending to multiple features in the visual stimuli are not well understood. Here, the authors show that the neural representations for two overlapping stimulus features alternate with each other at a ~4 Hz rhythm that was also observed in fluctuations in the task performance.
- Subjects :
- 0301 basic medicine
Adult
Male
Visual perception
Adolescent
genetic structures
Computer science
Science
General Physics and Astronomy
Stimulus (physiology)
General Biochemistry, Genetics and Molecular Biology
Article
03 medical and health sciences
Young Adult
0302 clinical medicine
Rhythm
Spatio-Temporal Analysis
medicine
Humans
Attention
Computer Simulation
Theta Rhythm
lcsh:Science
Orientation, Spatial
Neurons
Multidisciplinary
medicine.diagnostic_test
business.industry
Brain
Magnetoencephalography
Pattern recognition
General Chemistry
Visual field
030104 developmental biology
lcsh:Q
Female
Perception
Artificial intelligence
Visual Fields
business
030217 neurology & neurosurgery
Photic Stimulation
Subjects
Details
- Language :
- English
- ISSN :
- 20411723
- Volume :
- 10
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Nature Communications
- Accession number :
- edsair.doi.dedup.....3bc01f9b015c3c9abfe6d854d932e62e