Default mode network and attention network in unconscious processing
Proceedings of the 2021 IEEE International Conference on Human Machine Systems Ichms 2021 September 8, 2021 DOI: 10.1109/ichms53169.2021.9582459 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Reanalysis of experimental data Peer reviewed |
|---|---|
| Topics | Default mode network |
| Key findings | Unconscious cues enhanced communication within the default mode network and attention network, whereas conscious cues did not differ from no cue. The authors propose that unconscious cues activate the default mode network to support divergent activation, with the attention network monitoring and inhibiting unwanted activation. |
Abstract
The critical role of unconscious processing in problem solving had been proved by previous empirical evidence. However, we still could not understand how unconscious mind process information differently from the conscious mind. One previous study utilized an event-related potential approach to demonstrate the different processes we went through during processing unconscious cue and conscious cue. In addition to this sequential and localized processing view, this study reanalyzed the data from that study and aimed to investigate how the default mode network and attention network reacted to and engaged in the processing of an unconscious cue. Functional connectivity was measured and graph theory was utilized to obtain the network dynamics. The results showed that compared to the no cue condition, the conscious cue condition did not exhibit a different communication pattern within the default mode network and the attention network. But after the presentation of the unconscious cue, the default mode network and attention network both reacted with enhanced communication within the network. It suggests that if a stimulus is presented below the perceptual threshold, it will activate the default mode network, which might support the divergent activation of the cue. The attention network might be engaged to monitor the default mode network and inhibit some unwanted divergent activation.
Comparable studies
Other experimental studies on default mode network, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| Functional connectivity of default mode network components: Correlation, anticorrelation, and causality Healthy subjects | 2008 | Observational study using resting-state fMRI and seed correlation analysis | |
| Patterns of Brain Activity Supporting Autobiographical Memory, Prospection, and Theory of Mind, and Their Relationship to the Default Mode Network Healthy subjects | 2009 | Experimental study using fMRI | |
| Dynamic reconfiguration of the default mode network during narrative comprehension Human subjects | 2016 | Experimental study | |
| Broadband Cortical Desynchronization Underlies the Human Psychedelic State Healthy human participants | 2013 | Experimental study | |
| The brain on art: intense aesthetic experience activates the default mode network Human observers | 2012 | Observational study with fMRI and behavioral analysis |