Enhanced power within the default mode network in normal subjects with elevated scores on an egocentric scale.
Mark W G Collins, Michael A. Persinger
The open neuroimaging journal November 19, 2014 DOI: 10.2174/1874440001408010005 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Observational study Peer reviewed |
|---|---|
| Population | Young university volunteers |
| Measures | sLORETA, egocentricity subscale |
| Topics | Default mode network |
| Keywords | Gender differences Quantitative electroencephalography Sloreta. Psychometric measurement Egocentricism |
| Key findings | Participants with higher egocentricity scores showed significantly more power within DMN structures than in comparison areas, a difference not statistically significant among those with the lowest scores. DMN power was greater in the right hemisphere for men and in the left hemisphere for women. The authors interpret this as consistent with their metaphor linking elevated DMN activity to greater affiliation with the self and its cognitive contents. |
Abstract
Integrated global power from the primary structures that composed the Default Mode Network (DMN) and from a random collection of other structures were measured by sLORETA (standardized low-resolution electromagnetic tomography) for young university volunteers who had completed an inventory that contained a subscale by which egocentricity has been inferred. Subjects who exhibited higher scores for egocentricity displayed significantly more power within the DMN structures relative to comparison areas. This was not observed for individuals whose egocentricity scores were lowest where the power differences between the DMN and comparison structures were not significant statistically. DMN power was greater in the right hemisphere than the left for men but greater in the left hemisphere than the right for women. The results are consistent with our operating metaphor that elevation of power or activity within the DMN is associated with greater affiliation with the self and its cognitive contents.
Comparable studies
Other observational and cohort studies on default mode network, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| A default mode of brain function Normal adult human brain | 2001 | Observational study | |
| Resting-State Functional Connectivity Reflects Structural Connectivity in the Default Mode Network Healthy subjects | 2008 | Observational cohort | |
| Meditation experience is associated with increased cortical thickness Participants with extensive Insight meditation experience and matched controls | 2005 | Observational cohort | n = 20 |
| Meditation experience is associated with differences in default mode network activity and connectivity Experienced meditators and matched meditation-naive controls | 2011 | Observational cohort | |
| The precuneus/posterior cingulate cortex plays a pivotal role in the default mode network: Evidence from a partial correlation network analysis Healthy subjects | 2008 | Observational study |
Citations in the library
Cites 3
- Potential production of Hughlings Jackson's “parasitic consciousness” by physiologically-patterned weak transcerebral magnetic fields: QEEG and source localization Epilepsy & Behavior July 17, 2013
- Persistent operational synchrony within brain default-mode network and self-processing operations in healthy subjects. Brain and Cognition March 2011
- Brain activation during autobiographical memory retrieval with special reference to default mode network. The open neuroimaging journal 2011