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- Title
Spontaneous activity in default-mode network predicts ascription of self-relatedness to stimuli.
- Authors
Pengmin Qin; Simone Grimm; Duncan, Niall W.; Yan Fan; Zirui Huang; Timothy Lane; Xuchu Weng; Malek Bajbouj; Georg Northoff
- Abstract
Spontaneous activity levels prior to stimulus presentation can determine how that stimulus will be perceived. It has also been proposed that such spontaneous activity, particularly in the default-mode network (DMN), is involved in self-related processing. We therefore hypothesised that pre-stimulus activity levels in the DMN predict whether a stimulus is judged as self-related or not. Participants were presented in the MRI scanner with a white noise stimulus that they were instructed contained their name or another. They then had to respond with which name they thought they heard. Regions where there was an activity level difference between self and other response trials 2 s prior to the stimulus being presented were identified. Pre-stimulus activity levels were higher in the right temporoparietal junction, the right temporal pole and the left superior temporal gyrus in trials where the participant responded that they heard their own name than trials where they responded that they heard another. Pre-stimulus spontaneous activity levels in particular brain regions, largely overlapping with the DMN, predict the subsequent judgement of stimuli as self-related. This extends our current knowledge of selfrelated processing and its apparent relationship with intrinsic brain activity in what can be termed a rest-self overlap.
- Subjects
SPONTANEITY (Personality trait); RELATEDNESS (Psychology); STIMULUS &; response (Psychology); TEMPOROPARIETAL junction; ASCRIBED status
- Publication
Social Cognitive & Affective Neuroscience, 2016, Vol 11, Issue 4, p693
- ISSN
1749-5016
- Publication type
Article
- DOI
10.1093/scan/nsw008