Alterations in resting-state activity relate to performance in a verbal recognition task.
PLoS One
; 8(6): e65608, 2013.
Article
in En
| MEDLINE
| ID: mdl-23785436
ABSTRACT
In the brain, resting-state activity refers to non-random patterns of intrinsic activity occurring when participants are not actively engaged in a task. We monitored resting-state activity using electroencephalogram (EEG) both before and after a verbal recognition task. We show a strong positive correlation between accuracy in verbal recognition and pre-task resting-state alpha power at posterior sites. We further characterized this effect by examining resting-state post-task activity. We found marked alterations in resting-state alpha power when comparing pre- and post-task periods, with more pronounced alterations in participants that attained higher task accuracy. These findings support a dynamical view of cognitive processes where patterns of ongoing brain activity can facilitate -or interfere- with optimal task performance.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Rest
/
Speech
/
Task Performance and Analysis
/
Brain
/
Recognition, Psychology
Limits:
Humans
Language:
En
Journal:
PLoS One
Journal subject:
CIENCIA
/
MEDICINA
Year:
2013
Type:
Article
Affiliation country:
Canada