e-space
Manchester Metropolitan University's Research Repository

Variability of EEG synchronization prior to and during observation and execution of a sequential finger movement

Calmels, Claire and Holmes, Paul S. and Jarry, Gilbert and Hars, Magaly and Lopez, Emilie and Paillard, Aurore and Stam, Cornelis J. (2005) Variability of EEG synchronization prior to and during observation and execution of a sequential finger movement. Human brain mapping, 27 (3). pp. 251-266. ISSN 1065-9471

Full text not available from this repository.

Abstract

The aim of this study was to test the validity of mirror neuron activity in humans through analysis of electroencephalographic (EEG) functional connectivity during an action not directed towards an object. We investigated changes in EEG interchannel synchronization prior to and during action execution and also prior to and during observation of the same action. Twelve participants observed a simple finger movement sequence. In a second testing session they physically executed the movement. EEGs were recorded from 19 active sites across the cortex. Activity was considered in four frequency bands (7–10 Hz, 10–13 Hz, 13–20 Hz, and 20–30 Hz) using a new measure: synchronization likelihood. This technique considers rapid changes in signal synchronization and spatiotemporal patterns of coherence. The results revealed no statistically significant difference in synchronization likelihood between the observation and execution data. We found an increase in synchronization over a broad frequency range during task processing and suggest that this may reflect interregional cortical coupling of intricately and hierarchically interconnected networks that are active in a similar way during both observation and execution of a movement. While EEG may be insensitive to differences present during the observation and execution of a movement, the results of the present study shed some light on the general mechanisms of cognitive integration. Hum Brain Mapp 27:251–266, 2006. © 2005 Wiley-Liss, Inc.

Impact and Reach

Statistics

Downloads
Activity Overview
0Downloads
94Hits

Additional statistics for this dataset are available via IRStats2.

Altmetric

Actions (login required)

Edit Item Edit Item