Concurrent validity and reliability of lower and upper alpha activities as measures of visual and kinesthetic imagery ability

Abstract

The purpose of this study was to correlate lower and upper alpha power with the Revised Movement Imagery Questionnaire (MIQ‐R; Hall & Martin, 1997) to determine the validity of electroencephalographic (EEG) recordings as measures of kinesthetic and visual imagery ability. EEG activity was recorded from 30 right‐handed‐volunteers. Results revealed that the internal consistency and the test‐retest reliability of both kinesthetic and visual subscales as measured by lower and upper alpha power were acceptable. Cortical activation was significantly correlated(p < .05) with MIQ‐R kinesthetic subscale at both the right and left parietal sites. Further, cortical activation was significantly correlated (p < .05) with MIQ‐R visual subscale at the right and left occipital and parietal regions. These results support previous research (Cremades, 2002) showing that both left and right hemispheres are activated during imagery processing. These findings suggest that EEG recordings at the occipital and parietal regions can be used to assess kinesthetic and/or visual imagery ability and that greater imagery ability is linked with cerebral cortical efficiency.

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