A pre-task resting condition neither ‘baseline’ nor ‘zero’

• DOI: 10.1016/j.neulet.2005.08.027
• Publication Date: 2005-09-15T02:49:52Z
• Authors: José A. González-...; Yamilka Céspedes-...; Kenneth Campbell; Werner A. Scherbaum; Jorge Bosch-Bayard; Pedro Figueredo-R...
• Keywords: Adult; Male; Brain Mapping; Rest; Brain; Reproducibility of Results; Electroencephalography; Reference Standards; Sensitivity and Specificity; 03 medical and health sciences; 0302 clinical medicine; Reference Values; Task Performance and Analysis; Humans; Female; Diagnosis, Computer-Assisted

This study introduce the comparison of a 'reference state' versus a resting condition (zero), defined upon normative developmental equations. We compared pre-task 'resting' data from healthy individuals with the Normative Cuban digital resting EEG-database recently calculated for VARETA (qEEG/VARETA). The results allowed us to state that a 'pre-task resting conditions' exists as a state beyond the 'zero' or 'baseline' condition. The pre-task 'resting' condition is never truly 'at rest', however most of the previous published fMRI/PET studies assumed such a pre-task condition as reference/baseline condition. By defining different 'resting states' by qEEG/VARETA analyses, we have a potential methodology which can define resting state conditions and to be sure that they are consistent when comparing within group analyses across tasks or between groups either void of task or for task specific conditions.