The Value of Separating Arousal and Task-related Activation (Lab Report Sample)
This laboratory studies the value of separating arousal and task-related activation, revealing several measurement aspects. The skin conductance levels (SCLs) have negatively correlated with the global Electroencephalography (EEG) alpha value (Barry et al., 2009). Another aspect of our dissertation is that task-specific activation changes are associated with topographical EEG activity that reflects local brain processing. However, there are changes throughout the scalp during such work, indicating an overall arousal effect. Processing-related local EEG changes can occur with or without changes in arousal, as defined by the SCL effect. These results affect EEG studies that use resting eyes-closed and eyes-open as initial estimates
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PSYC234 Laboratory Report
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University
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Abstract
This laboratory studies the value of separating arousal and task-related activation, revealing several measurement aspects. The skin conductance levels (SCLs) have negatively correlated with the global Electroencephalography (EEG) alpha value (Barry et al., 2009). Another aspect of our dissertation is that task-specific activation changes are associated with topographical EEG activity that reflects local brain processing. However, there are changes throughout the scalp during such work, indicating an overall arousal effect. Processing-related local EEG changes can occur with or without changes in arousal, as defined by the SCL effect. These results affect EEG studies that use resting eyes-closed and eyes-open as initial estimates (Touryan et al., 2016). It is because they can represent contributions from separate processes (with changes in global arousal).
