Impact of tDCS on executive functioning and executive domains

Transcranial direct current stimulation (tDCS) over human dorsolateral prefrontal cortex (DLPFC) has been used to modulate executive function but has led to inconsistent results (Tremblay et al., 2014). Since most of these studies have used direct performance measures such as reaction times or number of errors as proxies for the cognitive functions that the task is thought to reflect, inconsistencies may be related to task impurity problems.