EEG recordings during mental calculation and a control task (with presentation of stimuli
with similar physical characteristics to the arithmetic symbols) were obtained in 10 subjects …

In this study we demonstrate the existence of different patterns of EEG activation during the
performance of 4 different tasks involving different components of mental calculation in …

The EEG of 10 normal male young adults was recorded during the performance of three
different tasks: mental calculation, verbal working memory (VWM) and spatial working …

In a search for the physiological correlates of mental activity, localized EEG
desynchronization induced by mental arithmetic was assessed by the entropy of the EEG …

We studied visual information processing using two different tasks in a group of 10 female
and 10 male healthy, right-handed adults. Subjects solved arithmetic tasks shown …

Objective: We hypothesized that mental arithmetic is a complex of sequential information
processing. In order to test the hypothesis, event-related potentials (ERPs) were measured …

This experiment was designed to distinguish possible EEG correlates of the cognitive
components of tasks from EEG patterns associated with stimulus characteristics, limb and …

In separate studies of arithmetic and mental rotation, similar posterior negative slow waves
have been found. This similarity was surprising given the difference in cognitive processing …

Recent behavioral investigations indicate that the processes underlying mental arithmetic
change systematically with practice from deliberate, conscious calculation to automatic …

Although substantial progress has been made in characterizing the cognitive processes
involved in simple arithmetic, the localization of these processes in the brain is not yet well …